Vehicle fuel oil synthesized from coal-based chemical liquefied hydrogenation material and preparation method of vehicle fuel oil

Abstract

The invention belongs to the technical field of synthetic fuel oil, and particularly relates to vehicle fuel oil synthesized from a coal-based chemical liquefied hydrogenation material and a preparation method of the vehicle fuel oil, and the vehicle fuel oil comprises the following components in parts by mass: 12-40 parts of basic component oil; 8-68 parts of an antiknock agent; 19-62 parts of a density regulator; 3-50 parts of an ignition accelerator; the basic component oil comprises liquid wax and naphtha; the antiknock agent is prepared from dimethylbenzene, trimethylbenzene, alkylated oil, methyl tertiary butyl ether, isooctane and pentane; the density regulator comprises C9 and C10 heavy aromatics, white oil, aviation kerosene and solvent oil; the ignition accelerant comprises raffinate oil, topped oil, C5, light hydrocarbon and light oil. According to the invention, the vehicle fuel oil is prepared from the coal-based chemical liquefied hydrogenation material as the raw material, the dependence on petroleum resources is reduced, and through the synergistic effect of the basic component oil, the antiknock agent, the density regulator and the ignition accelerator, the vehicle fuel oil has the anti-knock property, the combustion efficiency and the low-temperature performance, and is excellent, low-carbon and environment-friendly vehicle fuel oil.

Description

Technical Field

[0001] The present invention belongs to the technical field of synthetic fuel, and particularly relates to a vehicle fuel synthesized from coal-based chemical liquefaction hydrogenation feedstock and a preparation method thereof. Background Art

[0002] The overall energy characteristic of our country is "rich in coal, short of oil, and with gas". With the transformation of the energy structure and the improvement of environmental protection requirements in our country, the high dependence of traditional vehicle fuels on petroleum resources and the pollution problems caused by their combustion have become increasingly prominent.

[0003] Therefore, coal-to-liquid fuel with coal as the main raw material has become a research hotspot. Coal-based chemical liquefaction hydrogenation feedstock refers to an intermediate product obtained by taking coal as the raw material, converting it into liquid hydrocarbon substances through a liquefaction process, and then subjecting it to hydrogenation treatment, such as liquid wax, naphtha, white oil, light oil, coal diesel, etc. This method can convert abundant coal resources into vehicle fuels, replace traditional petroleum products, significantly reduce our country's dependence on imported oil, and at the same time, coal-based vehicle fuels have the advantages of low emissions of sulfides and nitrogen oxides.

[0004] However, currently, the synthesized coal-based vehicle fuels are prone to problems such as low combustion efficiency, insufficient anti-knock performance, and poor low-temperature fluidity, and it is difficult to meet the strict standards of vehicle fuels. Summary of the Invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present invention provides a vehicle fuel synthesized from coal-based chemical liquefaction hydrogenation feedstock and a preparation method thereof. By using coal-based chemical liquefaction hydrogenation feedstock as the raw material to prepare vehicle fuel, it reduces the dependence on petroleum resources, reduces carbon emissions and sulfur pollution, has good environmental protection performance, and at the same time, through the synergistic effect of the basic component oil, anti-knock agent, density regulator, and ignition promoter, the vehicle fuel takes into account good anti-knock performance, combustion efficiency, and low-temperature performance, and the overall performance is about 20% higher than that of petroleum gasoline and diesel on the current market, and it is an excellent low-carbon and environmentally friendly vehicle fuel.

