Method for predicting the molecular composition of a hydrocracking feedstock

Abstract

The application provides a method for predicting the molecular composition of a hydrocracking feedstock, comprising the following steps: obtaining experimental values of physical properties of a hydrocracking feedstock to be measured; obtaining the molecular composition and content of the hydrocracking feedstock according to the experimental values of the physical properties of the hydrocracking feedstock to be measured and a pre-established fingerprint library of hydrocracking feedstock; the fingerprint library of hydrocracking feedstock comprises the relationship between the physical property parameters of the hydrocracking feedstock, the carbon number, the structure and the content of each of the plurality of molecular matrices, and the relationship between the physical property parameters and the plurality of molecular matrices. The prediction method provided by the application can effectively characterize the hydrocracking feedstock, can be seamlessly connected with a hydrocracking reaction kinetics model, and the calculation result is fast, accurate and reliable.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hydrocracking process, and particularly relates to a prediction method of molecular composition of hydrocracking feedstock. BACKGROUND

[0002] Hydrocracking (HCR) is one of the main processes of petroleum refining, and is also an improvement of catalytic cracking technology. In essence, it is an organic combination of hydrogenation and catalytic cracking process. It can convert heavy oil into light oil, such as gasoline, kerosene, diesel or catalytic cracking, cracking of olefin raw materials, etc. under the catalytic action of hydrogen.

[0003] In order to establish a molecular level reaction kinetics model for optimizing the production process, the molecular composition of heavy oil, i.e. the hydrocracking feedstock, needs to be determined first for optimizing the feedstock selection from the molecular level. The prior art discloses a variety of molecular reaction kinetics models of hydrocracking, but most of the existing molecular kinetics analysis methods of the molecular composition of the hydrocracking feedstock have the problems of too many molecules, slow model solving, and difficulty in being used for online real-time simulation; some have the problem of improper selection of molecular types, resulting in a large difference between the simulation results and the actual measured values. SUMMARY

[0004] Therefore, the present application aims to provide a prediction method of the molecular composition of the hydrocracking feedstock. The prediction method provided by the present application can effectively characterize the hydrocracking feedstock, can be seamlessly connected with the hydrocracking reaction kinetics model, and the calculation results are fast, accurate and reliable.

[0005] The present application provides a prediction method of the molecular composition of the hydrocracking feedstock, comprising the following steps: step S1), obtaining the experimental value of the physical property of the to-be-tested hydrocracking feedstock; and step S2), obtaining the molecular composition and content of the hydrocracking feedstock according to the experimental value of the physical property of the to-be-tested hydrocracking feedstock and a pre-established fingerprint library of the hydrocracking feedstock. The fingerprint library of the hydrocracking feedstock comprises the relationship among the physical property parameters of the hydrocracking feedstock, the carbon number, the structure and the content of each of a plurality of molecular matrices, and the relationship between the physical property parameters and the plurality of molecular matrices. The plurality of molecular matrices comprises light-end components with 1-8 carbon atoms, middle-end components with 9-18 carbon atoms and heavy-end components with 21-47 carbon atoms. The light-end components, the middle-end components and the heavy-end components independently comprise alkanes, cycloalkanes, arenes, sulfur-containing components and nitrogen-containing components.

[0006] The present application also provides a machine-readable storage medium having instructions stored thereon for causing a machine to perform the method described in the above technical solution.

[0007] The present application constructs a molecular matrix from a large amount of hydrocracking raw material and hydrocracking reaction product analysis data, avoids the complexity of single molecule calculation, selects the most representative matrix molecules to represent the composition of the hydrocracking raw material, and the division of molecular types and carbon numbers is more accurate and comprehensive; meanwhile, a molecular fingerprint library of different hydrocracking raw materials is constructed based on the molecular matrix, and the correlation calculation formula of the macroscopic physical properties and the matrix molecules established based on a large amount of hydrocracking raw material samples is more accurate than the artificially set mixing rules, has stronger practicability, and has better prediction effect. BRIEF DESCRIPTION OF DRAWINGS

[0008] Figure 1 The flowchart of the prediction method embodiment provided by the present application is shown in the figure.

[0009] Figure 2 The flowchart of the second embodiment of the prediction method provided by the present application is shown in the figure.

[0010] Figure 3 The flowchart of the third embodiment of the prediction method provided by the present application is shown in the figure. DETAILED DESCRIPTION

[0011] The present application provides a prediction method for the molecular composition of a hydrocracking raw material, comprising the following steps:

[0012] Step S1): obtaining the experimental value of the physical property of the hydrocracking raw material to be tested;

[0013] Step S2): obtaining the molecular composition and content of the hydrocracking raw material according to the experimental value of the physical property of the hydrocracking raw material to be tested and the pre-established fingerprint library of the hydrocracking raw material;

[0014] The fingerprint library of the hydrocracking raw material includes the relationship between the physical property parameters of the hydrocracking raw material, the carbon numbers, the structures and the contents of the plurality of molecular matrices, and the relationship between the physical property parameters and the plurality of molecular matrices;

[0015] The plurality of molecular matrices include light-end components with 1-8 carbon atoms, middle-end components with 9-18 carbon atoms and heavy-end components with 21-47 carbon atoms; the light-end components, the middle-end components and the heavy-end components independently include alkanes, cycloalkanes, arenes, sulfur-containing components and nitrogen-containing components.

[0016] Reference is made to Figure 1 , Figure 1 The flowchart of the prediction method for the molecular composition of the hydrocracking raw material provided by the present application is shown in the figure.

[0017] The present application first obtains the experimental value of the physical property of the hydrocracking raw material to be tested, including but not limited to distillation curve parameters, density or specific gravity parameters, sulfur content parameters, nitrogen content parameters, basic nitrogen content parameters and bromine value parameters, etc.

[0018] After obtaining the experimental value of the physical property of the hydrocracking feedstock to be tested, the molecular composition and content of the hydrocracking feedstock to be tested are obtained according to the fingerprint library established in advance. In some specific implementations, the hydrocracking feedstock fingerprint library includes the relationship between the physical property parameters of the hydrocracking feedstock, the carbon number, the structure and the content of each of the plurality of molecular matrices, and the relationship between the physical property parameters and the plurality of molecular matrices; wherein the plurality of molecular matrices includes light-end components with 1-8 carbon atoms, middle-end components with 9-18 carbon atoms, and heavy-end components with 21-47 carbon atoms; and the light-end components, the middle-end components and the middle-end components independently include alkanes, cycloalkanes, arenes, sulfides and nitrides.

[0019] Specifically, the present application constructs a molecular matrix according to a large amount of analysis data of hydrocracking feedstock and hydrocracking reaction products. From the number of carbon atoms, the molecular matrix includes light-end components with 1-8 carbon atoms, middle-end components with 9-18 carbon atoms, and heavy-end components with 21-47 carbon atoms; from the structure, the molecular matrix includes alkanes, cycloalkanes, arenes, sulfides and nitrides.

[0020] In some specific implementations, in the molecular matrix, the alkanes include n-alkanes of C1-10, C14, C18, C26, and C47; the cycloalkanes include monocycloalkanes of C6-C9, bicycloalkanes of C10, monocycloalkanes, bicycloalkanes, and tricycloalkanes of C14, monocycloalkanes, bicycloalkanes, tricycloalkanes, and tetracycloalkanes of C18, monocycloalkanes, bicycloalkanes, tricycloalkanes, and tetracycloalkanes of C21, monocycloalkanes, bicycloalkanes, tricycloalkanes, and tetracycloalkanes of C47; the aromatics include benzenes of C6-9; benzenes, naphthalenes, tetrahydronaphthalenes, and monocyclic aromatic and bicycloalkanes of C10; benzenes, naphthalenes, tetrahydronaphthalenes, monocyclic aromatic and bicycloalkanes, and bicyclic aromatic and monocycloalkanes of C14; benzenes, naphthalenes, tetrahydronaphthalenes, monocyclic aromatic and bicycloalkanes, and bicyclic aromatic and monocycloalkanes of C18; benzenes, naphthalenes, tetrahydronaphthalenes, monocyclic aromatic and bicycloalkanes, bicyclic aromatic and monocycloalkanes, tricyclic aromatics, fluorenes, tetracyclic aromatics, monocyclic aromatic and tricycloalkanes, and bicyclic aromatic and bicycloalkanes of C21; benzenes, naphthalenes, tetrahydronaphthalenes, monocyclic aromatic and bicycloalkanes, bicyclic aromatic and monocycloalkanes, tricyclic aromatics, fluorenes, tetracyclic aromatics, monocyclic aromatic and tricycloalkanes, and bicyclic aromatic and bicycloalkanes of C21; the sulfur-containing components include thiophenes of C4; cyclic sulfurs and aromatic and thiophenes of C8; cyclic sulfurs and aromatic and thiophenes of C10; cyclic sulfurs and aromatic and thiophenes of C12; cyclic sulfurs and aromatic and thiophenes of C14; cyclic sulfurs and aromatic and thiophenes of C21; cyclic sulfurs and aromatic and thiophenes of C28; cyclic sulfurs and aromatic and thiophenes of C47; the nitrogen-containing components include pyrroles and non-basic nitrogen compounds of C4; pyrroles, quinolines, and non-basic nitrogen compounds of C9; pyrroles, quinolines, phenanthridines, carbazoles, and non-basic nitrogen compounds of C21; pyrroles, quinolines, phenanthridines, carbazoles, and non-basic nitrogen compounds of C35; and pyrroles, quinolines, phenanthridines, carbazoles, and non-basic nitrogen compounds of C47.

[0021] In some specific implementations, the light end components include C1-8 n-alkanes, C6-8 monocyclic naphthenes, C6-8 monocyclic aromatics, thiophene, benzothiophene, 8 carbon ring sulfur compounds, 4 carbon non-basic nitrogen compounds, and pyrrole; the mid- end components include n-nonane, n-decane, n-tetradecane, n-octadecane, 9 carbon monocyclic naphthene, 10 carbon bicyclic naphthene, 14 carbon monocyclic naphthene, 14 carbon bicyclic naphthene, 14 carbon tricyclic naphthene, 18 carbon monocyclic naphthene, 18 carbon bicyclic naphthene, 18 carbon tricyclic naphthene, 9 carbon monocyclic aromatic, 10 carbon monocyclic aromatic, 14 carbon monocyclic aromatic, 14 carbon monocyclic aromatic and monocyclic naphthene, 14 carbon bicyclic aromatic, 14 carbon monocyclic aromatic and bicyclic naphthene, 14 carbon bicyclic aromatic and monocyclic naphthene, 14 carbon monocyclic aromatic and monocyclic naphthene and monocyclic aromatic, 18 carbon monocyclic aromatic, 18 carbon monocyclic aromatic and monocyclic naphthene, 18 carbon bicyclic aromatic, 18 carbon monocyclic aromatic and bicyclic naphthene, 18 carbon bicyclic aromatic and monocyclic naphthene, 18 carbon monocyclic aromatic and monocyclic naphthene and monocyclic aromatic, 10 carbon monocyclic aromatic and thiophene, 10 carbon monocyclic naphthene and thiophene, 12 carbon ring sulfur compound, 14 carbon monocyclic aromatic and thiophene and monocyclic naphthene, 10 carbon bicyclic aromatic and thiophene, 9 carbon non-basic nitrogen and aromatic, 9 carbon pyrrole and monocyclic aromatic, and 9 carbon pyrrole and monocyclic naphthene;The heavy end components include n-hexacosane, n-heptetracontane, monocyclic alkanes containing 21 carbon atoms, bicyclic alkanes containing 21 carbon atoms, tricyclic alkanes containing 21 carbon atoms, tetracyclic alkanes containing 21 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms, bicyclic aromatic hydrocarbons containing 47 carbon atoms, tricyclic aromatic hydrocarbons containing 47 carbon atoms, tetracyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms and monocyclic alkanes, bicyclic aromatic hydrocarbons containing 21 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms and bicyclic alkanes, bicyclic aromatic hydrocarbons containing 21 carbon atoms and monocyclic alkanes, tricyclic aromatic hydrocarbons containing 21 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms and monocyclic alkanes and monocyclic aromatic hydrocarbons, tetracyclic aromatic hydrocarbons containing 21 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms and tricyclic alkanes, bicyclic aromatic hydrocarbons containing 21 carbon atoms and bicyclic alkanes, monocyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms and monocyclic alkanes, bicyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms and bicyclic alkanes, bicyclic aromatic hydrocarbons containing 47 carbon atoms and monocyclic alkanes, tricyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms and monocyclic alkanes and monocyclic aromatic hydrocarbons, tetracyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms and tricyclic alkanes, bicyclic aromatic hydrocarbons containing 47 carbon atoms and bicyclic alkanes, monocyclic aromatic hydrocarbons containing 21 carbon atoms and thiophene and monocyclic alkanes, bicyclic aromatic hydrocarbons containing 21 carbon atoms and thiophene, cyclic sulfur compounds containing 28 carbon atoms, bicyclic aromatic hydrocarbons containing 47 carbon atoms and thiophene and monocyclic alkanes, tricyclic aromatic hydrocarbons containing 47 carbon atoms and thiophene, non-basic nitrogen compounds containing 21 carbon atoms and bicyclic aromatic hydrocarbons, non-basic nitrogen compounds containing 47 carbon atoms and tricyclic aromatic hydrocarbons, pyrrole containing 21 carbon atoms and monocyclic aromatic hydrocarbons and monocyclic alkanes, pyrrole containing 21 carbon atoms and bicyclic aromatic hydrocarbons, and pyrrole containing 35 carbon atoms and bicyclic aromatic hydrocarbons and monocyclic alkanes.

[0022] After the molecular matrix is established, a hydrocracking feedstock fingerprint library is constructed according to the molecular matrix. In some specific implementations, the hydrocracking feedstock fingerprint library includes a light vacuum gas oil fingerprint library, a heavy vacuum gas oil fingerprint library, a light coking gas oil fingerprint library, a heavy coking gas oil fingerprint library, a catalytic cracking heavy cycle oil fingerprint library, or a hydrocracking tail oil fingerprint library; at this time, the prediction method further includes selecting a corresponding fingerprint library according to the type of the hydrocracking feedstock to be tested. See Figure 2 , Figure 2 The flowchart of the second embodiment of the prediction method provided by the present application is shown. The present application constructs different fingerprint libraries according to different types of hydrocracking feedstocks, each of which involves the above-mentioned multiple molecular matrices, thereby corresponding to the prediction of different types of hydrocracking feedstocks to be tested.

[0023] In some specific embodiments, the fingerprint library comprises the physical property parameters of the hydrocracking feedstock, the relationship between the carbon number, structure and content of each of the plurality of molecular matrices, and the relationship between the physical property parameters and the plurality of molecular matrices, so that the molecular composition of each type of hydrocracking feedstock is consistent with the measurable overall properties thereof, such as distillation curve, specific gravity, sulfur content, nitrogen content, basic nitrogen content, etc.

[0024] In some specific embodiments, the specific process for obtaining the molecular composition and content of the hydrocracking feedstock according to the experimental value of the physical property of the hydrocracking feedstock to be measured and the pre-established fingerprint library of the hydrocracking feedstock is as follows: establishing a matrix relationship between the experimental value of the physical property of the hydrocracking feedstock to be measured and the pre-established fingerprint library of the hydrocracking feedstock, and obtaining the molecular composition of the hydrocracking feedstock by the matrix relationship. See Figure 3 , Figure 3 The flowchart of the third embodiment of the prediction method provided by the present application is shown in the figure. After obtaining the experimental value of the physical property of the hydrocracking feedstock to be measured, a matrix relationship is established between the experimental value and the pre-established fingerprint library, and the matrix parameters and the molecular composition and content of the hydrocracking feedstock to be measured are calculated. The matrix relationship is actually the relationship between the physical property of the hydrocracking feedstock to be measured and the physical property, molecular composition in the fingerprint library, and the relationship between the physical property and the molecular composition.

[0025] In some specific embodiments, the matrix relationship comprises:

[0026] 0 = P x1 -f (FP_P x1 , L_PARM) Formula (I)

[0027] wherein P x1 is the mass content of the alkane with X1 carbon atoms in the hydrocracking feedstock to be measured, FP_P x1 is the mass content of the alkane with X1 carbon atoms in the light end component of the fingerprint library of the hydrocracking feedstock, and L_PARM is the light end component parameter; X1 is an integer from 1 to 10.

[0028] 0 = P x2 -f (FP_P x2 , M_PARM) Formula (II)

[0029] wherein P x2 is the mass content of the alkane with X2 carbon atoms in the hydrocracking feedstock to be measured, FP_P x2 is the mass content of the alkane with X2 carbon atoms in the middle end component of the fingerprint library of the hydrocracking feedstock, and M_PARM is the middle end component parameter; X2 is an integer from 11 to 18.

