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High-aromatic hydrogenation and thermal cracking method adopting combined fractionation of raw oil and generated oil

A technology for generating oil and high aromatic hydrocarbons, which is applied in the field of high aromatic hydrocarbon hydrothermal cracking in the combined fractionation of feedstock oil and generated oil, which can solve the problems of environmental pollution, high leakage risk and high leakage opportunity.

Inactive Publication Date: 2016-06-22
何巨堂 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The commonality and disadvantages of the above two sets of fractionation systems, namely the pre-fractionation process CFRAC and the post-fractionation process 1FRAC are:
[0013] ③ One of the disadvantages, 2 sets of systems, the system is complex,
[0014] ④ One of the disadvantages, two sets of systems, each system is small in scale, high in investment, high in energy consumption, the overall number of equipment in the two sets of systems is large, the chance of leakage is large, the environment is polluted, the risk of "running, risking, dripping, and leaking" is high, and the operation complex
[0025] Method of the present invention has no report

Method used

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  • High-aromatic hydrogenation and thermal cracking method adopting combined fractionation of raw oil and generated oil
  • High-aromatic hydrogenation and thermal cracking method adopting combined fractionation of raw oil and generated oil
  • High-aromatic hydrogenation and thermal cracking method adopting combined fractionation of raw oil and generated oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0694] The analysis data of medium-temperature coal tar high aromatics BF is shown in Table 3; according to the present invention, the hydrothermal cracking process and subsequent processing of the heavy fraction MH obtained from the combined fractionation of high aromatics BF and hydrothermal cracking oil and its subsequent processing include the following steps :

[0695] ①In the fractionation process AFRA℃, the high aromatics BF and the stream R10P-L-TF from step ③ are jointly fractionated to obtain the light fraction ML mainly composed of conventional liquid hydrocarbons with a conventional boiling point lower than 350℃, mainly composed of conventional boiling point of 300~ Heavy fraction MH consisting of normal liquid hydrocarbons at 540°C and residue MR containing normal liquids with normal boiling points higher than 540°C;

[0696] Residue MR does not enter the hydrogenation reaction process;

[0697] Fractionation process AFRA adopts CN104498076A record " a kind of me...

Embodiment 2

[0715] Based on Embodiment 1, in order to control the recycling rate of the first hydrogenation reaction catalyst R10C, a separation part S800 is set in the fractionation process AFRAC;

[0716] In separation section S800, stream R10P-L-TF is separated into gaseous S800V and liquid stream S800L which may contain solids;

[0717] The hydrocarbons in stream S800L are mainly composed of hydrocarbon components with conventional boiling points higher than 540°C;

[0718] About 45-60% of the liquid stream S800L returns to the first hydrogenation reaction process R10 to contact with the first hydrogenation reaction catalyst R10C.

[0719] Table 3 Analysis data of medium temperature coal tar

[0720]

[0721]

[0722] Table 4 The first hydrogenation reaction process (hydrothermal cracking process) R10 reaction conditions

[0723] project

data

Reactor form

suspended bed

Total reaction pressure, MPa

17.0～17.5

Reactive hydrogen partial ...

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Abstract

A high aromatics hydrothermal cracking method for combined fractionation of feed oil and produced oil, in the fractionation process AFRAC, high aromatics BF such as medium and low temperature coal tar and stream R10P-L based on the first hydrogenation reaction effluent R10P combined fractionation to obtain light Fraction ML, heavy fraction MH and possible residual oil MR, at least a part of MH enters the first hydrogenation reaction process R10 as hydrocarbon feedstock R10F to carry out hydrothermal cracking reaction R10R to obtain the first hydrogenation reaction effluent R10P; separate R10P to obtain possible The hydrocarbon oil stream R10P-L containing solids and the gas R10P-V, the stream R10P-VXX based on R10P-V and the stream R20P-VXX based on ML or the hydrofinishing reaction effluent R20P based on ML can enter the third hydrogenation upgrading Quality reaction process R30 combined processing; the present invention has the advantages of saving investment, saving energy consumption and simplifying operation due to process integration.

Description

technical field [0001] A high aromatics hydrothermal cracking method for combined fractionation of feed oil and produced oil, in the fractionation process AFRAC, high aromatics BF such as medium and low temperature coal tar and stream R10P-L based on the first hydrogenation reaction effluent R10P combined fractionation to obtain light Fraction ML, heavy fraction MH and possible residual oil MR, at least a part of MH enters the first hydrogenation reaction process R10 as hydrocarbon feedstock R10F for hydrothermal cracking reaction R10R to obtain the first hydrogenation reaction effluent R10P: separation of R10P is possible The hydrocarbon oil stream R10P-L containing solids and the gas R10P-V, the stream R10P-VXX based on R10P-V and the stream R20P-VXX based on ML or the hydrofinishing reaction effluent R20P based on ML can enter the third hydrogenation upgrading Quality reaction process R30 combined processing; the present invention has the advantages of saving investment, sa...

Claims

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Application Information

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IPC IPC(8): C10G67/02C10G67/00
CPCC10G67/02C10G67/00C10G2300/1037
Inventor 何巨堂何艺帆
Owner 何巨堂