[0006] The specific technical solution adopted by the present invention is as follows:

[0007] A vehicle fuel synthesized from coal-based chemical liquefaction hydrogenation feedstock, by mass, comprises the following components:

[0008] 12 - 40 parts of basic component oil;

[0009] 8 - 68 parts of anti-knock agent;

[0010] 19 - 62 parts of density regulator;

[0011] 3 - 50 parts of ignition promoter;

[0012] The basic component oil includes any one or both of liquid wax and hydrogenated naphtha;

[0013] The antiknock agent includes any one or more of xylene, trimethylbenzene, alkylated oil, methyl tert-butyl ether, isooctane, and pentane;

[0014] The density regulator includes any one or more of C9, C10 heavy aromatics, white oil, aviation kerosene, and solvent oil;

[0015] The ignition promoter includes any one or more of raffinate oil, topped oil, C5, light hydrocarbon, and light oil.

[0016] The vehicle fuel, by mass fraction, specifically includes: 8-12 parts of liquid paraffin, 12-18 parts of hydrotreated naphtha, 12-18 parts of C10 heavy aromatics, 5-10 parts of light oil, 8-12 parts of white oil, 3-8 parts of solvent oil, 10-15 parts of C5, 12-16 parts of xylene, 6-10 parts of trimethylbenzene, 18-22 parts of alkylated oil, 15-20 parts of methyl tert-butyl ether, and 8-12 parts of C9.

[0017] The vehicle fuel, by mass fraction, specifically includes: 12-18 parts of hydrotreated naphtha, 10-15 parts of C10 heavy aromatics, 16-20 parts of raffinate oil, 12-16 parts of xylene, 4-6 parts of light oil, 6-10 parts of white oil, 8-12 parts of light hydrocarbon, 8-12 parts of C5, 16-20 parts of isooctane, and 18-22 parts of methyl tert-butyl ether.

[0018] The vehicle fuel, by mass fraction, specifically includes: 12-18 parts of hydrotreated naphtha, 8-12 parts of C10 heavy aromatics, 14-16 parts of topped oil, 14-16 parts of C5, 18-22 parts of xylene, 3-8 parts of white oil, 8-12 parts of light oil, 16-20 parts of alkylated oil, 8-12 parts of C9, and 8-12 parts of pentane.

[0019] The vehicle fuel, by mass fraction, further includes 8-12 parts of ethanol.

[0020] The vehicle fuel, by mass fraction, specifically includes: 32-40 parts of liquid paraffin, 12-18 parts of C10 heavy aromatics, 8-12 parts of white oil, 3-6 parts of light oil, 8-12 parts of C9, 8-12 parts of aviation kerosene, 8-12 parts of trimethylbenzene, and 3-6 parts of solvent oil.

[0021] The vehicle fuel, by mass fraction, further includes 12-16 parts of hydrotreated anthracene oil, 14-16 parts of hydrotreated coal diesel, and 8-12 parts of wax oil.

[0022] The vehicle fuel, by mass fraction, specifically includes: 32-38 parts of liquid paraffin, 8-12 parts of white oil, 14-16 parts of C10 heavy aromatics, 6-10 parts of light oil, 8-12 parts of C9, 8-12 parts of aviation kerosene, 6-10 parts of solvent oil, and 14-16 parts of trimethylbenzene.

[0023] The vehicle fuel, by mass fraction, further includes 15-20 parts of hydrogenated coal tar, 14-16 parts of hydrogenated catalytic diesel, and C10 heavy aromatics.

[0024] A preparation method of a vehicle fuel synthesized from coal-based chemical liquefied hydrogenation materials includes the following steps:

[0025] Weigh each component raw material according to the ratio, then heat the raw material tank to 60-80 °C. First, put the raw material with a density ≤ 0.8 kg / m 3 into the raw material tank and stir for 1-2 h, then put the raw material with a density > 0.8 kg / m 3 into the raw material tank and stir for 1-2 h, and then let it stand for 1-1.5 h to obtain the finished vehicle fuel.

[0026] The beneficial effects of the present invention are as follows:

[0027] 1. The vehicle fuel in the present invention uses coal-based chemical liquefied hydrogenation materials as raw materials, reduces the dependence on petroleum resources, reduces carbon emissions and sulfur pollution, has good environmental protection, and at the same time, through the synergistic effect of the basic component oil, anti-knock agent, density regulator, and ignition promoter, takes into account anti-knock performance, combustion efficiency, and low-temperature performance. The overall performance is about 20% higher than that of petroleum gasoline and diesel on the current market, and it is an excellent low-carbon and environmentally friendly vehicle fuel.