[0030] 0 = P x3 -f (FP_Px3 H_PARM) Equation (III)

[0031] wherein N x3 is the mass content of the alkane with X3 carbon atoms in the hydrocracking feedstock to be measured, FP_N x3 is the mass content of the alkane with X3 carbon atoms in the heavy end component of the hydrocracking feedstock fingerprint library, and H_PARM is the heavy end component parameter; X3 is an integer from 19 to 47;

[0032] 0 = N x1 -f (FP_N x1 , L_PARM) Equation (IV)

[0033] wherein N x1 is the mass content of the naphthene with X1 carbon atoms in the hydrocracking feedstock to be measured, FP_N x1 is the mass content of the naphthene with X1 carbon atoms in the light end component of the hydrocracking feedstock fingerprint library, and L_PARM is the light end component parameter; X1 is an integer from 1 to 10;

[0034] 0 = N x2 -f (FP_N x2 , M_PARM, CN_PARM) Equation (V)

[0035] wherein N x2 is the mass content of the naphthene with X2 carbon atoms in the hydrocracking feedstock to be measured, FP_N x2 is the mass content of the naphthene with X2 carbon atoms in the middle end component of the hydrocracking feedstock fingerprint library, M_PARM is the middle end component parameter, and CN_PARM is the naphthene parameter; X2 is an integer from 11 to 18;

[0036] 0 = N x3 -f (FP_N x3 , H_PARM, CN_PARM) Equation (VI)

[0037] wherein N x3 is the mass content of the alkane with X3 carbon atoms in the hydrocracking feedstock to be measured, FP_N x3 is the mass content of the alkane with X3 carbon atoms in the heavy end component of the hydrocracking feedstock fingerprint library, H_PARM is the middle end component parameter, and CN_PARM is the naphthene parameter; X3 is an integer from 19 to 47;

[0038] 0 = A x1 -f (FP_A x1 , L_PARM) Equation (VII)

[0039] wherein A x1FP_A is the mass content of the aromatics of X1 carbon atoms in the to-be-tested hydrocracking feedstock, FP_TOT_PCT_MAR is the total mass content of the aromatics in the middle-end component of the hydrocracking feedstock fingerprint library, FP_TOT_PCT_ARa1_M is the mass content of the a1 aromatics rings in the total aromatics in the middle-end component of the hydrocracking feedstock fingerprint library, and PCT_ARa1_M is the mass content of the a1 aromatics rings in the total aromatics in the to-be-tested hydrocracking feedstock; X1 is an integer from 1 to 10; x1 FP_A is the mass content of the aromatics of X1 carbon atoms in the to-be-tested hydrocracking feedstock, FP_TOT_PCT_MAR is the total mass content of the aromatics in the middle-end component of the hydrocracking feedstock fingerprint library, FP_TOT_PCT_ARa1_M is the mass content of the a1 aromatics rings in the total aromatics in the middle-end component of the hydrocracking feedstock fingerprint library, and PCT_ARa1_M is the mass content of the a1 aromatics rings in the total aromatics in the to-be-tested hydrocracking feedstock; X1 is an integer from 1 to 10;

[0040] 0 = A x2 a1Nb1-f(FP_A x2 a1Nb1,M_PARM,CA_PARM,CN_PARM,FP_TOT_PCT_MAR,FP_TOT_PCT_ARa1_M,PCT_ARa1_M) Formula (VIII)

[0041] wherein, A x2 a1 is the mass content of the aromatics of X2 carbon atoms a1 aromatic rings and b1 naphthenes in the to-be-tested hydrocracking feedstock, FP_A x2 a1 is the mass content of the aromatics of X2 carbon atoms a1 aromatic rings and b1 naphthenes in the middle-end component of the hydrocracking feedstock fingerprint library, M_PARM is the middle-end component parameter, CA_PARM is the aromatic parameter, CN_PARM is the naphthene parameter, FP_TOT_PCT_MAR is the mass content of the aromatics in the middle-end component of the hydrocracking feedstock fingerprint library, FP_TOT_PCT_ARa1_M is the mass content of the a1 aromatic rings in the total aromatics in the middle-end component of the hydrocracking feedstock fingerprint library, PCT_ARa1_M is the mass content of the a1 aromatic rings in the total aromatics in the to-be-tested hydrocracking feedstock; X2 is an integer from 11 to 18, a1 is an integer from 1 to 2, and b1 is an integer from 0 to 2;

[0042] 0 = A x3 a2Nb2-f(FP_A x3 a2Nb2,H_PARM,CA_PARM,CN_PARM,FP_TOT_PCT_HAR,FP_TOT_PCT_ARa2_H,PCT_AR1_2_H, FRC_ARa2OF1_2) Formula (IX)

[0043] wherein, A x3 a2 is the mass content of the aromatics of X3 carbon atoms a2 aromatic rings and b2 naphthenes in the to-be-tested hydrocracking feedstock, FP_A x3a2 is the mass content of the aromatics of X3 carbon atoms a2 aromatic rings and b2 naphthenes in the heavy end component of the hydrocracking feed fingerprint library, H_PARM is the middle end component parameter; CA_PARM is the aromatic parameter, CN_PARM is the naphthene parameter, FP_TOT_PCT_HAR is the mass content of the aromatics in the heavy end component of the hydrocracking feed fingerprint library, FP_TOT_PCT_ARa2_H is the mass content of the a2 aromatic rings of the aromatics in the heavy end component, PCT_AR1_2_H is the mass content of the mono- and di- ring aromatics of the hydrocracking feed to be measured in the total aromatics of the heavy end component; FRC_ARa2OF1_2 is the mass content of the a2 aromatic rings of the aromatics of the hydrocracking feed to be measured in the mono- and di- ring aromatics of the heavy end component; X3 is an integer of 19-47, a2 is an integer of 1-2, b2 is an integer of 0-2;

[0044] 0 = A x3 a3Nb2-f(FP_A x3 a3Nb2,H_PARM,CA_PARM,CN_PARM,FP_TOT_PCT_HAR,FP_TOT_PCT_ARa3_H,PCT_AR3_4_H, FRC_ARa3OF3_4) Formula (X)

[0045] Wherein, A x3 a3 is the mass content of the aromatics of X3 carbon atoms a3 aromatic rings and b2 naphthenes in the hydrocracking feed to be measured, FP_A x3 a3 is the mass content of the aromatics of X3 carbon atoms a3 aromatic rings and b2 naphthenes in the heavy end component of the hydrocracking feed fingerprint library, H_PARM is the heavy end component parameter; CA_PARM is the aromatic parameter, CN_PARM is the naphthene parameter, FP_TOT_PCT_HAR is the mass content of the aromatics in the heavy end component of the hydrocracking feed fingerprint library, FP_TOT_PCT_ARa3_H is the mass content of the a3 aromatic rings of the aromatics in the total aromatics of the heavy end component, PCT_AR3_4_H is the mass content of the tri- and tetra- ring aromatics of the hydrocracking feed to be measured in the total aromatics of the heavy end component; FRC_ARa3OF3_4 is the mass content of the a3 aromatic rings of the aromatics of the hydrocracking feed to be measured in the tri- and tetra- ring aromatics of the heavy end component; X3 is an integer of 19-47, a3 is an integer of 3-4, b2 is an integer of 0-2;

[0046] 0 = S x1 Aa4Nb4-f(FP_S x1 Aa4Nb4,L_PARM,S_PARM) Formula (XI)

[0047] Wherein, S x1Aa4Nb4 is the mass content of the sulfides of X1 carbon atoms and the aromatics of a4 aromatic rings and the naphthenes of b4 rings in the hydrocracking feedstock to be tested, FP_P x1 is the mass content of the sulfides of X1 carbon atoms and the aromatics of a4 aromatic rings and the naphthenes of b4 rings in the light end component of the hydrocracking feedstock fingerprint library, L_PARM is the light end component parameter, S_PARM is the sulfur parameter; X1 is an integer from 1 to 10; a4 is an integer from 0 to 3, and b4 is an integer from 0 to 2;

[0048] 0 = S x2 Aa4Nb4-f (FP_S x2 Aa4Nb4, M_PARM, S_PARM) Formula (XII)

[0049] wherein, S x2 Aa4Nb4 is the mass content of the sulfides of X2 carbon atoms and the aromatics of a4 aromatic rings and the naphthenes of b4 rings in the hydrocracking feedstock to be tested, FP_P x2 is the mass content of the sulfides of X2 carbon atoms and the aromatics of a4 aromatic rings and the naphthenes of b4 rings in the middle end component of the hydrocracking feedstock fingerprint library, M_PARM is the light end component parameter, S_PARM is the sulfur parameter; X2 is an integer from 11 to 18; a4 is an integer from 0 to 3, and b4 is an integer from 0 to 2;

[0050] 0 = S x3 Aa4Nb4-f (FP_S x3 Aa4Nb4, H_PARM, S_PARM) Formula (XIII)

[0051] wherein, S x3 Aa4Nb4 is the mass content of the sulfides of X3 carbon atoms and the aromatics of a4 aromatic rings and the naphthenes of b4 rings in the hydrocracking feedstock to be tested, FP_P x3 is the mass content of the sulfides of X2 carbon atoms and the aromatics of a4 aromatic rings and the naphthenes of b4 rings in the heavy end component of the hydrocracking feedstock fingerprint library, H_PARM is the heavy end component parameter, S_PARM is the sulfur parameter; X3 is an integer from 19 to 47; a4 is an integer from 0 to 3, and b4 is an integer from 0 to 2;

[0052] 0 = NNT x1 Aa5Nb5-f (FP_NNT x1 Aa5Nb5, L_PARM, N_PARM) Formula (XIV)

[0053] wherein, NNT x1Aa5Nb5 is the mass content of non-basic nitrogen compounds of X1 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock to be tested, FP_NNT x1 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X1 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock fingerprint library light end component, L_PARM is the light end component parameter, N_PARM is the non-basic nitrogen parameter; X1 is an integer from 1 to 10; a5 is an integer from 0 to 3, and b5 is an integer from 0 to 2;

[0054] 0 = NNT x2 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X1 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock to be tested, FP_NNT x2 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X1 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock fingerprint library light end component, L_PARM is the light end component parameter, N_PARM is the non-basic nitrogen parameter; X1 is an integer from 1 to 10; a5 is an integer from 0 to 3, and b5 is an integer from 0 to 2;

[0055] wherein NNT x2 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X2 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock to be tested, FP_NNT x2 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X2 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock fingerprint library middle end component, M_PARM is the middle end component parameter, N_PARM is the non-basic nitrogen parameter; X2 is an integer from 11 to 18; a5 is an integer from 0 to 3, and b5 is an integer from 0 to 2;

[0056] 0 = NNT x3 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X2 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock to be tested, FP_NNT x3 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X2 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock fingerprint library middle end component, M_PARM is the middle end component parameter, N_PARM is the non-basic nitrogen parameter; X2 is an integer from 11 to 18; a5 is an integer from 0 to 3, and b5 is an integer from 0 to 2;

[0057] wherein NNT x3 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X3 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock to be tested, FP_NNT x3 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X3 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock fingerprint library heavy end component, H_PARM is the heavy end component parameter, N_PARM is the non-basic nitrogen parameter; X3 is an integer from 21 to 47; a5 is an integer from 0 to 3, and b5 is an integer from 0 to 2;

[0058] 0 = BNT x1 Aa5Nb5 is the mass content of non-basic nitrogen compounds of X3 carbon atoms and a5 aromatic rings of aromatic hydrocarbons and b5 rings of non-basic nitrogen compounds of naphthenic hydrocarbons in the hydrogenation cracking feedstock to be tested, FP_NNT x1Aa5Nb5, L_PARM, BN_PARM) Formula (XVII)

[0059] wherein BNT x1 Aa5Nb5 is the mass content of basic nitrogen compounds of X1 carbon atoms and a5 aromatic rings of aromatics and b5 rings of cycloalkanes in the hydrocracking feedstock to be tested, FP_BNT x1 Aa5Nb5 is the mass content of basic nitrogen compounds of X1 carbon atoms and a5 aromatic rings of aromatics and b5 rings of cycloalkanes in the light end component of the hydrocracking feedstock fingerprint library, L_PARM is the light end component parameter, and BN_PARM is the basic nitrogen parameter; X1 is an integer of 1-10; a5 is an integer of 0-3, and b5 is an integer of 0-2;

[0060] 0 = BNT x2 Aa5Nb5 - f (FP_BNT x2 Aa5Nb5, M_PARM, BN_PARM) Formula (XVIII)

[0061] wherein BNT x2 Aa5Nb5 is the mass content of basic nitrogen compounds of X2 carbon atoms and a5 aromatic rings of aromatics and b5 rings of cycloalkanes in the hydrocracking feedstock to be tested, FP_BNT x2 Aa5Nb5 is the mass content of basic nitrogen compounds of X2 carbon atoms and a5 aromatic rings of aromatics and b5 rings of cycloalkanes in the middle end component of the hydrocracking feedstock fingerprint library, M_PARM is the middle end component parameter, and BN_PARM is the basic nitrogen parameter; X2 is an integer of 11-18; a5 is an integer of 0-3, and b5 is an integer of 0-2;

[0062] 0 = BNT x3 Aa5Nb5 - f (FP_BNT x3 Aa5Nb5, H_PARM, BN_PARM) Formula (XIX)

[0063] wherein BNT x3 Aa5Nb5 is the mass content of basic nitrogen compounds of X3 carbon atoms and a5 aromatic rings of aromatics and b5 rings of cycloalkanes in the hydrocracking feedstock to be tested, FP_BNT x3 Aa5Nb5 is the mass content of basic nitrogen compounds of X3 carbon atoms and a5 aromatic rings of aromatics and b5 rings of cycloalkanes in the heavy end component of the hydrocracking feedstock fingerprint library, H_PARM is the heavy end component parameter, and BN_PARM is the basic nitrogen parameter; X3 is an integer of 21-47; a5 is an integer of 0-3, and b5 is an integer of 0-2.

[0064] In some specific implementations, the matrix relationship further comprises:

[0065] The total of the mass content of the end component one-ring aromatic hydrocarbon and the end component two-ring aromatic hydrocarbon in the to-be-tested hydrocracking feedstock is 100; the total of the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbon and the heavy end component three-ring and four-ring aromatic hydrocarbon in the to-be-tested hydrocracking feedstock is 100; the sum of the mass content of the heavy end component one-ring aromatic hydrocarbon in the heavy end component one-ring and two-ring aromatic hydrocarbon and the mass content of the heavy end component two-ring aromatic hydrocarbon in the heavy end component one-ring and two-ring aromatic hydrocarbon is 100; the sum of the mass content of the heavy end component three-ring aromatic hydrocarbon in the heavy end component three-ring and four-ring aromatic hydrocarbon and the mass content of the heavy end component four-ring aromatic hydrocarbon in the heavy end component three-ring and four-ring aromatic hydrocarbon is 100; the relationship between the sulfide deviation and the molecular composition and content of the sulfide is established; the relationship between the non-alkaline nitride deviation and the molecular composition and content of the non-alkaline nitride is established; the relationship between the alkaline nitride deviation and the molecular composition and content of the alkaline nitride is established; the relationship between the aromatic hydrocarbon deviation and the molecular composition and content of the aromatic hydrocarbon is established; and the relationship between the naphthene deviation and the molecular composition and content of the naphthene is established.

[0066] After the above relationships are established, the matrix parameters in the matrix relationship, such as the light end component parameter L_PARM, the middle end component parameter M_PARM, the heavy end component parameter H_PARM, and the molecular composition and content of the to-be-tested hydrocracking feedstock, are solved by using a nonlinear solving algorithm by combining the above relationships.

[0067] Correspondingly, the application also provides a machine readable storage medium, which stores instructions for causing a machine to execute the method described in the above technical solution.

[0068] The prediction method and prediction model for the molecular composition of the hydrocracking feedstock provided by the application are described in detail below in combination with embodiments.

[0069] (1) Establishing a molecular matrix

[0070] Based on the molecular lumping theory and the hydrocracking product, the hydrocracking components are divided into 88 molecular compositions, i.e., 88 molecular matrices, which include not only hydrocarbons such as alkane, naphthene, and aromatic hydrocarbon, but also sulfur-containing and nitrogen-containing derivatives such as thiophene, pyrrole, and quinoline.

[0071] Due to the bias of the hydrocracking raw material, the molecular composition is extremely complex, and the molecules need to be reasonably classified and named to distinguish the structure and properties of different types of molecules. According to the number of carbon atoms in the molecule, the molecules below C8 are classified as light-end components, and the carbon-hydrogen components are directly named with the number of P atoms; the components containing sulfur and nitrogen are named with s at the beginning. C9-C18 molecules are classified as middle-end components, named with m at the beginning, among which C14 molecules are named with ml at the beginning, and C18 molecules are named with mh at the beginning. C21-C28 molecules are classified as heavy-end components, and non-alkane components are named with h at the beginning. C35-C47 molecules are vacuum components, and non-alkane components are named with v at the beginning.

[0072] According to the reaction kinetics characteristics and the needs of the actual production device, the division of 88 molecular components is shown in Table 1:

[0073] Table 1 Classification of molecular components of hydrocracking components in the application

[0074]

[0075] Among them, 14 alkanes are divided according to the number of carbon atoms, including C1 to C10, C14, C18, C26, and C47, which are assumed to be n-alkanes, and are named as P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, P14, P18, P26, and P47, respectively. P represents alkane, and the number represents the number of carbon atoms.

[0076] Cycloalkanes: 19, according to the number of carbon atoms and structure classification, the number of carbon atoms including C6 to C10 and C14, C18, C21, C47. Structurally divided into 4 categories: monocyclic, bicyclic, tricyclic, tetracyclic. Among them, C6-C9 is monocyclic, C10 is bicyclic, C14, C18 is divided into monocyclic, bicyclic, tricyclic, C21, C47 is divided into monocyclic, bicyclic, tricyclic, tetracyclic; among them, the light end component is named as N6, N7, N8, N9, N10, respectively, wherein the number represents the number of carbon atoms; the middle end component is named as mlN1, mlN2, mlN3, mhN1, mhN2, mhN3, respectively, wherein the number represents the number of rings in the alkane ring, for example, 1 represents monocyclic, 2 represents bicyclic, 3 represents tricyclic, ml represents the light component in the middle end component, for example, the component with carbon atom number 14, mh represents the heavy component in the middle end component, for example, the component with carbon atom number 18; the heavy end component is named as hN1, hN2, hN3, hN4, vN1, vN2, vN3, vN4, respectively, wherein the number represents the number of rings in the alkane ring, for example, 1 represents monocyclic, 2 represents bicyclic, 3 represents tricyclic, 4 represents tetracyclic, h represents the heavy end component, the carbon atom number is 21-28, for example, the component with carbon atom number 21, v represents the vacuum component, the carbon atom number is 35-47, for example, the component with carbon atom number 47.