[0028] 2. In the present invention, coal-to-liquid wax and hydrogenated naphtha act as basic component oils; xylene, trimethylbenzene, alkylated oil, methyl tert-butyl ether, isooctane, and pentane mainly improve the octane number of the fuel and play an anti-knock role; C9 and C10 heavy aromatics, white oil, aviation kerosene, and solvent oil mainly play a role in adjusting the density; raffinate oil, topped oil, C5, light hydrocarbons, and light oil improve the combustion characteristics of the fuel, promote the rapid and efficient ignition of the fuel in the engine, thereby improving the starting performance and combustion efficiency of the engine, reducing incomplete combustion phenomena, and achieving the purpose of improving ignition performance; hydrogenated coal diesel, hydrogenated catalytic diesel, hydrogenated coal tar, and hydrogenated anthracene oil are used as blending components. Because they contain more high-carbon hydrocarbon compounds after hydrogenation treatment, they have a higher energy density and better combustion performance. After being added to the fuel system, they help to improve the long-lasting burn resistance of the fuel; ethanol can play an environmental protection and energy-saving role.

[0029] 3. The preparation method of the coal-based vehicle fuel in the present invention only requires mixing and stirring, without complex chemical reactions, has low energy consumption and high production efficiency. And in order to improve the mutual solubility between raw materials, heating is required during the stirring process, and at the same time, the method of adding small-density oil first and then large-density oil is used for stirring to further improve the mutual solubility between raw materials.

[0030] 4. Except for aviation kerosene, the raw materials in the present invention are all products of coal chemical industry. As a major country with large coal reserves, China has many coal chemical manufacturers such as Ningmei, Yintai, Future, Lu'an, Anlide, etc. Due to the large number of manufacturers, they compete with each other at low prices, further reducing the raw material cost. Detailed implementation manners

[0031] The present invention will be further described below in conjunction with specific embodiments:

[0032] The liquid paraffin in the present invention is coal-based liquid paraffin.

[0033] The solvent oil is No. 200 solvent oil refined from naphtha;

[0034] The alkylated oil, by weight, includes 70% isooctane, 16% dimethylpentane, 10% isobutane, and 4% other substances;

[0035] The C5, by weight, includes 50% pentadiene isomers, 20% pentene isomers, 25% pentane isomers, and 5% other substances;

[0036] The C9, by weight, includes 55% trimethylbenzene isomers, 25% methyl ethylbenzene isomers, 15% indane / styrene derivatives, and 5% other substances;

[0037] The C10, by weight, includes 45% tetramethylbenzene isomers, 25% diethylbenzene isomers, 15% butylbenzene, 10% naphthalene and methylnaphthalene, and 5% other substances;

[0038] The light hydrocarbon, by weight, includes 10% propane, 30% butane, 20% pentane isomers, 10% propene isomers, 15% butene isomers, 8% pentene isomers, 5% cyclopentane, and 2% other substances;

[0039] The light oil, by weight, includes 30% isobutane, 25% isobutene, 15% n-butane, 7% propene, 20% pentane, and 3% other substances. I. Specific embodiments

[0041] Example 1

[0042] Formulation: 10 parts of liquid paraffin, 15 parts of hydrogenated naphtha, 15 parts of C10 heavy aromatic hydrocarbons, 8 parts of light oil, 10 parts of white oil, 5 parts of solvent oil, 12 parts of C5, 15 parts of xylene, 8 parts of trimethylbenzene, 20 parts of alkylated oil, 18 parts of methyl tert-butyl ether, and 10 parts of C9.