[0077] Aromatics: 37, classified according to carbon atom number and structure, carbon atom number includes C6 to C10 and C14, C18, C21, C47. Structurally classified into 10 categories: benzene, tetrahydronaphthalene, naphthalene, monocyclic aromatic hydrocarbon and bicyclic alkane, bicyclic aromatic hydrocarbon and monocyclic alkane, tricyclic aromatic hydrocarbon, fluorene, tetracyclic aromatic hydrocarbon, monocyclic aromatic hydrocarbon and tricyclic alkane, bicyclic aromatic hydrocarbon and bicyclic alkane; among them, the light end component is named as A6, A7, A8, A9, A10 respectively, wherein the number represents the number of carbon atoms; The middle component is named as: mlA1, mlAN, mlA2, mlAN2, mlA2N, mlANA, mhA1, mhAN, mhA2, mhAN2, mhA2N, mhANA respectively, wherein A represents aromatic hydrocarbon, the number after A represents the number of rings in aromatic hydrocarbon, for example A2 represents bicyclic aromatic hydrocarbon; N represents cycloalkane, the number after N represents the number of rings in cycloalkane, for example N2 represents bicyclic alkane, AN2 represents monocyclic aromatic hydrocarbon and bicyclic alkane, ml represents the light component in the middle component, for example the component with 14 carbon atoms, mh represents the heavy component in the middle component, for example the component with 18 carbon atoms; The heavy end component is named as: VA1, vAN, vA2, vAN2, vA2N, vA3, VANA, vA4, vAN3, vA2N2 respectively; wherein A represents aromatic hydrocarbon, the number after A represents the number of rings in aromatic hydrocarbon, for example A2 represents bicyclic aromatic hydrocarbon, N represents cycloalkane, mainly cyclohexane or its polycyclic alkane, the number after N represents the number of rings in cycloalkane, for example N2 represents bicyclic alkane, AN2 represents monocyclic aromatic hydrocarbon and bicyclic alkane, h represents the heavy end component, the carbon atom number is 35~47, for example the component with 21 carbon atoms, v represents the vacuum component, the carbon atom number is 35~47, for example the component with 47 carbon atoms.

[0078] Sulfur-containing components: 13, according to the number of carbon atoms and structure classification, the number of carbon atoms including C4, C8, C10, C12, C14, C21, C28, C47. Structurally divided into three categories: thiophene, ring sulfur, aromatic hydrocarbon and thiophene; Among them, the light end component is named sAS, sS8, sASA respectively, wherein s represents the light end component, the number of carbon atoms is 1~8, AS represents thiophene, S represents sulfide, A represents aromatic hydrocarbon, and the number after S represents the number of carbon atoms, and ASA represents aromatic hydrocarbons and thiophene; The middle component is named: mASA, mASN, mS12, mASAN, mASA2 respectively, wherein m represents the middle component, the number of carbon atoms is 9~18, AS represents thiophene, S represents sulfide, A represents aromatic hydrocarbon, N represents cycloalkane, mainly cyclohexane or its polycycloalkane, and the number after S represents the number of carbon atoms, and the number after A represents the number of rings in the aromatic hydrocarbon, for example, mASAN represents thiophene and aromatic hydrocarbon and cycloalkane; The heavy end component is named: hASAN, hASA2, hS28, vASA2N, vASA3 respectively, wherein h represents the heavy end component, the number of carbon atoms is 21~28, for example, the component with 21 carbon atoms, v represents the vacuum component, the number of carbon atoms is 35~47, for example, the component with 47 carbon atoms, AS represents thiophene, S represents sulfide, A represents aromatic hydrocarbon, and N represents cycloalkane, S represents the number of carbon atoms, and A represents the number of rings in the aromatic hydrocarbon, for example, vASA2N represents thiophene and bicyclic aromatic hydrocarbon and cycloalkane.

[0079] Nitrogen-containing components: 10, according to the number of carbon atoms and structure classification, the number of carbon atoms including C4, C9, C21, C35, C47. Structurally divided into four categories: pyrrole, quinoline, phenanthridine, carbazole; Classified by properties: non-basic nitrogen compounds, namely ordinary nitrogen compounds and basic nitrogen compounds. Among them, the non-basic nitrogen compounds include sNNt, mNNtA, hNNtA2, vNNtA3, wherein s represents the light end component, the number of carbon atoms is 1~8, m represents the middle component, the number of carbon atoms is 9~18, h represents the heavy end component, the number of carbon atoms is 21~28, v represents the vacuum component, the number of carbon atoms is 35~47, NNT represents non-basic nitrogen compounds, A represents aromatic hydrocarbon, and the number after A represents the number of rings in the aromatic hydrocarbon; Basic nitrogen compounds (BNt) include sBNt, mBNtN, mBNtA, hBNtAN, hBNtA2 and vBNtA2N, wherein s represents the light end component, the number of carbon atoms is 1~8, m represents the middle component, the number of carbon atoms is 9~18, h represents the heavy end component, the number of carbon atoms is 21~28, v represents the vacuum component, the number of carbon atoms is 35~47, BNT represents basic nitrogen compounds, A represents aromatic hydrocarbon, and the number after A represents the number of rings in the aromatic hydrocarbon, N represents cycloalkane, mainly cyclohexane or its polycycloalkane.

[0080] (2) Construction of molecular fingerprint library

[0081] Based on the established molecular matrix, fingerprint libraries of light vacuum gas oil, heavy vacuum gas oil, light coking gas oil, heavy coking gas oil, catalytic cracking heavy cycle oil and hydrocracking tail oil are constructed, which include the fingerprint library of the molecular composition and measurable property parameters of light vacuum gas oil, the fingerprint library of the molecular composition and measurable property parameters of heavy vacuum gas oil, the fingerprint library of the molecular composition and measurable property parameters of light coking gas oil, the fingerprint library of the molecular composition and measurable property parameters of heavy coking gas oil, the fingerprint library of the molecular composition and measurable property parameters of catalytic cracking heavy cycle oil and the fingerprint library of the molecular composition and measurable property parameters of hydrocracking tail oil. The measurable property parameters include distillation curve parameters, density or specific gravity parameters, sulfur content parameters, nitrogen content parameters, basic nitrogen content parameters and bromine value parameters.

[0082] (3) Establishing a feedstock prediction model based on the molecular fingerprint library

[0083] After the molecular fingerprint library is constructed, a feedstock prediction model is established based on the molecular fingerprint library, which includes the measurable properties of the to-be-tested hydrocracking feedstock and the molecular composition, measurable properties and matrix relationship between the molecular composition and the measurable properties in the fingerprint library constructed in step (2).

[0084] In some specific implementations, the feedstock prediction model includes a light-end component prediction model, a middle-end component prediction model and a heavy-end component prediction model.

[0085] The light-end component prediction model is actually a light-end component correlation relationship, as follows:

[0086] 0 = P6 - f(FP_P6, L_PARM) (1)

[0087] Wherein, P6 is the mass content of P6 component in the to-be-tested feedstock; f(FP_P6, L_PARM) is a functional relationship between the mass content of P6 component in the fingerprint library and the light-end component parameter, FP_P6 is the mass content of P6 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light-end component parameter of the corresponding fingerprint library.

[0088] 0 = N6 - f(FP_N6, L_PARM) (2)

[0089] Wherein, N6 is the mass content of N6 component in the to-be-tested feedstock; f(FP_N6, L_PARM) is a functional relationship between the mass content of N6 component in the fingerprint library and the light-end component parameter, FP_N6 is the mass content of N6 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light-end component parameter of the corresponding fingerprint library.

[0090] 0 = A6 - f(FP_A6, L_PARM) (3)

[0091] wherein A6 is the mass content of A6 component in the raw material to be tested; f(FP_A6, L_PARM) is the functional relationship between the mass content of A6 component in the fingerprint library and the light end component parameter, FP_A6 is the mass content of A6 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter of the corresponding fingerprint library.

[0092] 0 = P7 - f(FP_P7, L_PARM) (4)

[0093] wherein P7 is the mass content of P7 component in the raw material to be tested; f(FP_P7, L_PARM) is the functional relationship between the mass content of P7 component in the fingerprint library and the light end component parameter, FP_P7 is the mass content of P7 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter of the corresponding fingerprint library.

[0094] 0 = N7 - f(FP_N7, L_PARM) (5)

[0095] wherein N7 is the mass content of N7 component in the raw material to be tested; f(FP_N7, L_PARM) is the functional relationship between the mass content of N7 component in the fingerprint library and the light end component parameter, FP_N7 is the mass content of N7 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter of the corresponding fingerprint library.

[0096] 0 = A7 - f(FP_A7, L_PARM) (6)

[0097] wherein A7 is the mass content of A7 component in the raw material to be tested; f(FP_A7, L_PARM) is the functional relationship between the mass content of A7 component in the fingerprint library and the light end component parameter, FP_A7 is the mass content of A7 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter of the corresponding fingerprint library.

[0098] 0 = sAS - f(FP_sAS, L_PARM, S_PARM) (7)

[0099] Wherein, sAS is the mass content of sAS component in the raw material to be tested; f(FP_sAS, L_PARM, S_PARM) is the functional relationship between the mass content of sAS component, light end component parameter and sulfur parameter in the fingerprint library, FP_sAS is the mass content of sAS component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library, and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0100] 0 = sBNt - f(FP_sBNt, L_PARM, BN_PARM) (8)

[0101] Wherein, sBNt is the mass content of sBNt component in the raw material to be tested; f(FP_sBNt, L_PARM, BN_PARM) is the functional relationship between the mass content of sBNt component, light end component parameter and basic nitrogen parameter in the fingerprint library, FP_sBNt is the mass content of sBNt component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library, and BN_PARM is the basic nitrogen parameter in the corresponding fingerprint library.

[0102] 0 = P8 - f(FP_P8, L_PARM) (9)

[0103] Wherein, P8 is the mass content of P8 component in the raw material to be tested; f(FP_P8, L_PARM) is the functional relationship between the mass content of P8 component and light end component parameter in the fingerprint library, FP_P8 is the mass content of P8 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0104] 0 = N8 - f(FP_N8, L_PARM) (10)

[0105] Wherein, N8 is the mass content of N8 component in the raw material to be tested; f(FP_N8, L_PARM) is the functional relationship between the mass content of N8 component and light end component parameter in the fingerprint library, FP_N8 is the mass content of N8 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0106] 0 = P9 - f(FP_P9, L_PARM) (11)

[0107] Wherein, P9 is the mass content of P9 component in the raw material to be tested; f(FP_P9, L_PARM) is the functional relationship between the mass content of P9 component in the fingerprint library and the light end component parameter, FP_P9 is the mass content of P9 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0108] 0 = sNNt - f(FP_sNNt, L_PARM, S_PARM) (12)

[0109] Wherein, sNNt is the mass content of sNNt component in the raw material to be tested; f(FP_sNNt, L_PARM, S_PARM) is the functional relationship between the mass content of sNNt component in the fingerprint library, the light end component parameter and the sulfur parameter, FP_sNNt is the mass content of sNNt component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library, and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0110] 0 = A8 - f(FP_A8, L_PARM) (13)

[0111] Wherein, A8 is the mass content of A8 component in the raw material to be tested; f(FP_A8, L_PARM) is the functional relationship between the mass content of A8 component in the fingerprint library and the light end component parameter, FP_A8 is the mass content of A8 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0112] 0 = N9 - f(FP_N9, L_PARM) (14)

[0113] Wherein, N9 is the mass content of N9 component in the raw material to be tested; f(FP_N9, L_PARM) is the functional relationship between the mass content of N9 component in the fingerprint library and the light end component parameter, FP_N9 is the mass content of N9 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0114] 0 = sNNt - f(FP_sS8, L_PARM, S_PARM) (15)

[0115] Wherein, sNNt is the mass content of sS8 component in the raw material to be tested; f(FP_sS8, L_PARM, S_PARM) refers to the functional relationship between the mass content of sS8 component, light end component parameter and sulfur parameter in the fingerprint library, FP_sS8 is the mass content of sS8 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library, and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0116] 0=A9-f(FP_A9, L_PARM) (16)

[0117] Wherein, A9 is the mass content of A9 component in the raw material to be tested; f(FP_A9, L_PARM) refers to the functional relationship between the mass content of A9 component and the light end component parameter in the fingerprint library, FP_A9 is the mass content of A9 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0118] 0=P10-f(FP_P10, L_PARM) (17)

[0119] Wherein, P10 is the mass content of P10 component in the raw material to be tested; f(FP_P10, L_PARM) refers to the functional relationship between the mass content of P10 component and the light end component parameter in the fingerprint library, FP_P10 is the mass content of P10 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0120] 0=N10-f(FP_N10, L_PARM) (18)

[0121] Wherein, N10 is the mass content of N10 component in the raw material to be tested; f(FP_N10, L_PARM) refers to the functional relationship between the mass content of N10 component and the light end component parameter in the fingerprint library, FP_N10 is the mass content of N10 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0122] 0=A10-f(FP_A10, L_PARM) (19)

[0123] Wherein, A10 is the mass content of A10 component in the raw material to be tested; f(FP_A10, L_PARM) is the functional relationship between the mass content of A10 component in the fingerprint library and the light end component parameter, FP_A10 is the mass content of A10 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library.

[0124] 0 = sASA - f(FP_sASA, L_PARM, S_PARM) (20)

[0125] Wherein, sASA is the mass content of sASA component in the raw material to be tested; f(FP_sASA, L_PARM, S_PARM) is the functional relationship between the mass content of sASA component in the fingerprint library, the light end component parameter and the sulfur parameter, FP_sASA is the mass content of sASA component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; L_PARM is the light end component parameter in the corresponding fingerprint library, and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0126] Wherein, the middle end component prediction model is actually the correlation of the middle end component, as follows:

[0127] 0 = mBNtN - f(FP_mBNtN, M_PARM, BN_PARM) (21)

[0128] Wherein, mBNtN is the mass content of mBNtN component in the raw material to be tested; f(FP_mBNtN, M_PARM, BN_PARM) is the functional relationship between the mass content of mBNtN component in the fingerprint library, the middle end component parameter and the basic nitrogen parameter, FP_mBNtN is the mass content of mBNtN component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle end component parameter in the corresponding fingerprint library, and BN_PARM is the basic nitrogen parameter in the corresponding fingerprint library.

[0129] 0 = mBNtA - f(FP_mBNtA, M_PARM, BN_PARM) (22)

[0130] Wherein, mBNtA is the mass content of mBNtA component in the raw material to be tested; f(FP_mBNtA, M_PARM, BN_PARM) is the functional relationship between the mass content of mBNtA component in the fingerprint library, the middle end component parameter and the basic nitrogen parameter, FP_mBNtA is the mass content of mBNtA component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle end component parameter in the corresponding fingerprint library, and BN_PARM is the basic nitrogen parameter in the corresponding fingerprint library.

[0131] 0 = mASN - f(FP_mASN, M_PARM, S_PARM) (23)

[0132] wherein mASN is the mass content of mASN component in the raw material to be tested; f(FP_mASN, M_PARM, S_PARM) is the functional relationship between the mass content of mASN component in the fingerprint library, the middle-end component parameter and the sulfur parameter, FP_mASN is the mass content of mASN component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library, and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0133] 0 = P14 - f(FP_P14, M_PARM) (24)

[0134] wherein P14 is the mass content of P14 component in the raw material to be tested; f(FP_P14, M_PARM) is the functional relationship between the mass content of P14 component in the fingerprint library and the middle-end component parameter, FP_P14 is the mass content of P14 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library.

[0135] 0 = mASA - f(FP_mASA, M_PARM, S_PARM) (25)

[0136] wherein mASA is the mass content of mASA component in the raw material to be tested; f(FP_mASA, M_PARM, S_PARM) is the functional relationship between the mass content of mASA component in the fingerprint library and the middle-end component parameter and the sulfur parameter, FP_mASA is the mass content of mASA component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library, and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0137] 0 = mlN1 - f(FP_mlN1, M_PARM, CN_PARM) (26)

[0138] wherein mlN1 is the mass content of mlN1 component in the raw material to be tested; f(FP_mlN1, M_PARM, CN_PARM) is the functional relationship between the mass content of mlN1 component in the fingerprint library and the middle-end component parameter and the naphthene parameter, FP_mlN1 is the mass content of mlN1 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library, and CN_PARM is the naphthene parameter in the corresponding fingerprint library.

[0139] 0 = mlA1 - f(FP_mlA1, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) (27)

[0140] wherein mlA1 is the mass content of mlA1 component in the raw material to be tested; f(FP_mlA1, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) is the functional relationship between the mass content of mlA1 component in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the mass content of aromatic hydrocarbon in the middle-end component in the fingerprint library, the mass content of monocyclic aromatic hydrocarbon in the middle-end component in the fingerprint library, and the mass content of monocyclic aromatic hydrocarbon in the middle-end component in the raw material to be tested; FP_mlA1 is the mass content of mlA1 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library; CA_PARM is the aromatic hydrocarbon parameter in the corresponding fingerprint library; FP_TOT_PCT_MAR is the mass content of aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which is calculated from the molecular composition in the fingerprint library; FP_TOT_PCT_AR1_M is the mass content of monocyclic aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which is calculated from the molecular composition in the fingerprint library; and PCT_AR1_M is the mass content of monocyclic aromatic hydrocarbon in the middle-end component in the raw material to be tested.

[0141] 0 = mS12 - f(FP_mS12, M_PARM, S_PARM) (28)

[0142] wherein mS12 is the mass content of mS12 component in the raw material to be tested; f(FP_mS12, M_PARM, S_PARM) is the functional relationship between the mass content of mS12 component in the fingerprint library and the middle-end component parameters and the sulfur parameters; FP_mS12 is the mass content of mS12 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library; and S_PARM is the sulfur parameter in the corresponding fingerprint library.

[0143] 0 = mNNtA - f(FP_mNNtA, M_PARM, N_PARM) (29)

[0144] wherein, mNNtA is the mass content of mNNtA component in the raw material to be tested; f(FP_mNNtA, M_PARM, N_PARM) is the functional relationship between the mass content of mNNtA component in the fingerprint library and the middle-end component parameter and the non-basic nitrogen parameter, FP_mNNtA is the mass content of mNNtA component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library, and N_PARM is the non-basic nitrogen parameter in the corresponding fingerprint library.

[0145] 0 = mlN2 - f(FP_mlN2, M_PARM, CN_PARM) (30)

[0146] wherein, mlN2 is the mass content of mlN2 component in the raw material to be tested; f(FP_mlN2, M_PARM, CN_PARM) is the functional relationship between the mass content of mlN2 component in the fingerprint library and the middle-end component parameter and the naphthene parameter, FP_mlN2 is the mass content of mlN2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library, and CN_PARM is the naphthene parameter in the corresponding fingerprint library.

[0147] 0 = mlN3 - f(FP_mlN3, M_PARM, CN_PARM) (31)

[0148] wherein, mlN3 is the mass content of mlN3 component in the raw material to be tested; f(FP_mlN3, M_PARM, CN_PARM) is the functional relationship between the mass content of mlN3 component in the fingerprint library and the middle-end component parameter and the naphthene parameter, FP_mlN3 is the percentage of mlN3 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library, and CN_PARM is the naphthene parameter in the corresponding fingerprint library.

[0149] 0 = mlAN - f(FP_mlAN, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) (32)

[0150] Where mlAN is the mass content of the mlAN component in the test raw material; f(FP_mlAN, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) is the functional relationship between the mass content of the mlAN component in the fingerprint library and the parameters of the mid-terminal components, aromatics, cycloalkanes, the mass content of aromatics in the mid-terminal components of the fingerprint library, the mass content of monocyclic aromatics in the mid-terminal components of the fingerprint library as a percentage of the total aromatics in the mid-terminal components, and the mass content of monocyclic aromatics in the mid-terminal components of the test raw material as a percentage of the total aromatics in the mid-terminal components. mlAN is the percentage of the mlAN component in the corresponding fingerprint library, calculated from the molecular composition of the corresponding fingerprint library; M_PARM is the mid-component parameter in the corresponding fingerprint library, CA_PARM is the aromatic parameter in the corresponding fingerprint library, CN_PARM is the cycloalkane parameter in the corresponding fingerprint library; FP_TOT_PCT_MAR is the aromatic mass content of the mid-component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_M is the monocyclic aromatic content of the mid-component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_M is the percentage of monocyclic aromatic in the mid-component in the total aromatic content of the mid-component in the test raw material.

[0151] 0=mlA2-f(FP_mlA2,M_PARM,CA_PARM,FP_TOT_PCT_MAR,FP_TOT_PCT_AR2_M,PCT_AR2_M)(33)

[0152] Where, mlA2 is the mass content of the mlA2 component in the test raw material; f(FP_ mlA2, M_PARM, CA_PARM,FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M,PCT_AR2_M) is the functional relationship between the mass content of the mlA2 component in the fingerprint library and the parameters of the mid-range components, the aromatic parameters, the mass content of aromatics in the mid-range components of the fingerprint library, the mass content of bicyclic aromatics in the mid-range components of the fingerprint library as a percentage of the total aromatics in the mid-range components, and the mass content of bicyclic aromatics in the mid-range components of the test raw material as a percentage of the total aromatics in the mid-range components. mlA2 is the mass content of the mlA2 component in the corresponding fingerprint library, calculated from the molecular composition of the corresponding fingerprint library; M_PARM is the mid-component parameter in the corresponding fingerprint library, and CA_PARM is the aromatic parameter in the corresponding fingerprint library; FP_TOT_PCT_MAR is the aromatic mass content of the mid-component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M is the bicyclic aromatic content of the mid-component in the corresponding fingerprint library as a percentage of the total aromatic content of the mid-component, which can be obtained from the molecular composition of the fingerprint library; PCT_AR2_M is the bicyclic aromatic content of the mid-component in the raw material to be tested as a percentage of the total aromatic content of the mid-component.

[0153] 0 = mlAN2 - f(FP_mlAN2, M_PARM, CA_PARM, CN_PARM, P_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) (34)

[0154] wherein mlAN2 is the mass content of mlAN2 component in the raw material to be tested; f(FP_mlAN2, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) refers to the functional relationship between the mass content of mlAN2 component in the fingerprint library and the middle component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of aromatic hydrocarbon in the middle component of the fingerprint library, the mass content of naphthenic hydrocarbon in the middle component of the fingerprint library, and the mass content of naphthenic hydrocarbon in the middle component of the raw material to be tested; FP_mlAN2 is the mass content of mlAN2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_MAR is the mass content of aromatic hydrocarbon in the middle component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_M is the mass content of naphthenic hydrocarbon in the middle component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_M is the mass content of naphthenic hydrocarbon in the middle component of the raw material to be tested.

[0155] 0 = P18 - f(FP_P18, M_PARM) (35)

[0156] wherein P18 is the mass content of P18 component in the raw material to be tested; f(FP_P18, M_PARM) refers to the functional relationship between the mass content of P18 component in the fingerprint library and the middle component parameters; FP_P18 is the mass content of P18 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle component parameter.

[0157] 0 = mlA2N - f(FP_mlA2N, M_PARM, CA_PARM, CN_PARM, P_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) (36)

[0158] wherein mlA2N is the mass content of mlA2N component in the raw material to be tested; f(FP_mlA2N, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) refers to the functional relationship between the mass content of mlA2N component in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the naphthene parameters, the mass content of aromatic hydrocarbon in the middle-end component in the fingerprint library, the mass content of diaromatic hydrocarbon in the middle-end component in the fingerprint library in the total mass content of aromatic hydrocarbon in the middle-end component, and the mass content of diaromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of aromatic hydrocarbon in the middle-end component; FP_mlA2N is the mass content of mlA2N component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library; CA_PARM is the aromatic hydrocarbon parameter in the corresponding fingerprint library; CN_PARM is the naphthene parameter in the corresponding fingerprint library; FP_TOT_PCT_MAR is the mass content of aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which can be obtained from the molecular composition in the fingerprint library; FP_TOT_PCT_AR2_M is the mass content of diaromatic hydrocarbon in the middle-end component in the corresponding fingerprint library in the total mass content of aromatic hydrocarbon in the middle-end component, which can be obtained from the molecular composition in the fingerprint library; and PCT_AR2_M is the mass content of diaromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of aromatic hydrocarbon in the middle-end component.

[0159] 0 = mhN1 - f(FP_mhN1, M_PARM, CN_PARM) (37)

[0160] wherein mhN1 is the mass content of mhN1 component in the raw material to be tested; f(FP_mhN1, M_PARM, CN_PARM) refers to the functional relationship between the mass content of mhN1 component in the fingerprint library and the middle-end component parameters and the naphthene parameters; FP_mhN1 is the mass content of mhN1 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the middle-end component parameter in the corresponding fingerprint library; and CN_PARM is the naphthene parameter in the corresponding fingerprint library.

[0161] 0 = mhA1 - f(FP_mhA1, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) (38)

[0162] wherein, mhlA1is the mass content of the component mhA1in the raw material to be tested; f(FP_mhA1, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) refers to the functional relationship between the mass content of the component mhA1in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the mass content of the aromatic hydrocarbon in the middle-end component in the fingerprint library, the mass content of the one-ring aromatic hydrocarbon in the middle-end component in the fingerprint library, and the mass content of the one-ring aromatic hydrocarbon in the middle-end component in the raw material to be tested; FP_mhA1is the mass content of the corresponding component mhA1in the fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding middle-end component parameter in the fingerprint library; CA_PARM is the corresponding aromatic hydrocarbon parameter in the fingerprint library; FP_TOT_PCT_MAR is the mass content of the aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which can be obtained from the molecular composition in the fingerprint library; FP_TOT_PCT_AR1_M is the mass content of the one-ring aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which can be obtained from the molecular composition in the fingerprint library; and PCT_AR1_M is the mass content of the one-ring aromatic hydrocarbon in the middle-end component in the raw material to be tested.

[0163] 0 = mlANA - f(FP_mlANA, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) (39)

[0164] wherein mlANA is the mass content of mlANA component in the raw material to be tested; f(FP_mlANA, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) refers to the functional relationship between the mass content of mlANA component in the fingerprint library and the middle-end component parameters, the aromatic parameter, the naphthene parameter, the mass content of aromatic in the middle-end component of the fingerprint library, the mass content of diaromatic in the middle-end component of the fingerprint library accounting for the total mass content of aromatic in the middle-end component, and the mass content of diaromatic in the middle-end component of the raw material to be tested accounting for the total mass content of aromatic in the middle-end component; FP_mlANA is the mass content of mlANA component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, CA_PARM is the corresponding fingerprint library aromatic parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter; FP_TOT_PCT_MAR is the mass content of aromatic in the middle-end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M is the mass content of diaromatic in the middle-end component of the corresponding fingerprint library accounting for the total mass content of aromatic in the middle-end component, which can be obtained from the molecular composition of the fingerprint library; and PCT_AR2_M is the mass content of diaromatic in the middle-end component of the raw material to be tested accounting for the total mass content of aromatic in the middle-end component.

[0165] 0 = mhN2 - f(FP_mhN2, M_PARM, CN_PARM) (40)

[0166] wherein mhN2 is the mass content of mhN2 component in the raw material to be tested; f(FP_mhN2, M_PARM, CN_PARM) refers to the functional relationship between the mass content of mhN2 component in the fingerprint library and the middle-end component parameters and the naphthene parameter; FP_mhN2 is the mass content of mhN2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter.

[0167] 0 = mhN3 - f(FP_mhN3, M_PARM, CN_PARM) (41)

[0168] wherein mhN3 is the mass content of mhN3 component in the raw material to be tested; f(FP_mhN3, M_PARM, CN_PARM) refers to the functional relationship between the mass content of mhN3 component in the fingerprint library and the middle-end component parameters and the naphthene parameter; FP_mhN3 is the mass content of mhN3 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter.

[0169] 0 = mhAN - f(FP_mhAN, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) (42)

[0170] wherein, mhAN is the mass content of mhAN component in the raw material to be tested; f(FP_mhAN, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR1_M, PCT_AR1_M) refers to the functional relationship between the mass content of mhAN component in the fingerprint library and the middle component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of aromatic hydrocarbon in the middle component of the fingerprint library, the mass content of one-ring aromatic hydrocarbon in the middle component of the fingerprint library accounting for the total mass content of aromatic hydrocarbon in the middle component, and the mass content of one-ring aromatic hydrocarbon in the middle component of the raw material to be tested accounting for the total mass content of aromatic hydrocarbon in the middle component; FP_mhAN is the mass content of mhAN component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_MAR is the mass content of aromatic hydrocarbon in the middle component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_M is the mass content of one-ring aromatic hydrocarbon in the middle component of the corresponding fingerprint library accounting for the total mass content of aromatic hydrocarbon in the middle component, which can be obtained from the molecular composition of the fingerprint library; and PCT_AR1_M is the mass content of one-ring aromatic hydrocarbon in the middle component of the raw material to be tested accounting for the total mass content of aromatic hydrocarbon in the middle component.

[0171] 0 = mASAN - f(FP_mASAN, M_PARM, S_PARM) (43)

[0172] wherein, mASAN is the mass content of mASAN component in the raw material to be tested; f(FP_mASAN, M_PARM, S_PARM) refers to the functional relationship between the mass content of mASAN component in the fingerprint library and the middle component parameters and the sulfur parameters; FP_mASAN is the mass content of mASAN component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle component parameter, and S_PARM is the corresponding fingerprint library sulfur parameter.

[0173] 0 = mhA2 - f(FP_mhA2, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) (44)

[0174] wherein, mhA2 is the mass content of the mhA2 component in the raw material to be tested; f(FP_mhA2, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) refers to the functional relationship between the mass content of the mhA2 component in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the mass content of the aromatic hydrocarbon in the middle-end component in the fingerprint library, the mass content of the diaromatic hydrocarbon in the middle-end component in the fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, and the mass content of the diaromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component; FP_mhA2 is the mass content of the corresponding mhA2 component in the fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_MAR is the mass content of the aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M is the mass content of the diaromatic hydrocarbon in the middle-end component in the corresponding fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, which can be obtained from the molecular composition of the fingerprint library; PCT_AR2_M is the mass content of the diaromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component.

[0175] 0 = mhA2 - f(FP_mhA2, M_PARM, CA_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) (45)

[0176] wherein, mhAN2 is the mass content of the mhAN2 component in the raw material to be tested; f(FP_mhAN2, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) refers to the functional relationship between the mass content of the mhAN2 component in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the naphthene parameters, the mass content of the aromatic hydrocarbon in the middle-end component of the fingerprint library, the mass content of the diaromatic hydrocarbon in the middle-end component of the fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, and the mass content of the diaromatic hydrocarbon in the middle-end component of the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component; FP_mhAN2 is the mass content of the corresponding mhAN2 component in the fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter; FP_TOT_PCT_MAR is the mass content of the aromatic hydrocarbon in the middle-end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M is the mass content of the diaromatic hydrocarbon in the middle-end component of the corresponding fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, which can be obtained from the molecular composition of the fingerprint library; and PCT_AR2_M is the mass content of the diaromatic hydrocarbon in the middle-end component of the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component.

[0177] wherein, the heavy-end component prediction model is actually a heavy-end component correlation relationship, as follows:

[0178] 0 = hN1 - f(FP_hN1, H_PARM, CN_PARM) (46)

[0179] wherein, hN1 is the mass content of the hN1 component in the raw material to be tested; f(FP_hN1, H_PARM, CN_PARM) refers to the functional relationship between the mass content of the hN1 component in the fingerprint library and the heavy-end component parameters and the naphthene parameters; FP_hN1 is the mass content of the corresponding hN1 component in the fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy-end component parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter.

[0180] 0 = hA1 - f(FP_hA1, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (47)

[0181] wherein hA1 is the mass content of the hA1 component in the raw material to be tested; f(FP_hA1, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) is a function relationship between the mass content of the hA1 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the mass content of the aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the one-ring aromatic hydrocarbon in the total aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbon in the raw material to be tested, and the mass content of the one-ring aromatic hydrocarbon in the total one-ring and two-ring aromatic hydrocarbons in the heavy end component of the raw material to be tested, FP_hA1 is the mass content of the hA1 component in the corresponding fingerprint library, which is calculated according to the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_H is the mass content of the one-ring aromatic hydrocarbon in the total aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbon in the raw material to be tested, and FRC_AR1OF1_2 is the mass content of the one-ring aromatic hydrocarbon in the total one-ring and two-ring aromatic hydrocarbons in the heavy end component of the raw material to be tested.

[0182] 0 = hASA2 - f(FP_hASA2, S_PARM) (48)

[0183] wherein hASA2 is the mass content of the hASA2 component in the raw material to be tested; f(FP_hASA2, S_PARM) is a function relationship between the mass content of the hASA2 component in the fingerprint library and the heavy end component parameters and the sulfur parameters, FP_hASA2 is the mass content of the hASA2 component in the corresponding fingerprint library, which is calculated according to the molecular composition of the corresponding fingerprint library; and S_PARM is the corresponding fingerprint library sulfur parameter.

[0184] 0 = hN2 - f(FP_hN2, H_PARM, CN_PARM) (49)

[0185] wherein hN2 is the mass content of the hN2 component in the raw material to be tested; f(FP_hN2, H_PARM, CN_PARM) is a function relationship between the mass content of the hN2 component in the fingerprint library and the heavy end component parameters and the naphthenic hydrocarbon parameters, FP_hN2 is the mass content of the hN2 component in the corresponding fingerprint library, which is calculated according to the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter.

[0186] 0 = hN3 - f(FP_hN3, H_PARM, CN_PARM) (50)

[0187] wherein hN3 is the mass content of hN3 component in the raw material to be tested; f(FP_hN3, H_PARM, CN_PARM) is the functional relationship between the mass content of hN3 component, heavy end component parameter and naphthene parameter in the fingerprint library, FP_hN3 is the mass content of hN3 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter in the corresponding fingerprint library, and CN_PARM is the naphthene parameter in the corresponding fingerprint library.

[0188] 0 = hN4 - f(FP_hN4, H_PARM, CN_PARM) (51)

[0189] wherein hN4 is the mass content of hN4 component in the raw material to be tested; f(FP_hN4, H_PARM, CN_PARM) is the functional relationship between the mass content of hN4 component, heavy end component parameter and naphthene parameter in the fingerprint library, FP_hN4 is the mass content of hN4 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter in the corresponding fingerprint library, and CN_PARM is the naphthene parameter in the corresponding fingerprint library.

[0190] 0 = mhA2N - f(FP_mhA2N, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) (52)

[0191] wherein, mhA2N is the mass content of the mhA2N component in the raw material to be tested; f(FP_mhA2N, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) refers to the functional relationship between the mass content of the mhA2N component in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the naphthene parameters, the mass content of the aromatic hydrocarbon in the middle-end component in the fingerprint library, the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, and the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component; FP_mhA2N is the mass content of the corresponding mhA2N component in the fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter; FP_TOT_PCT_MAR is the mass content of the aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M is the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, which can be obtained from the molecular composition of the fingerprint library; and PCT_AR2_M is the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component.