[0043] Example 2

[0044] Formula: 15 parts of hydrotreated naphtha, 12 parts of C10 heavy aromatics, 18 parts of raffinate oil, 15 parts of xylene, 5 parts of light oil, 8 parts of white oil, 10 parts of light hydrocarbons, 10 parts of C5, 18 parts of isooctane, 20 parts of methyl tert-butyl ether, 10 parts of ethanol.

[0045] Example 3

[0046] Formula: 15 parts of hydrotreated naphtha, 10 parts of C10 heavy aromatics, 15 parts of topped oil, 15 parts of C5, 20 parts of xylene, 5 parts of white oil, 10 parts of light oil, 18 parts of alkylated oil, 10 parts of C9, 10 parts of pentane, 10 parts of ethanol.

[0047] Example 4

[0048] Formula: 35 parts of liquid paraffin, 15 parts of C10 heavy aromatics, 15 parts of hydrotreated anthracene oil, 10 parts of white oil, 5 parts of light oil, 10 parts of C9, 15 parts of hydrotreated coal diesel, 10 parts of aviation kerosene, 10 parts of trimethylbenzene, 5 parts of solvent oil, 10 parts of wax oil.

[0049] Example 5

[0050] Formula: 35 parts of liquid paraffin, 10 parts of white oil, 25 parts of C10 heavy aromatics, 8 parts of light oil, 18 parts of hydrotreated coal tar, 10 parts of C9, 15 parts of hydrotreated catalytic diesel, 10 parts of aviation kerosene, 8 parts of solvent oil, 15 parts of trimethylbenzene.

[0051] II. Performance Testing

[0052] The formulas of Examples 1 - 5 were respectively prepared into finished vehicle fuels according to the following steps:

[0053] Weigh each component raw material according to the ratio, then heat the raw material tank to 60 - 80 °C. First, put the raw materials with a density ≤ 0.8 kg / m 3 into the raw material tank and stir for 1 - 2 h, then put the raw materials with a density > 0.8 kg / m 3 into the raw material tank and stir for 1 - 2 h, and then let it stand for 1 - 1.5 h to obtain the finished vehicle fuel. The densities of each raw material in the present invention are shown in Table 1.

[0054] Among them, the fuel products prepared from Examples 1 - 3 are spark-ignition fuels, and the fuel products prepared from Examples 4 - 5 are compression-ignition fuels.

[0055] In addition, commercially available petroleum vehicle gasoline and vehicle diesel were purchased and used as Comparative Example 1, Comparative Example 2, and Comparative Example 3 respectively for comparison with Examples 1 - 5. Among them, Comparative Example 1 is 92# vehicle gasoline, Comparative Example 2 is 95# vehicle gasoline, and Comparative Example 3 is vehicle diesel

[0056] Examples 1 - 3 were tested according to the relevant testing standards in the national standard GB17930 - 2016 "Vehicle Gasoline", as shown in Table 2 specifically.

[0057] Examples 4 - 5 were tested according to the relevant test standards in the national standard GB19147 - 2016 "Automotive Diesel", as shown in Table 3 specifically.

[0058] Table 1

[0059] Substance <![CDATA[Density (unit: kg / m 3 )]]> Liquid paraffin 0.76 Hydrotreated naphtha 0.72 Xylene 0.86 Trimethylbenzene 0.88 Alkylated oil 0.71 Methyl tert-butyl ether 0.74 Isooctane 0.69 Pentane 0.63 C9 0.88 C10 heavy aromatics 0.95 White oil 0.82 Aviation kerosene 0.80 Solvent oil 0.78 Raffinate 0.68 Topped oil 0.66 C5 0.66 Light hydrocarbon 0.58 Light oil 0.65 Ethanol 0.79 Hydrotreated anthracene oil 0.95 Hydrotreated coal diesel 0.85 Hydrotreated coal tar 0.96 Hydrotreated catalytic diesel 0.88 Wax oil 0.90

[0060] Table 2

[0061]