[0192] 0 = hAN - f(FP_hAN, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (53)

[0193] wherein hAN is the mass content of the hAN component in the raw material to be tested; f(FP_hAN, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1 OF1_2) refers to the functional relationship between the mass content of the hAN component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of the aromatic hydrocarbon of the heavy end component in the fingerprint library, the mass content of the one-ring aromatic hydrocarbon of the heavy end component in the total mass content of the aromatic hydrocarbon of the heavy end component, the mass content of the one-ring and two-ring aromatic hydrocarbons of the heavy end component in the total mass content of the aromatic hydrocarbon of the heavy end component in the raw material to be tested, and the mass content of the one-ring aromatic hydrocarbon of the heavy end component in the raw material to be tested in the total mass content of the one-ring and two-ring aromatic hydrocarbons of the heavy end component; FP_hAN is the mass content of the hAN component in the corresponding fingerprint library, which is calculated according to the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon of the heavy end component in the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_H is the mass content of the one-ring aromatic hydrocarbon of the heavy end component in the total mass content of the aromatic hydrocarbon of the heavy end component in the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the one-ring and two-ring aromatic hydrocarbons of the heavy end component in the total mass content of the aromatic hydrocarbon of the heavy end component in the raw material to be tested; and FRC_AR1 OF1_2 is the mass content of the one-ring aromatic hydrocarbon of the heavy end component in the raw material to be tested in the total mass content of the one-ring and two-ring aromatic hydrocarbons of the heavy end component.

[0194] 0 = m h ANA - f(FP_mh ANA, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) (54)

[0195] wherein, mhANA is the mass content of the mhANA component in the raw material to be tested; f(FP_mhANA, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_AR2_M, PCT_AR2_M) refers to the functional relationship between the mass content of the mhANA component in the fingerprint library and the middle-end component parameters, the aromatic hydrocarbon parameters, the naphthene parameters, the mass content of the aromatic hydrocarbon in the middle-end component in the fingerprint library, the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, and the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component; FP_mhANA is the mass content of the mhANA component in the corresponding fingerprint library, which is calculated according to the molecular composition in the corresponding fingerprint library; M_PARM is the corresponding fingerprint library middle-end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthene parameter; FP_TOT_PCT_MAR is the mass content of the aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M is the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the corresponding fingerprint library in the total mass content of the aromatic hydrocarbon in the middle-end component, which can be obtained according to the molecular composition of the fingerprint library; and PCT_AR2_M is the mass content of the di-cyclic aromatic hydrocarbon in the middle-end component in the raw material to be tested in the total mass content of the aromatic hydrocarbon in the middle-end component.

[0196] 0 = hA2 - f(FP_hA2, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (55)

[0197] wherein hA2 is the mass content of the hA2 component in the raw material to be tested; f(FP_hA2, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) refers to the functional relationship between the mass content of the hA2 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the mass content of the aromatic hydrocarbon in the heavy end component in the fingerprint library, the mass content of the one-ring aromatic hydrocarbon in the heavy end component in the fingerprint library, the mass content of the one-ring and two-ring aromatic hydrocarbons in the heavy end component in the raw material to be tested, and the mass content of the one-ring aromatic hydrocarbon in the heavy end component in the raw material to be tested; FP_hA2 is the mass content of the hA2 component in the corresponding fingerprint library, which is calculated according to the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon in the heavy end component in the corresponding fingerprint library, which can be obtained according to the molecular composition in the fingerprint library; FP_TOT_PCT_AR2_H is the mass content of the two-ring aromatic hydrocarbon in the heavy end component in the corresponding fingerprint library, which can be obtained according to the molecular composition in the fingerprint library; PCT_AR1_2_H is the mass content of the one-ring and two-ring aromatic hydrocarbons in the heavy end component in the raw material to be tested; and FRC_AR2OF1_2 is the mass content of the one-ring aromatic hydrocarbon in the heavy end component in the raw material to be tested.

[0198] 0 = hAN2 - f(FP_hAN2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (56)

[0199] wherein hAN2 is the mass content of the hA1 component in the raw material to be tested; f(FP_hAN2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) is a functional relationship between the mass content of the hAN2 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of the heavy end component aromatic hydrocarbon in the fingerprint library, the mass content of the heavy end component one-ring aromatic hydrocarbon in the total mass content of the heavy end component aromatic hydrocarbon in the fingerprint library, the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total mass content of the heavy end component aromatic hydrocarbons in the raw material to be tested, and the mass content of the heavy end component one-ring aromatic hydrocarbon in the total mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the raw material to be tested; FP_hAN2 is the mass content of the hAN2 component in the corresponding fingerprint library, which is calculated based on the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the heavy end component aromatic hydrocarbon in the corresponding fingerprint library, which is calculated based on the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_H is the mass content of the heavy end component one-ring aromatic hydrocarbon in the total mass content of the heavy end component aromatic hydrocarbon in the corresponding fingerprint library, which is calculated based on the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total mass content of the heavy end component aromatic hydrocarbons in the raw material to be tested; and FRC_AR1OF1_2 is the mass content of the heavy end component one-ring aromatic hydrocarbon in the total mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the raw material to be tested.

[0200] 0 = P26 - f(FP_P26, H_PARM) (57)

[0201] wherein P26 is the mass content of the P26 component in the raw material to be tested; f(FP_P26, H_PARM) is a functional relationship between the mass content of the P26 component in the fingerprint library and the heavy end component parameters; FP_P26 is the mass content of the P26 component in the corresponding fingerprint library, which is calculated based on the molecular composition of the corresponding fingerprint library; and H_PARM is the corresponding fingerprint library heavy end component parameter.

[0202] 0 = hAN2 - f(FP_hAN2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (58)

[0203] wherein hAN2 is the mass content of the hAN2 component in the raw material to be tested; f(FP_hAN2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) refers to the functional relationship between the mass content of the hAN2 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of the heavy end component aromatic hydrocarbons in the fingerprint library, the mass content of the heavy end component one-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the fingerprint library, the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested, and the mass content of the heavy end component one-ring aromatic hydrocarbons in the total one-ring and two-ring aromatic hydrocarbons in the raw material to be tested; FP_hAN2 is the mass content of the hAN2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the heavy end component aromatic hydrocarbons in the corresponding fingerprint library, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR1_H is the mass content of the heavy end component one-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the corresponding fingerprint library, which can be obtained from the fingerprint library molecular composition; PCT_AR1_2_H is the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested; and FRC_AR1OF1_2 is the mass content of the heavy end component one-ring aromatic hydrocarbons in the total one-ring and two-ring aromatic hydrocarbons in the raw material to be tested.

[0204] 0 = hA2N - f(FP_hA2N, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2)(59)

[0205] Wherein, hA2N is the mass content of hA2N component in the raw material to be tested; f(FP_hA2N, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) refers to the functional relationship between the mass content of hA2N component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of heavy end component aromatic hydrocarbon in the fingerprint library, the mass content of heavy end component two-ring aromatic hydrocarbon in the total aromatic hydrocarbon in the heavy end component, the mass content of heavy end component one-ring and two-ring aromatic hydrocarbon in the total aromatic hydrocarbon in the raw material to be tested, and the mass content of heavy end component two-ring aromatic hydrocarbon in the total one-ring and two-ring aromatic hydrocarbon in the raw material to be tested; FP_hA2N is the mass content of hA2N component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; CN_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of heavy end component aromatic hydrocarbon in the corresponding fingerprint library, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR2_H is the mass content of heavy end component two-ring aromatic hydrocarbon in the total aromatic hydrocarbon in the corresponding fingerprint library, which can be obtained from the fingerprint library molecular composition; PCT_AR1_2_H is the mass content of heavy end component one-ring and two-ring aromatic hydrocarbon in the total aromatic hydrocarbon in the raw material to be tested; and FRC_AR2OF1_2 is the mass content of heavy end component two-ring aromatic hydrocarbon in the total one-ring and two-ring aromatic hydrocarbon in the raw material to be tested.

[0206] 0 = hANA - f(FP_hANA, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (60)

[0207] wherein hANA is the mass content of the hANA component in the raw material to be tested; f(FP_hANA, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) refers to the functional relationship between the mass content of the hANA component in the fingerprint library and the heavy end component parameter, the aromatic hydrocarbon parameter, the naphthenic hydrocarbon parameter, the mass content of the heavy end component aromatic hydrocarbon in the fingerprint library, the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the middle end component, the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the heavy end component, and the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the raw material to be tested, FP_hANA is the mass content of the hANA component in the corresponding fingerprint library, which is calculated according to the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the heavy end component aromatic hydrocarbon in the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_H is the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the heavy end component in the corresponding fingerprint library, which can be obtained according to the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the heavy end component in the raw material to be tested, and FRC_AR2OF1_2 is the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the raw material to be tested.

[0208] 0 = hA2N2 - f(FP_hA2N2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (61)

[0209] wherein, hA2N2 is the mass content of hA1 component in the raw material to be tested; f(FP_hA2N2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) refers to the functional relationship between the mass content of hA2N2 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the fingerprint library heavy end component aromatic hydrocarbon mass content, the fingerprint library heavy end component bicyclic aromatic hydrocarbon accounting for the total aromatic hydrocarbon mass content of the middle end component, the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbons accounting for the total aromatic hydrocarbon mass content of the heavy end component in the raw material to be tested, and the mass content of the heavy end component bicyclic aromatic hydrocarbon accounting for the total mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbons in the raw material to be tested, FP_hA2N2 is the mass content of the corresponding hA2N2 component in the fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the corresponding fingerprint library heavy end component aromatic hydrocarbon mass content, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR2_H is the corresponding fingerprint library heavy end component bicyclic aromatic hydrocarbon accounting for the total aromatic hydrocarbon mass content of the heavy end component, which can be obtained from the fingerprint library molecular composition; PCT_AR1_2_H is the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbons accounting for the total aromatic hydrocarbon mass content of the heavy end component in the raw material to be tested, and FRC_AR2OF1_2 is the mass content of the heavy end component bicyclic aromatic hydrocarbon accounting for the total mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbons in the raw material to be tested.

[0210] 0 = hA3 - f(FP_hA3, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR3_H, PCT_AR3_4_H, FRC_AR3OF3_4) (62)

[0211] wherein hA3 is the mass content of the hA3 component in the raw material under test; f(FP_hA3, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR3_H, PCT_AR3_4_H, FRC_AR3OF3_4) is a functional relationship between the mass content of the hA3 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the fingerprint library heavy end component aromatic hydrocarbon mass content, the fingerprint library heavy end component three-ring aromatic hydrocarbons content in the total aromatic hydrocarbons content of the middle end component, the mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons in the total aromatic hydrocarbons content of the heavy end component in the raw material under test, and the mass content of the heavy end component three-ring aromatic hydrocarbons in the total three-ring and four-ring aromatic hydrocarbons content of the heavy end component in the raw material under test; FP_hA3 is the mass content of the hA3 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the corresponding fingerprint library heavy end component aromatic hydrocarbon mass content, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR3_H is the corresponding fingerprint library heavy end component three-ring aromatic hydrocarbons content in the total aromatic hydrocarbons content of the heavy end component, which can be obtained from the fingerprint library molecular composition; PCT_AR3_4_H is the mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons in the total aromatic hydrocarbons content of the heavy end component in the raw material under test; and FRC_AR3OF3_4 is the mass content of the heavy end component three-ring aromatic hydrocarbons in the total three-ring and four-ring aromatic hydrocarbons content of the heavy end component in the raw material under test.

[0212] 0 = hASAN - f(FP_hASAN, H_PARM, S_PARM) (63)

[0213] wherein hASAN is the mass content of the hASAN component in the raw material under test; f(FP_hASAN, H_PARM, S_PARM) is a functional relationship between the mass content of the hASAN component in the fingerprint library and the heavy end component parameters and the sulfur parameters; FP_hASAN is the mass content of the hASAN component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; and S_PARM is the corresponding fingerprint library sulfur parameter.

[0214] 0 = hBNtAN - f(FP_hBNtAN, H_PARM, BN_PARM) (64)

[0215] wherein hBNtAN is the mass content of the hBNtAN component in the raw material to be tested; f(FP_hBNtAN, H_PARM, BN_PARM) is the functional relationship between the mass content of the hBNtAN component in the fingerprint library and the heavy end component parameter and the basic nitrogen parameter, FP_hBNtAN is the mass content of the hBNtAN component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library, and BN_PARM is the basic nitrogen parameter of the corresponding fingerprint library.

[0216] 0 = hS28 - f(FP_hS28, H_PARM, S_PARM) (65)

[0217] wherein hS28 is the mass content of the hS28 component in the raw material to be tested; f(FP_hS28, H_PARM, S_PARM) is the functional relationship between the mass content of the hS28 component in the fingerprint library and the heavy end component parameter and the sulfur parameter, FP_hS28 is the mass content of the hS28 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library, and S_PARM is the sulfur parameter of the corresponding fingerprint library.

[0218] 0 = hASA2 - f(FP_hASAN, H_PARM, S_PARM) (66)

[0219] wherein hASA2 is the mass content of the hS28 component in the raw material to be tested; f(FP_hASA2, H_PARM, S_PARM) is the functional relationship between the mass content of the hASA2 component in the fingerprint library and the heavy end component parameter and the sulfur parameter, FP_hASA2 is the mass content of the hASA2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library, and S_PARM is the sulfur parameter of the corresponding fingerprint library.

[0220] 0 = hBNtA2 - f(FP_hBNtAN, H_PARM, BN_PARM) (67)

[0221] wherein hBNtA2 is the mass content of the hBNtA2 component in the raw material to be tested; f(FP_hBNtA2, H_PARM, BN_PARM) is the functional relationship between the mass content of the hBNtA2 component in the fingerprint library and the heavy end component parameter and the basic nitrogen parameter, FP_hBNtAN is the mass content of the hBNtA2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library, and BN_PARM is the basic nitrogen parameter of the corresponding fingerprint library.

[0222] 0 = hNNtA2 - f(FP_hNNtA2, H_PARM, N_PARM) (68)

[0223] wherein hNNtA2 is the mass content of hNNtA2 component in the raw material to be tested; f(FP_hNNtA2, H_PARM, N_PARM) refers to the functional relationship between the mass content of hNNtA2 component in the fingerprint library and the heavy end component parameter, the non-basic nitrogen parameter, FP_hNNtA2 is the mass content of hNNtA2 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter in the corresponding fingerprint library, and N_PARM is the non-basic nitrogen parameter in the corresponding fingerprint library.

[0224] 0 = hA4 - f(FP_hA4, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR4_H, PCT_AR3_4_H, FRC_AR4OF3_4) (69)

[0225] wherein hA4 is the mass content of hA4 component in the raw material to be tested; f(FP_hA4, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR4_H, PCT_AR3_4_H, FRC_AR4OF3_4) refers to the functional relationship between the mass content of hA4 component in the fingerprint library and the heavy end component parameter, the aromatic hydrocarbon parameter, the fingerprint library heavy end component aromatic hydrocarbon mass content, the fingerprint library heavy end component four-ring aromatic hydrocarbon mass content accounting for the total aromatic hydrocarbon mass content of the middle end component, the mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons in the raw material to be tested accounting for the total aromatic hydrocarbon mass content of the heavy end component, and the mass content of the heavy end component four-ring aromatic hydrocarbon in the raw material to be tested accounting for the total mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons; FP_hA4 is the mass content of hA4 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter in the corresponding fingerprint library, and CA_PARM is the aromatic hydrocarbon parameter in the corresponding fingerprint library; FP_TOT_PCT_HAR is the heavy end component aromatic hydrocarbon mass content in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR4_H is the heavy end component four-ring aromatic hydrocarbon mass content accounting for the total aromatic hydrocarbon mass content of the heavy end component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; PCT_AR3_4_H is the mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons accounting for the total aromatic hydrocarbon mass content of the heavy end component in the raw material to be tested, and FRC_AR4OF3_4 is the mass content of the heavy end component four-ring aromatic hydrocarbon accounting for the total mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons in the raw material to be tested.

[0226] 0 = P47 - f(FP_P47, H_PARM) (70)

[0227] wherein P47 is the mass content of P47 component in the raw material to be tested; f(FP_P47, H_PARM) is the functional relationship between the mass content of P47 component in the fingerprint library and the heavy end component parameter, FP_P47 is the mass content of P47 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter.

[0228] 0 = vN1 - f(FP_vN1, H_PARM, CN_PARM) (71)

[0229] wherein vN1 is the mass content of vN1 component in the raw material to be tested; f(FP_vN1, H_PARM, CN_PARM) is the functional relationship between the mass content of vN1 component in the fingerprint library and the heavy end component parameter, naphthene parameter, FP_vN1 is the mass content of vN1 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CN_PARM is the corresponding fingerprint library naphthene parameter.

[0230] 0 = vA1 - f(FP_vA1, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (72)

[0231] wherein vA1 is the mass content of the hA1 component in the raw material to be tested; f(FP_vA1, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) refers to the functional relationship between the mass content of the vA1 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the fingerprint library heavy end component aromatic hydrocarbon mass content, the fingerprint library heavy end component one-ring aromatic hydrocarbon mass content accounting for the total aromatic hydrocarbon mass content of the middle end component, the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested, and the mass content of the heavy end component one-ring aromatic hydrocarbon in the total mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the raw material to be tested; FP_vA1 is the mass content of the vA1 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the corresponding fingerprint library heavy end component aromatic hydrocarbon mass content, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR1_H is the corresponding fingerprint library heavy end component one-ring aromatic hydrocarbon mass content accounting for the total aromatic hydrocarbon mass content of the heavy end component, which can be obtained from the fingerprint library molecular composition; PCT_AR1_2_H is the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested; and FRC_AR1OF1_2 is the mass content of the heavy end component one-ring aromatic hydrocarbon in the total mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the raw material to be tested.

[0232] 0 = vN2 - f(FP_vN2, H_PARM, CN_PARM) (73)

[0233] wherein vN1 is the mass content of the vN2 component in the raw material to be tested; f(FP_vN2, H_PARM, CN_PARM) refers to the functional relationship between the mass content of the vN2 component in the fingerprint library and the heavy end component parameters and the naphthenic hydrocarbon parameters; FP_vN2 is the mass content of the vN2 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter.

[0234] 0 = vN3 - f(FP_vN3, H_PARM, CN_PARM) (74)

[0235] wherein vN2 is the mass content of the vN1 component in the raw material to be tested; f(FP_vN2, H_PARM, CN_PARM) is the functional relationship between the mass content of the vN2 component in the fingerprint library and the heavy end component parameter, the naphthene parameter, FP_vN2 is the mass content of the vN1 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library, and CN_PARM is the naphthene parameter of the corresponding fingerprint library.

[0236] 0 = vN4 - f(FP_vN4, H_PARM, CN_PARM) (75)

[0237] wherein vN4 is the mass content of the vN4 component in the raw material to be tested; f(FP_vN4, H_PARM, CN_PARM) is the functional relationship between the mass content of the vN4 component in the fingerprint library and the heavy end component parameter, the naphthene parameter, FP_vN4 is the mass content of the vN4 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library, and CN_PARM is the naphthene parameter of the corresponding fingerprint library.

[0238] 0 = vAN - f(FP_vAN, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (76)

[0239] wherein vANis the mass content of the vANcomponent in the raw material to be tested; f(FP_vAN, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) refers to the functional relationship between the mass content of the vANcomponent in the fingerprint library and the heavy end component parameter, the aromatic hydrocarbon parameter, the naphthenic hydrocarbon parameter, the mass content of the aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the monocyclic aromatic hydrocarbon in the total aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the monocyclic and bicyclic aromatic hydrocarbons in the total aromatic hydrocarbons in the heavy end component of the raw material to be tested, and the mass content of the monocyclic aromatic hydrocarbon in the total monocyclic and bicyclic aromatic hydrocarbons in the heavy end component of the raw material to be tested; FP_vANis the mass content of the vANcomponent in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library; CA_PARM is the aromatic hydrocarbon parameter of the corresponding fingerprint library; CN_PARM is the naphthenic hydrocarbon parameter of the corresponding fingerprint library; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_H is the mass content of the monocyclic aromatic hydrocarbon in the total aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the monocyclic and bicyclic aromatic hydrocarbons in the total aromatic hydrocarbons in the heavy end component of the raw material to be tested; and FRC_AR1OF1_2 is the mass content of the monocyclic aromatic hydrocarbon in the total monocyclic and bicyclic aromatic hydrocarbons in the heavy end component of the raw material to be tested.

[0240] 0 = vBNtA2N - f(FP_vBNtA2N, H_PARM, BN_PARM) (77)

[0241] wherein vBNtA2Nis the mass content of the vBNtA2Ncomponent in the raw material to be tested; f(FP_vBNtA2N, H_PARM, BN_PARM) refers to the functional relationship between the mass content of the vBNtA2Ncomponent in the fingerprint library and the heavy end component parameter and the basic nitrogen parameter; FP_vBNtA2Nis the mass content of the vBNtA2Ncomponent in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library; and BN_PARM is the basic nitrogen parameter of the corresponding fingerprint library.

[0242] 0 = vA2 - f(FP_vA2, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (78)

[0243] wherein vA2 is the mass content of the vA2 component in the raw material to be tested; f(FP_vA2, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) refers to the functional relationship between the mass content of the vA2 component in the fingerprint library and the heavy end component parameter, the aromatic hydrocarbon parameter, the mass content of the aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the diaromatic hydrocarbon in the heavy end component of the fingerprint library in the total mass content of the aromatic hydrocarbon in the middle end component, the mass content of the monoaromatic and diaromatic hydrocarbon in the heavy end component of the raw material to be tested in the total mass content of the aromatic hydrocarbon in the heavy end component, and the mass content of the diaromatic hydrocarbon in the heavy end component of the raw material to be tested in the total mass content of the monoaromatic and diaromatic hydrocarbon in the heavy end component; FP_vA2 is the mass content of the vA2 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library; CA_PARM is the aromatic hydrocarbon parameter of the corresponding fingerprint library; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_H is the mass content of the diaromatic hydrocarbon in the heavy end component of the corresponding fingerprint library in the total mass content of the aromatic hydrocarbon in the heavy end component, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the monoaromatic and diaromatic hydrocarbon in the heavy end component of the raw material to be tested in the total mass content of the aromatic hydrocarbon in the heavy end component; and FRC_AR2OF1_2 is the mass content of the diaromatic hydrocarbon in the heavy end component of the raw material to be tested in the total mass content of the monoaromatic and diaromatic hydrocarbon in the heavy end component.

[0244] 0 = hASA2N - f(FP_hASAN, H_PARM, S_PARM) (79)

[0245] wherein hASA2N is the mass content of the hASA2N component in the raw material to be tested; f(FP_hASA2N, H_PARM, S_PARM) refers to the functional relationship between the mass content of the hASA2N component in the fingerprint library and the heavy end component parameter and the sulfur parameter; FP_hASA2N is the mass content of the hASA2N component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the heavy end component parameter of the corresponding fingerprint library; and S_PARM is the sulfur parameter of the corresponding fingerprint library.

[0246] 0 = vAN2 - f(FP_vAN2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (80)

[0247] wherein vAN2 is the mass content of the vAN2 component in the raw material to be tested; f(FP_vAN2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) is a function relationship between the mass content of the vAN2 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic base index, the mass content of the aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the one-ring aromatic hydrocarbon in the heavy end component accounting for the total mass content of the aromatic hydrocarbon in the middle end component, the mass content of the one-ring and two-ring aromatic hydrocarbons in the heavy end component accounting for the total mass content of the aromatic hydrocarbon in the heavy end component in the raw material to be tested, and the mass content of the one-ring aromatic hydrocarbon in the heavy end component in the raw material to be tested accounting for the total mass content of the one-ring and two-ring aromatic hydrocarbons in the heavy end component; FP_vAN2 is the mass content of the vAN2 component in the corresponding fingerprint library, which is calculated according to the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic base parameter; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained according to the molecular composition in the fingerprint library; FP_TOT_PCT_AR1_H is the mass content of the one-ring aromatic hydrocarbon in the heavy end component accounting for the total mass content of the aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained according to the molecular composition in the fingerprint library; PCT_AR1_2_H is the mass content of the one-ring and two-ring aromatic hydrocarbons in the heavy end component accounting for the total mass content of the aromatic hydrocarbon in the heavy end component in the raw material to be tested; and FRC_AR1OF1_2 is the mass content of the one-ring aromatic hydrocarbon in the heavy end component accounting for the total mass content of the one-ring and two-ring aromatic hydrocarbons in the heavy end component in the raw material to be tested.

[0248] 0 = vAN3 - f(FP_vAN3, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) (81)

[0249] wherein vAN3 is the mass content of the hA1 component in the raw material to be tested; f(FP_vAN3, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) refers to the functional relationship between the mass content of the vAN3 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of the heavy end component aromatic hydrocarbons in the fingerprint library, the mass content of the heavy end component one-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the fingerprint library, the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested, and the mass content of the heavy end component one-ring aromatic hydrocarbons in the total one-ring and two-ring aromatic hydrocarbons in the raw material to be tested; FP_vAN3 is the mass content of the hA1 component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the heavy end component aromatic hydrocarbons in the corresponding fingerprint library, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR1_H is the mass content of the heavy end component one-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the corresponding fingerprint library, which can be obtained from the fingerprint library molecular composition; PCT_AR1_2_H is the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested; and FRC_AR1OF1_2 is the mass content of the heavy end component one-ring aromatic hydrocarbons in the total one-ring and two-ring aromatic hydrocarbons in the raw material to be tested.

[0250] 0 = vA2N - f(FP_vA2N, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (82)

[0251] wherein vA2N is the mass content of the vA2N component in the raw material to be tested; f(FP_vA2N, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) refers to the functional relationship between the mass content of the vA2N component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of the aromatic hydrocarbon in the heavy end component of the fingerprint library, the mass content of the bicyclic aromatic hydrocarbon in the heavy end component of the fingerprint library in the total mass content of the aromatic hydrocarbon in the middle end component, the mass content of the monocyclic and bicyclic aromatic hydrocarbon in the heavy end component in the total mass content of the aromatic hydrocarbon in the heavy end component in the raw material to be tested, and the mass content of the bicyclic aromatic hydrocarbon in the heavy end component in the raw material to be tested in the total mass content of the monocyclic and bicyclic aromatic hydrocarbon in the heavy end component; FP_vA2N is the mass content of the vA2N component in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_H is the mass content of the bicyclic aromatic hydrocarbon in the heavy end component of the corresponding fingerprint library in the total mass content of the aromatic hydrocarbon in the heavy end component, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the monocyclic and bicyclic aromatic hydrocarbon in the heavy end component in the total mass content of the aromatic hydrocarbon in the heavy end component in the raw material to be tested, and FRC_AR2OF1_2 is the mass content of the bicyclic aromatic hydrocarbon in the heavy end component in the raw material to be tested in the total mass content of the monocyclic and bicyclic aromatic hydrocarbon in the heavy end component.

[0252] 0 = vANA - f(FP_vANA, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (83)

[0253] wherein vANAis the mass content of the vANAcomponent in the raw material to be tested; f(FP_vANA, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR1_H, PCT_AR1_2_H, FRC_AR1OF1_2) refers to the functional relationship between the mass content of the vANAcomponent in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon parameters, the mass content of the heavy end component aromatic hydrocarbons in the fingerprint library, the mass content of the heavy end component one-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the middle end component, the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested, and the mass content of the heavy end component one-ring aromatic hydrocarbons in the total one-ring and two-ring aromatic hydrocarbons in the raw material to be tested, FP_vANAis the mass content of the vANAcomponent in the corresponding fingerprint library, which is calculated from the molecular composition in the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the heavy end component aromatic hydrocarbons in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_H is the mass content of the heavy end component one-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the heavy end component one-ring and two-ring aromatic hydrocarbons in the total aromatic hydrocarbons in the raw material to be tested, and FRC_AR1OF1_2 is the mass content of the heavy end component one-ring aromatic hydrocarbons in the total one-ring and two-ring aromatic hydrocarbons in the raw material to be tested.

[0254] 0 = vA2N2 - f(FP_vA2N2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) (84)

[0255] wherein vA2N2is the mass content of the vA2N2component in the raw material to be tested; f(FP_vA2N2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR2_H, PCT_AR1_2_H, FRC_AR2OF1_2) is a function relationship between the mass content of the vA2N2component and the heavy end component parameters, the aromatic hydrocarbon parameters, the naphthenic hydrocarbon index, the mass content of the heavy end component aromatic hydrocarbon in the fingerprint library, the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the middle end component, the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the heavy end component, and the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the raw material to be tested, FP_vA2N2is the mass content of the vA2N2component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter, and CN_PARM is the corresponding fingerprint library naphthenic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of the heavy end component aromatic hydrocarbon in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_H is the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the heavy end component in the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; PCT_AR1_2_H is the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the total aromatic hydrocarbon content of the heavy end component in the raw material to be tested, and FRC_AR2OF1_2 is the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbon in the raw material to be tested.

[0256] 0 = vA3 - f(FP_vA3, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR3_H, PCT_AR3_4_H, FRC_AR3OF3_4) (85)

[0257] wherein vA3 is the mass content of the vA3 component in the raw material to be tested; f(FP_vA3, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR3_H, PCT_AR3_4_H, FRC_AR3OF3_4) refers to the functional relationship between the mass content of the vA3 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the mass content of aromatic hydrocarbons in the heavy end component of the fingerprint library, the mass content of tricyclic aromatic hydrocarbons in the heavy end component of the fingerprint library in the total mass content of the middle end component, the mass content of tricyclic and tetracyclic aromatic hydrocarbons in the heavy end component of the raw material to be tested in the total mass content of the heavy end component, and the mass content of tricyclic aromatic hydrocarbons in the heavy end component of the raw material to be tested in the total mass content of tricyclic and tetracyclic aromatic hydrocarbons in the heavy end component; FP_vA3 is the mass content of the vA3 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter; CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the mass content of aromatic hydrocarbons in the heavy end component of the corresponding fingerprint library, which can be obtained from the molecular composition of the fingerprint library; FP_TOT_PCT_AR3_H is the mass content of tricyclic aromatic hydrocarbons in the heavy end component of the corresponding fingerprint library in the total mass content of the heavy end component, which can be obtained from the molecular composition of the fingerprint library; PCT_AR3_4_H is the mass content of tricyclic and tetracyclic aromatic hydrocarbons in the heavy end component of the raw material to be tested in the total mass content of the heavy end component; and FRC_AR3OF3_4 is the mass content of tricyclic aromatic hydrocarbons in the heavy end component of the raw material to be tested in the total mass content of tricyclic and tetracyclic aromatic hydrocarbons in the heavy end component.

[0258] 0 = vA4 - f(FP_vA4, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR4_H, PCT_AR3_4_H, FRC_AR4OF3_4) (86)

[0259] wherein vA4 is the mass content of the hA1 component in the raw material to be tested; f(FP_vA4, H_PARM, CA_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_AR4_H, PCT_AR3_4_H, FRC_AR4OF3_4) refers to the functional relationship between the mass content of the vA4 component in the fingerprint library and the heavy end component parameters, the aromatic hydrocarbon parameters, the fingerprint library heavy end component aromatic hydrocarbon mass content, the fingerprint library heavy end component four-ring aromatic hydrocarbon content in the total aromatic hydrocarbon mass content of the middle end component, the mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons in the total aromatic hydrocarbon of the heavy end component in the raw material to be tested, and the mass content of the heavy end component four-ring aromatic hydrocarbon in the total amount of the heavy end component three-ring and four-ring aromatic hydrocarbons in the raw material to be tested; FP_vA4 is the mass content of the vA4 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, CA_PARM is the corresponding fingerprint library aromatic hydrocarbon parameter; FP_TOT_PCT_HAR is the corresponding fingerprint library heavy end component aromatic hydrocarbon mass content, which can be obtained from the fingerprint library molecular composition; FP_TOT_PCT_AR4_H is the corresponding fingerprint library heavy end component four-ring aromatic hydrocarbon content in the total aromatic hydrocarbon mass content of the heavy end component, which can be obtained from the fingerprint library molecular composition; PCT_AR3_4_H is the mass content of the heavy end component three-ring and four-ring aromatic hydrocarbons in the total aromatic hydrocarbon of the heavy end component in the raw material to be tested, and FRC_AR4OF3_4 is the mass content of the heavy end component four-ring aromatic hydrocarbon in the total amount of the heavy end component three-ring and four-ring aromatic hydrocarbons in the raw material to be tested.

[0260] 0 = vNNtA3 - f(FP_vNNtA3, H_PARM, N_PARM) (87)

[0261] wherein vNNtA3 is the mass content of the vN4 component in the raw material to be tested; f(FP_vNNtA3, H_PARM, N_PARM) refers to the functional relationship between the mass content of the vNNtA3 component in the fingerprint library and the heavy end component parameters, the non-basic nitrogen parameters; FP_vNNtA3 is the mass content of the vNNtA3 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, and N_PARM is the corresponding fingerprint library non-basic nitrogen parameter.

[0262] 0 = vASA3 - f(FP_vASA3, H_PARM, S_PARM) (88)

[0263] Wherein, vASA3 is the mass content of vASA3 component in the raw material to be tested; f(FP_vASA3, H_PARM, S_PARM) is the functional relationship between the mass content of vASA3 component in the fingerprint library and the heavy end component parameter and the sulfur parameter, FP_vASA3 is the mass content of vASA3 component in the corresponding fingerprint library, which is calculated from the molecular composition of the corresponding fingerprint library; H_PARM is the corresponding fingerprint library heavy end component parameter, and S_PARM is the corresponding fingerprint library sulfur parameter.