[0062]

[0063] Table 3

[0064]

[0065]

Claims

1. A vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material, characterized in that: By mass, it includes the following components: 12-40 parts of basic component oil; 8-68 parts of anti-explosion agent; Density regulator 19-62 parts; 3-50 parts of ignition accelerator; The basic component oil includes any one or two of liquid wax and hydrogenated naphtha; The antiknock agent includes any one or more of xylene, trimethylbenzene, alkylate, methyl tert-butyl ether, isooctane and pentane; The density regulator includes any one or more of carbon nine, carbon ten heavy aromatics, white oil, jet fuel and solvent oil; The ignition accelerator includes any one or more of raffinate oil, topped oil, C5, light hydrocarbon and light oil.

2. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 1, characterized in that: The vehicle fuel, calculated by mass, specifically includes: 8-12 parts of liquid wax, 12-18 parts of hydrogenated naphtha, 12-18 parts of C10 heavy aromatics, 5-10 parts of light oil, 8-12 parts of white oil, 3-8 parts of solvent oil, 10-15 parts of C5, 12-16 parts of xylene, 6-10 parts of trimethylolbenzene, 18-22 parts of alkylate, 15-20 parts of methyl tert-butyl ether, and 8-12 parts of C9.

3. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 1, characterized in that: The vehicle fuel specifically includes, by mass, 12-18 parts of hydrogenated naphtha, 10-15 parts of C10 heavy aromatics, 16-20 parts of raffinate, 12-16 parts of xylene, 4-6 parts of light oil, 6-10 parts of white oil, 8-12 parts of light hydrocarbons, 8-12 parts of C5, 16-20 parts of isooctane, and 18-22 parts of methyl tert-butyl ether.

4. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 1, characterized in that: The vehicle fuel specifically includes, by mass, 12-18 parts of hydrogenated naphtha, 8-12 parts of C10 heavy aromatics, 14-16 parts of topped oil, 14-16 parts of C5, 18-22 parts of xylene, 3-8 parts of white oil, 8-12 parts of light oil, 16-20 parts of alkylate oil, 8-12 parts of C9, and 8-12 parts of pentane.

5. A vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to any one of claims 3-4, characterized in that: The vehicle fuel also includes 8-12 parts of ethanol by mass.

6. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 1, characterized in that: The vehicle fuel, calculated by mass, specifically includes: 32-40 parts of liquid wax, 12-18 parts of C10 heavy aromatics, 8-12 parts of white oil, 3-6 parts of light oil, 8-12 parts of C9, 8-12 parts of jet fuel, 8-12 parts of trimethylolbenzene, and 3-6 parts of solvent oil.

7. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 6, characterized in that: The vehicle fuel also includes 12-16 parts of hydrogenated anthracene oil, 14-16 parts of hydrogenated coal and wood, and 8-12 parts of wax oil, calculated by weight.

8. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 1, characterized in that: The vehicle fuel, calculated by mass, specifically includes: 32-38 parts of liquid wax, 8-12 parts of white oil, 24-26 parts of C10 heavy aromatics, 6-10 parts of light oil, 8-12 parts of C9, 8-12 parts of jet fuel, 6-10 parts of solvent oil, and 14-16 parts of trimethylolbenzene.

9. The vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 8, characterized in that: The vehicle fuel also includes 15-20 parts of hydrogenated coal tar and 14-16 parts of hydrogenated diesel, calculated by weight.

10. A method for preparing a vehicle fuel synthesized from coal-based chemical liquefied hydrogenation material according to claim 1, characterized in that: The preparation method comprises the following steps: Weigh the raw materials of each component according to the ratio, then heat the raw material tank to 60-80℃, first make the density ≤0.8kg / m 3 The raw materials with density>0.8kg / m 3 The raw materials are put into a raw material tank and stirred for 1-2 hours, and then allowed to stand for 1-1.5 hours to obtain a finished vehicle fuel.

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