[0264] Correlation parameter description: L_PARM: light end component parameter; M_PARM: middle end component parameter; H_PARM: heavy end component parameter; CA_PARM: aromatic hydrocarbon parameter; CN_PARM: naphthene parameter; S_PARM: sulfur parameter; N_PARM: non-basic nitrogen parameter; BN_PARM: basic nitrogen parameter; FP_TOT_PCT_MAR: the percentage of middle end aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_M: the percentage of one-ring aromatic hydrocarbon in the middle end total aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_M: the percentage of two-ring aromatic hydrocarbon in the middle end total aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; PCT_AR1_M: the percentage of one-ring aromatic hydrocarbon in the middle end total aromatic hydrocarbon in the raw material to be tested; PCT_AR2_M: the percentage of two-ring aromatic hydrocarbon in the middle end total aromatic hydrocarbon in the raw material to be tested; FP_TOT_PCT_HAR: the percentage of heavy end aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; FP_TOT_PCT_AR1_H: the percentage of one-ring aromatic hydrocarbon in the heavy end total aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; FP_TOT_PCT_AR2_H: the percentage of two-ring aromatic hydrocarbon in the heavy end total aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; FP_TOT_PCT_AR3_H: the percentage of three-ring aromatic hydrocarbon in the heavy end total aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; FP_TOT_PCT_AR4_H: the percentage of four-ring aromatic hydrocarbon in the heavy end total aromatic hydrocarbon in the fingerprint library, which can be calculated from the molecular composition of the fingerprint library; PCT_AR1_2_H: the percentage of one-ring and two-ring aromatic hydrocarbon in the heavy end total aromatic hydrocarbon in the raw material to be tested; PCT_AR3_4_H: the percentage of three-ring and four-ring aromatic hydrocarbon in the heavy end total aromatic hydrocarbon in the raw material to be tested; FRC_AR1OF1_2: the percentage of one-ring aromatic hydrocarbon in the heavy end one-ring and two-ring aromatic hydrocarbon in the raw material to be tested; FRC_AR2OF1_2: the percentage of two-ring aromatic hydrocarbon in the heavy end one-ring and two-ring aromatic hydrocarbon in the raw material to be tested; FRC_AR3OF3_4: the percentage of three-ring aromatic hydrocarbon in the heavy end three-ring and four-ring aromatic hydrocarbon in the raw material to be tested; FRC_AR4OF3_4: the percentage of four-ring aromatic hydrocarbon in the heavy end three-ring and four-ring aromatic hydrocarbon in the raw material to be tested;

[0265] Other correlation formulas:

[0266] The sum of the mass content of the middle end component monocyclic aromatic hydrocarbon in the raw material to be tested and the mass content of the middle end component bicyclic aromatic hydrocarbon in the middle end component aromatic hydrocarbon is 100:

[0267] 0 = 100 - PCT_AR1_M - PCT_AR2_M (89)

[0268] The sum of the mass content of the heavy end component monocyclic and bicyclic aromatic hydrocarbons in the heavy end component aromatic hydrocarbon and the mass content of the heavy end component tricyclic and tetracyclic aromatic hydrocarbons in the heavy end component aromatic hydrocarbon is 100:

[0269] 0 = 100 - PCT_AR1_2H - PCT_AR3_4_H (90)

[0270] The mass content of the heavy end component monocyclic aromatic hydrocarbon in the total amount of the heavy end component monocyclic and bicyclic aromatic hydrocarbons and the mass content of the heavy end component bicyclic aromatic hydrocarbon in the total amount of the heavy end component monocyclic and bicyclic aromatic hydrocarbons is 100:

[0271] 0 = 100 - FRC_AR1OF1_2 - FRC_AR2OF1_2 (91)

[0272] FRC_AR1OF1_2 is the mass percentage of the heavy end component monocyclic aromatic hydrocarbon in the total amount of the heavy end component monocyclic and bicyclic aromatic hydrocarbons, which is calculated from the heavy end h_WABP calculated from the distillation curve of the component to be tested, the heavy end h_WABP of the fingerprint library, and the mass percentage of the heavy end component monocyclic aromatic hydrocarbon in the heavy end component monocyclic and bicyclic aromatic hydrocarbons;

[0273] The mass content of the heavy end component tricyclic aromatic hydrocarbon in the total amount of the heavy end component tricyclic and tetracyclic aromatic hydrocarbons and the mass content of the heavy end component tetracyclic aromatic hydrocarbon in the total amount of the heavy end component tricyclic and tetracyclic aromatic hydrocarbons is 100:

[0274] 0 = 100 - FRC_AR3OF3_4 - FRC_AR4OF3_4 (92)

[0275] FRC_AR3OF3_4 is the mass percentage of the heavy end component tricyclic aromatic hydrocarbon in the heavy end component tricyclic and tetracyclic aromatic hydrocarbons, which is calculated from the heavy end h_WABP calculated from the distillation curve of the component to be tested, the heavy end h_WABP of the fingerprint library, and the mass percentage of the heavy end component tricyclic aromatic hydrocarbon in the heavy end component tricyclic and tetracyclic aromatic hydrocarbons;

[0276] S_CON_CAL is calculated according to the composition and content of sulfides:

[0277] 0 = S_CON_CAL - f(sAS, sS8, sASA, mASA, mASN, mS12, mASAN, mASA2, hASAN, hASA2, hS28, vASA2N, vASA3) (93)

[0278] where f(sAS, sS8, sASA, mASA, mASN, mS12, mASAN, mASA2, hASAN, hASA2, hS28, vASA2N, vASA3) is a function of the mass content of each relevant component.

[0279] 0 = S_CON_MEAS - S_CON_CAL - S_CON_BIAS (94)

[0280] where S_CON_MEAS is the measured value of sulfur content, S_CON_CAL is the calculated value of sulfur content, and S_CON_BIAS is the bias of sulfur content.

[0281] N_CON_CAL is calculated from the composition and content of non-basic nitrogen compounds:

[0282] 0 = N_CAL - f(SNNt, mNNtA, hNNtA2, vNNtA3) (96)

[0283] where f(SNNt, mNNtA, hNNtA2, vNNtA3) is a function of the mass content of each relevant component.

[0284] 0 = N_CON_MEAS - N_CON_CAL - N_CON_BIAS (97)

[0285] where N_CON_MEAS is the measured value of nitrogen content, N_CON_CAL is the calculated value of nitrogen content, and N_CON_BIAS is the bias of nitrogen content.

[0286] BN_CON_CAL is calculated from the composition and content of basic nitrogen compounds:

[0287] 0 = BN_CON_CAL - f(sBNt, mBNtN, mBNtA, hBNtAN, hBNtA2, vBNtA2N) (98)

[0288] where f(sBNt, mBNtN, mBNtA, hBNtAN, hBNtA2, vBNtA2N) is a function of the mass content of each relevant component.

[0289] 0 = BN CON MEAS - BN CON CAL - BN CON BIAS (99)

[0290] Where BN CON MEAS is the measured value of basic nitrogen content, BN CON CAL is the calculated value of basic nitrogen content, and BN CON BIAS is the bias of basic nitrogen content.

[0291] CA CAL is calculated according to the composition and content of aromatic hydrocarbon:

[0292] 0 = CA CAL - f(A6, A7, A8, A9, A10, mlAl, mlAN, mlA2, mlAN2, mlA2N, mlANA, mhAl, mhAN, mhA2, mhAN2, mhA2N, mhANA, hAl, hAN, hA2, hAN2, hA2N, hA3, hANA, hA4, hAN3, hA2N2, vAl, vAN, vA2, vAN2, vA2N, vA3, vANA, vA4, vAN3, vA2N2) (100)

[0293] f(A6, A7, A8, A9, A10, mlAl, mlAN, mlA2, mlAN2, mlA2N, mlANA, mhAl, mhAN, mhA2, mhAN2, mhA2N, mhANA, hAl, hAN, hA2, hAN2, hA2N, hA3, hANA, hA4, hAN3, hA2N2, vAl, vAN, vA2, vAN2, vA2N, vA3, vANA, vA4, vAN3, vA2N2) is a function of the mass content of each relevant component.

[0294] CA MEAS can be obtained by NDM method according to simple measured specific gravity, refractive index, etc.:

[0295] 0 = CA MEAS - CA CAL - CA BIAS (101)

[0296] CA MEAS is the measured value of aromatic hydrocarbon content, CA CAL is the calculated value of aromatic hydrocarbon content, and CA BIAS is the bias of aromatic hydrocarbon content.

[0297] CN CAL is calculated according to the composition and content of naphthenic hydrocarbon:

[0298] 0 = CA_CAL - f(N6, N7, N8, N9, N10, mlN1, mlN2, mlN3, mhN1, mhN2, mhN3, hN1, hN2, hN3, hN4, vN1, vN2, vN3, vN4) (102)

[0299] f(N6, N7, N8, N9, N10, mlN1, mlN2, mlN3, mhN1, mhN2, mhN3, hN1, hN2, hN3, hN4, vN1, vN2, vN3, vN4) is the mass content function of each relevant component.

[0300] CN_MEAS can be converted by NDM method according to the proportion of simple measurement, refractive index, etc.:

[0301] 0 = CN_MEAS - CN_CAL - CN_BIAS (103)

[0302] CN_MEAS is the measured value of naphthene, CN_CAL is the calculated value of naphthene, and CN_BIAS is the bias value of naphthene.

[0303] By simultaneously solving the above 103 equations, the above equations are solved by using a nonlinear solution algorithm, and the molecular composition of the hydrogenation feedstock to be measured and the related parameters L_PARM, M_PARM, H_PARM, CA_PARM, CN_PARM, S_PARM, N_PARM, BN_PARM and the biases S_CON_BIAS, BN_CON_BIAS, N_CON_BIAS, CA_BIAS, CN_BIAS can be obtained.

[0304] The prediction method provided by the application is further described below in combination with a test case.

[0305] Test case: Taking light vacuum gas oil as an example, its relevant properties are as follows: API gravity 21.4, sulfur content 0.445%, total nitrogen content 1290 ppm, and basic nitrogen content 218.15 ppm; its distillation curve is shown in Table 2:

[0306] Table 2 Distillation curve of light vacuum gas oil

[0307]

[0308] According to the above established feedstock prediction model, the relevant calculation parameter results are shown in Table 3, and the molecular composition calculation results of the feedstock to be measured are shown in Table 4:

[0309] Table 3 Related calculation parameters of the feedstock prediction model

[0310]

[0311]

[0312] Table 4: Calculated results of molecular composition in raw materials to be tested

[0313]

[0314]

[0315] The above merely describes preferred embodiments of the present application, and it should be noted that, for those skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the scope of the present application.

Claims

1. A method for predicting the molecular composition of hydrocracking feedstock, comprising the following steps: Step S1): Obtain experimental values ​​of the physical properties of the hydrocracking feedstock to be tested; Step S2): Based on the experimental values ​​of the physical properties of the hydrocracking feedstock to be tested and the pre-established hydrocracking feedstock fingerprint database, obtain the molecular composition and content of the hydrocracking feedstock; The hydrocracking feedstock fingerprint database includes the physical property parameters of the hydrocracking feedstock, the relationship between the carbon number, structure and content of multiple molecular matrices, and the relationship between the physical property parameters and multiple molecular matrices. The plurality of molecular matrices include light-end components with 1 to 8 carbon atoms, middle-end components with 9 to 18 carbon atoms, and heavy-end components with 21 to 47 carbon atoms; the light-end components, middle-end components, and heavy-end components independently include alkanes, cycloalkanes, aromatics, sulfides, and nitrides.

2. The prediction method according to claim 1, characterized in that, In the molecular matrix, the alkanes include n-alkanes of C1~10, C14, C18, C26 and C47; The cycloalkanes include monocycloalkanes of C6 to C9, bicycloalkanes of C10, monocyclic, bicyclic and tricyclic alkanes of C14, monocyclic, bicyclic and tricyclic alkanes of C18, monocyclic, bicyclic, tricyclic and tetracyclic alkanes of C21, and monocyclic, bicyclic, tricyclic and tetracyclic alkanes of C47. The aromatic hydrocarbons include C6-9 benzene compounds; C10 benzene compounds, naphthalene compounds, tetrahydronaphthalene compounds, and monocyclic aromatic and dicyclic alkanes; C14 benzene compounds, naphthalene compounds, tetrahydronaphthalene compounds, monocyclic aromatic and dicyclic alkanes, and dicyclic aromatic and monocyclic alkanes; C18 benzene compounds, naphthalene compounds, tetrahydronaphthalene compounds, monocyclic aromatic and dicyclic alkanes, and dicyclic aromatic and monocyclic alkanes; C21 benzene compounds, naphthalene compounds, tetrahydronaphthalene compounds, Monocyclic aromatic hydrocarbons and bicyclic alkanes, bicyclic aromatic hydrocarbons and monocyclic alkanes, tricyclic aromatic hydrocarbons, fluorenes, tetracyclic aromatic hydrocarbons, monocyclic aromatic hydrocarbons and tricyclic alkanes, and bicyclic aromatic hydrocarbons and bicyclic alkanes; C21 compounds including benzenes, naphthalenes, tetrahydronaphthalenes, monocyclic aromatic hydrocarbons and bicyclic alkanes, bicyclic aromatic hydrocarbons and monocyclic alkanes, tricyclic aromatic hydrocarbons, fluorenes, tetracyclic aromatic hydrocarbons, monocyclic aromatic hydrocarbons and tricyclic alkanes, and bicyclic aromatic hydrocarbons and bicyclic alkanes; The sulfides include C4 thiophenes; C8 cyclic sulfides and aromatic thiophenes; C10 cyclic sulfides and aromatic thiophenes; C12 cyclic sulfides and aromatic thiophenes; C14 cyclic sulfides and aromatic thiophenes; C21 cyclic sulfides and aromatic thiophenes; C28 cyclic sulfides and aromatic thiophenes; and C47 cyclic sulfides and aromatic thiophenes. The nitrides include C4 pyrroles and non-basic nitrogen compounds; C9 pyrroles, quinolines and non-basic nitrogen compounds; C21 pyrroles, quinolines, phenanthridines, carbazoles and non-basic nitrogen compounds; C35 pyrroles, quinolines, phenanthridines, carbazoles and non-basic nitrogen compounds; and C47 pyrroles, quinolines, phenanthridines, carbazoles and non-basic nitrogen compounds.

3. The prediction method according to claim 2, characterized in that, The light-end components include C1-8 n-alkanes, C6-8 monocyclic alkanes, C6-8 monocyclic aromatics, thiophene, benzothiophene, cyclic sulfur compounds containing 8 carbon atoms, non-basic nitrides containing 4 carbon atoms, and pyrrole. The intermediate components include n-nonane, n-decane, n-tetradecane, n-octadecane, monocyclic alkanes containing 9 carbon atoms, bicyclic alkanes containing 10 carbon atoms, monocyclic alkanes containing 14 carbon atoms, bicyclic alkanes containing 14 carbon atoms, tricyclic alkanes containing 14 carbon atoms, monocyclic alkanes containing 18 carbon atoms, bicyclic alkanes containing 18 carbon atoms, tricyclic alkanes containing 18 carbon atoms, monocyclic aromatic hydrocarbons containing 9 carbon atoms, monocyclic aromatic hydrocarbons containing 10 carbon atoms, monocyclic aromatic hydrocarbons containing 14 carbon atoms, monocyclic aromatic hydrocarbons containing 14 carbon atoms, monocyclic aromatic hydrocarbons containing 14 carbon atoms, cycloalkanes containing 14 carbon atoms, dicyclic aromatic hydrocarbons containing 14 carbon atoms, monocyclic aromatic hydrocarbons containing 14 carbon atoms, dicyclic aromatic hydrocarbons containing 14 carbon atoms, and monocyclic aromatic hydrocarbons containing 14 carbon atoms. Aromatic hydrocarbons, monocyclic alkanes, monocyclic aromatic hydrocarbons containing 18 carbon atoms, monocyclic aromatic hydrocarbons with 18 carbon atoms, dicyclic aromatic hydrocarbons with 18 carbon atoms, monocyclic aromatic hydrocarbons with 18 carbon atoms, dicyclic aromatic hydrocarbons with 18 carbon atoms, monocyclic aromatic hydrocarbons with 18 carbon atoms, monocyclic aromatic hydrocarbons with 18 carbon atoms, monocyclic aromatic hydrocarbons with 10 carbon atoms, thiophene, monocyclic alkanes with 10 carbon atoms, cyclic sulfur compounds containing 12 carbon atoms, monocyclic aromatic hydrocarbons with 14 carbon atoms, thiophene, monocyclic alkanes, bicyclic aromatic hydrocarbons with 10 carbon atoms, non-basic nitride aromatic hydrocarbons with 9 carbon atoms, pyrrolomonocyclic aromatic hydrocarbons with 9 carbon atoms, and pyrrolomonocyclic alkanes with 9 carbon atoms. The heavy-end components include n-hexadecane, n-hexadecadecane, monocyclic alkanes containing 21 carbon atoms, bicyclic alkanes containing 21 carbon atoms, tricyclic alkanes containing 21 carbon atoms, tetracyclic alkanes containing 21 carbon atoms, monocyclic alkanes containing 47 carbon atoms, bicyclic alkanes containing 47 carbon atoms, tricyclic alkanes containing 47 carbon atoms, tetracyclic alkanes containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms, monocyclic aromatic hydrocarbons and monocyclic alkanes containing 21 carbon atoms, etc. Bicyclic aromatic hydrocarbons with 21 carbon atoms, monocyclic aromatic hydrocarbons and cycloalkanes with 21 carbon atoms, bicyclic aromatic hydrocarbons and monocyclic alkanes with 21 carbon atoms, tricyclic aromatic hydrocarbons with 21 carbon atoms, monocyclic aromatic hydrocarbons and monocyclic alkanes with 21 carbon atoms, tetracyclic aromatic hydrocarbons with 21 carbon atoms, monocyclic aromatic hydrocarbons and tricyclic alkanes with 21 carbon atoms, bicyclic aromatic hydrocarbons and bicyclic alkanes with 21 carbon atoms, monocyclic aromatic hydrocarbons with 47 carbon atoms, and monocyclic aromatic hydrocarbons and monocyclic alkanes with 47 carbon atoms. Aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms, cycloalkanes containing 47 carbon atoms, tricyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms, tetracyclic aromatic hydrocarbons containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 47 carbon atoms, tricyclic aromatic hydrocarbons containing 47 carbon atoms, dicyclic aromatic hydrocarbons containing 47 carbon atoms, cycloalkanes containing 47 carbon atoms, monocyclic aromatic hydrocarbons containing 21 carbon atoms, thiophene monocyclic aromatic hydrocarbons, and so on. Bicyclic aromatic hydrocarbons containing 1 carbon atom and thiophene, cyclic sulfur compounds containing 28 carbon atoms, bicyclic aromatic hydrocarbons containing 47 carbon atoms and thiophene and monocyclic alkanes, tricyclic aromatic hydrocarbons containing 47 carbon atoms and thiophene, non-basic nitrides and bicyclic aromatic hydrocarbons containing 21 carbon atoms, non-basic nitrides and tricyclic aromatic hydrocarbons containing 47 carbon atoms, pyrrolomonocyclic aromatic hydrocarbons and monocyclic alkanes containing 21 carbon atoms, pyrrolobicyclic aromatic hydrocarbons containing 21 carbon atoms, and pyrrolobicyclic aromatic hydrocarbons and monocyclic alkanes containing 35 carbon atoms.

4. The prediction method according to any one of claims 1 to 3, characterized in that, The physical properties of the hydrocracking feedstock include distillation curve parameters, density or specific gravity parameters, sulfur content parameters, nitrogen content parameters, basic nitrogen content parameters, and bromine value parameters.

5. The prediction method according to claim 4, characterized in that, The hydrocracking feedstock is selected from light vacuum gas oil, heavy vacuum gas oil, light coking gas oil, heavy coking gas oil, catalytic cracking heavy cycle oil, or hydrocracking tail oil.

6. The prediction method according to claim 5, characterized in that, The hydrocracking feedstock fingerprint database includes a light vacuum gas oil fingerprint database, a heavy vacuum gas oil fingerprint database, a light coking gas oil fingerprint database, a heavy coking gas oil fingerprint database, a catalytic cracking heavy cycle oil fingerprint database, or a hydrocracking tail oil fingerprint database. The prediction method also includes selecting a corresponding fingerprint library based on the type of hydrocracking feedstock to be tested.

7. The prediction method according to claim 1 or 6, characterized in that, In step S2), a matrix relationship is established between the experimental values ​​of the physical properties of the hydrocracking feedstock to be tested and the pre-established fingerprint database of hydrocracking feedstock, and the molecular composition of the hydrocracking feedstock is obtained through the matrix relationship.

8. The prediction method according to claim 7, characterized in that, The matrix relationships include: 0=P x1 -f(FP_P x1 Formula (I) (L_PARM) Among them, P x1 FP_P represents the mass content of alkane with X1 carbon atoms in the hydrocracking feedstock to be tested. x1 L-PARM represents the mass content of alkane with X1 carbon atoms in the light-end component of the hydrocracking feedstock fingerprint library; X1 is an integer from 1 to 10. 0=P x2 -f(FP_P x2 Equation (II) of M_PARM Among them, P x2 FP_P represents the mass content of alkanes with X2 carbon atoms in the hydrocracking feedstock to be tested. x2 M_PARM represents the mass content of alkanes with X2 carbon atoms in the mid-component of the hydrocracking feedstock fingerprint library, where M_PARM is the mid-component parameter and X2 is an integer from 11 to 18. 0 = P x3 -f(FP_P x3 , H_PARM) Equation (III) Among them, P x3 FP_P represents the mass content of alkanes with X3 carbon atoms in the hydrocracking feedstock to be tested. x3 H_PARM represents the mass content of alkanes with X3 carbon atoms in the heavy-end component of the hydrocracking feedstock fingerprint library, where H_PARM is the heavy-end component parameter; X3 is an integer from 19 to 47. 0=N x1 -f(FP_N x1 Formula (IV) of L_PARM Where, N x1 FP_N represents the mass content of cycloalkanes with X1 carbon atoms in the hydrocracking feedstock to be tested. x1 L-PARM represents the mass content of cycloalkanes with X1 carbon atoms in the light-end component of the hydrocracking feedstock fingerprint library; X1 is an integer from 1 to 10. 0=N x2 -f(FP_N x2 Formula (V) (M_PARM,CN_PARM) Where, N x2 FP_N represents the mass content of cycloalkanes with X2 carbon atoms in the hydrocracking feedstock to be tested. x2 M_PARM represents the mass content of cycloalkanes with X2 carbon atoms in the mid-component of the hydrocracking feedstock fingerprint library, where M_PARM is the mid-component parameter and CN_PARM is the cycloalkane parameter; X2 is an integer from 11 to 18. 0=N x3 -f(FP_N x3 ,H_PARM, CN_PARM) Formula (VI) Where, N x3 FP_N represents the mass content of alkanes with X3 carbon atoms in the hydrocracking feedstock to be tested. x3 H_PARM represents the mass content of alkanes with X3 carbon atoms in the heavy-end component of the hydrocracking feedstock fingerprint library, where H_PARM is the parameter for the mid-end component and CN_PARM is the parameter for cycloalkanes; X3 is an integer from 19 to 47. 0 = A x1 -f(FP_A x1 , L_PARM) Formula (VII) Among them, A x1 FP_A represents the mass content of aromatics with X1 carbon atoms in the hydrocracking feedstock to be tested. x1 L_PARM represents the mass content of aromatics at the X1 carbon atoms in the light-end component of the hydrocracking feedstock fingerprint library, where L_PARM is the parameter of the light-end component; X1 is an integer from 1 to 10. 0 = A x2 a1Nb1 - f(FP_A x2 a1Nb1, M_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_MAR, FP_TOT_PCT_ARa1_M, PCT_ARa1_M) Formula (VIII) Among them, A x2 a1 represents the mass content of aromatic hydrocarbons consisting of X2 carbon atoms, a1 aromatic rings, and b1 cycloalkanes in the hydrocracking feedstock to be tested, FP_A x2 a1 represents the mass content of aromatics with X2 carbon atoms, a1 aromatic rings, and b1 cycloalkanes in the mid-component of the hydrocracking feedstock fingerprint library; M_PARM represents the mid-component parameter; CA_PARM represents the aromatic parameter; CN_PARM represents the cycloalkane parameter; FP_TOT_PCT_MAR represents the mass content of aromatics in the mid-component of the hydrocracking feedstock fingerprint library; FP_TOT_PCT_ARa1_M represents the mass content of aromatics with a1 aromatic rings in the mid-component relative to the total aromatics in the mid-component of the hydrocracking feedstock fingerprint library; PCT_ARa1_M represents the mass content of aromatics with a1 aromatic rings in the mid-component relative to the total aromatics in the mid-component of the hydrocracking feedstock to be tested; X2 is an integer from 11 to 18; a1 is an integer from 1 to 2; b1 is an integer from 0 to 2. 0 = A x3 a2Nb2 - f(FP_A x3 a2Nb2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_ARa2_H, PCT_AR1_2_H, FRC_ARa2OF1_2) Formula (IX) Among them, A x3 a2 represents the mass content of aromatic hydrocarbons consisting of X3 carbon atoms, a2 aromatic rings, and b2 cycloalkanes in the hydrocracking feedstock to be tested, FP_A x3 a2 represents the mass content of aromatics in the heavy-end components of the hydrocracking feedstock fingerprint library, consisting of X3 carbon atoms, a2 aromatic rings, and b2 cycloalkanes; H_PARM represents the mid-end component parameter; CA_PARM represents the aromatic parameter; CN_PARM represents the cycloalkane parameter; FP_TOT_PCT_HAR represents the mass content of aromatics in the heavy-end components of the hydrocracking feedstock fingerprint library; FP_TOT_PCT_ARa2_H represents the mass content of aromatics in the a2 aromatic rings of the hydrocracking feedstock fingerprint library relative to the total aromatics in the heavy-end components; PCT_AR1_2_H represents the mass content of monocyclic and bicyclic aromatics in the hydrocracking feedstock to be tested relative to the total aromatics in the heavy-end components; FRC_ARa2OF1_2 represents the mass content of aromatics in the a2 aromatic rings of the hydrocracking feedstock to be tested relative to the monocyclic and bicyclic aromatics in the heavy-end components; X3 is an integer from 19 to 47, a2 is an integer from 1 to 2, and b2 is an integer from 0 to 2. 0 = A x3 a3Nb2 - f(FP_A x3 a3Nb2, H_PARM, CA_PARM, CN_PARM, FP_TOT_PCT_HAR, FP_TOT_PCT_ARa3_H, PCT_AR3_4_H, FRC_ARa3OF3_4) Formula (X) Among them, A x3 a3 represents the mass content of aromatic hydrocarbons consisting of X3 carbon atoms, a3 aromatic rings, and b2 cycloalkanes in the hydrocracking feedstock to be tested, FP_A x3 a3 represents the mass content of aromatics with X3 carbon atoms, a3 aromatic rings, and b2 cycloalkanes in the heavy-end component of the hydrocracking feedstock fingerprint library; H_PARM represents the heavy-end component parameter; CA_PARM represents the aromatic parameter; CN_PARM represents the cycloalkane parameter; FP_TOT_PCT_HAR represents the mass content of aromatics in the heavy-end component of the hydrocracking feedstock fingerprint library; FP_TOT_PCT_ARa3_H represents the mass content of aromatics with a3 aromatic rings in the hydrocracking feedstock fingerprint library as a percentage of the total aromatics in the heavy-end component; PCT_AR3_4_H represents the mass content of tricyclic and tetracyclic aromatics in the heavy-end component of the hydrocracking feedstock to be tested; FRC_ARa3OF3_4 represents the mass content of aromatics with a3 aromatic rings in the heavy-end component of the hydrocracking feedstock to be tested as a percentage of the tricyclic and tetracyclic aromatics in the heavy-end component; X3 is an integer from 19 to 47; a3 is an integer from 3 to 4; and b2 is an integer from 0 to 2. 0=S x1 Aa4Nb4-f(FP_S) x1 Aa4Nb4,L_PARM,S_PARM) Equation (XI) Among them, S x1 Aa4Nb4 represents the mass content of sulfides of X1 carbon atoms and a4 aromatic rings, and cycloalkanes with b4 rings in the hydrocracking feedstock to be tested. FP_P x1 The mass content of sulfides of X1 carbon atoms and a4 aromatic rings and b4 cycloalkanes in the light-end component of the hydrocracking feedstock fingerprint library is given by L_PARM, which is the light-end component parameter and S_PARM, which is the sulfur parameter; X1 is an integer from 1 to 10; a4 is an integer from 0 to 3; and b4 is an integer from 0 to 2. 0 = S x2 Aa4Nb4 - f(FP_S x2 Aa4Nb4, M_PARM, S_PARM) Formula (XII) Among them, S x2 Aa4Nb4 represents the mass content of sulfides of X2 carbon atoms and a4 aromatic rings, and cycloalkanes with b4 rings in the hydrocracking feedstock to be tested. FP_P x2 The mass content of sulfides of X2 carbon atoms and a4 aromatic rings and b4 cycloalkanes in the mid-terminal component of the hydrocracking feedstock fingerprint library is given by M_PARM, which is the light-end component parameter and S_PARM, which is the sulfur parameter; X2 is an integer from 11 to 18; a4 is an integer from 0 to 3; and b4 is an integer from 0 to 2. 0 = S x3 Aa4Nb4 - f(FP_S x3 Aa4Nb4, H_PARM, S_PARM) Formula (XIII) Among them, S x3 Aa4Nb4 represents the mass content of sulfides of X3 carbon atoms and a4 aromatic rings, and cycloalkanes of b4 rings in the hydrocracking feedstock to be tested. FP_P x3 The mass content of sulfides of X2 carbon atoms and a4 aromatic rings and b4 cycloalkanes in the heavy-end components of the hydrocracking feedstock fingerprint library, where H_PARM is the heavy-end component parameter, S_PARM is the sulfur parameter; X3 is an integer from 19 to 47; a4 is an integer from 0 to 3, and b4 is an integer from 0 to 2. 0 = NNT x1 Aa5Nb5-f(FP_NNT) x1 Aa5Nb5,L_PARM,N_PARM) Equation (XIV) Among them, NNT x1 Aa5Nb5 represents the mass content of non-basic nitrogen compounds with X1 carbon atoms and a5 aromatic rings, or cycloalkanes with b5 rings, in the hydrocracking feedstock to be tested. FP_NNT x1 Aa5Nb5 represents the mass content of non-basic nitrogen compounds with X1 carbon atoms and a5 aromatic rings, or non-basic nitrogen compounds with b5 rings in the light-end component of the hydrocracking feedstock fingerprint library; L_PARM represents the light-end component parameter; N_PARM represents the non-basic nitrogen parameter; X1 is an integer from 1 to 10; a5 is an integer from 0 to 3; b5 is an integer from 0 to 2. 0 = NNT x2 Aa5Nb5-f(FP_NNT) x2 Aa5Nb5,M_PARM,N_PARM) Equation (XV) Among them, NNT x2 Aa5Nb5 represents the mass content of non-basic nitrogen compounds with X2 carbon atoms and a5 aromatic rings, or cycloalkanes with b5 rings, in the hydrocracking feedstock to be tested. FP_NNT x2 Aa5Nb5 represents the mass content of non-basic nitrogen compounds with X2 carbon atoms and a5 aromatic rings, and non-basic nitrogen compounds with b5 rings in the mid-component of the hydrocracking feedstock fingerprint library; M_PARM represents the mid-component parameter; N_PARM represents the non-basic nitrogen parameter; X2 is an integer from 11 to 18; a5 is an integer from 0 to 3; b5 is an integer from 0 to 2. 0 = NNT x3 Aa5Nb5-f(FP_NNT) x3 Equation (XVI) is as follows: (Aa5Nb5,H_PARM,N_PARM) Among them, NNT x3 Aa5Nb5 represents the mass content of non-basic nitrogen compounds with X3 carbon atoms and a5 aromatic rings, or cycloalkanes with b5 rings, in the hydrocracking feedstock to be tested. FP_NNT x3 Aa5Nb5 represents the mass content of non-basic nitrogen compounds with X3 carbon atoms and a5 aromatic rings, and non-basic nitrogen compounds with b5 rings in the heavy-end components of the hydrocracking feedstock fingerprint library; H_PARM is the heavy-end component parameter; N_PARM is the non-basic nitrogen parameter; X3 is an integer from 21 to 47; a5 is an integer from 0 to 3; b5 is an integer from 0 to 2. 0 = BNT x1 Aa5Nb5 - f(FP_BNT x1 Aa5Nb5, L_PARM, BN_PARM) Formula (XVII) Among them, BNT x1 Aa5Nb5 represents the mass content of basic nitrogen compounds with X1 carbon atoms and a5 aromatic rings, and cycloalkanes with b5 aromatic rings in the hydrocracking feedstock to be tested. FP_BNT x1 Aa5Nb5 represents the mass content of basic nitrogen compounds with X1 carbon atoms and a5 aromatic rings, and basic nitrogen compounds with b5 rings in the light-end component of the hydrocracking feedstock fingerprint library; L_PARM represents the light-end component parameter; BN_PARM represents the basic nitrogen parameter; X1 is an integer from 1 to 10; a5 is an integer from 0 to 3; b5 is an integer from 0 to 2. 0 = BNT x2 Aa5Nb5 - f (FP_BNT x2 Aa5Nb5, M_PARM, BN_PARM) Formula (XVIII) Among them, BNT x2 Aa5Nb5 represents the mass content of basic nitrogen compounds with X2 carbon atoms and a5 aromatic rings, and cycloalkanes with b5 aromatic rings in the hydrocracking feedstock to be tested. FP_BNT x2 Aa5Nb5 represents the mass content of basic nitrogen compounds with X2 carbon atoms and a5 aromatic rings, and basic nitrogen compounds with b5 rings in the mid-component of the hydrocracking feedstock fingerprint library; M_PARM represents the mid-component parameter; BN_PARM represents the basic nitrogen parameter; X2 is an integer from 11 to 18; a5 is an integer from 0 to 3; b5 is an integer from 0 to 2. 0 = BNT x3 Aa5Nb5-f(FP_BNT) x3 Aa5Nb5,H_PARM,N_PARM) Equation (XIX) Among them, BNT x3 Aa5Nb5 represents the mass content of basic nitrogen compounds with X3 carbon atoms and a5 aromatic rings, and cycloalkanes with b5 aromatic rings in the hydrocracking feedstock to be tested. FP_BNT x3 Aa5Nb5 represents the mass content of basic nitrogen compounds with X3 carbon atoms and a5 aromatic rings and b5 rings in the heavy-end components of the hydrocracking feedstock fingerprint library. H_PARM is the heavy-end component parameter, and BN_PARM is the basic nitrogen parameter. X3 is an integer from 21 to 47; a5 is an integer from 0 to 3, and b5 is an integer from 0 to 2.

9. The prediction method according to claim 8, characterized in that, The matrix relationship also includes: The total mass content of monocyclic aromatic hydrocarbons and dicyclic aromatic hydrocarbons in the hydrocracking feedstock to be tested is 100. The total mass content of the heavy-end components of the hydrocracking feedstock, namely the monocyclic and dicyclic aromatics and the tricyclic and tetracyclic aromatics, is 100. The sum of the mass content of monocyclic aromatic hydrocarbons in the heavy-end components of the hydrocracking feedstock and the mass content of dicyclic aromatic hydrocarbons in the heavy-end components is 100%. The sum of the mass content of tricyclic aromatic hydrocarbons in the heavy-end components of the hydrocracking feedstock and the mass content of tetracyclic aromatic hydrocarbons in the heavy-end components is 100. Establish the relationship between sulfide deviation and the molecular composition and content of sulfides; Establish the relationship between the deviation of non-basic nitrogen compounds and the molecular composition and content of non-basic nitrogen compounds; Establish the relationship between the deviation of basic nitrogen compounds and the molecular composition and content of basic nitrogen compounds; Establish the relationship between aromatic hydrocarbon deviation and the molecular composition and content of aromatic hydrocarbons; Establish the relationship between cycloalkane deviation and the molecular composition and content of cycloalkanes.

10. A machine-readable storage medium having instructions stored thereon for causing a machine to perform the method described in any one of claims 1 to 9.

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