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Coal-based high-energy-density fuel and preparation method thereof

A high-energy-density, coal-based technology, applied in the petroleum industry, hydroprocessing process, hydrocarbon oil treatment, etc., can solve the problem that it is difficult to meet the higher performance requirements of jet fuel for new high-performance aircraft, and achieve the benefit of industrialization Production, high volume calorific value, effect of reducing preparation steps

Inactive Publication Date: 2018-11-23
CCTEG CHINA COAL RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its density is only 0.85-0.90g / cm 3 , the energy density is 38-39MJ / L, which is still difficult to meet the higher performance requirements of new high-performance aircraft for jet fuel (density greater than 1g / cm 3 , energy density 40MJ / L)

Method used

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  • Coal-based high-energy-density fuel and preparation method thereof
  • Coal-based high-energy-density fuel and preparation method thereof

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preparation example Construction

[0030] A kind of preparation method of coal-based high energy density fuel that one embodiment of the present invention proposes, it comprises:

[0031] Separation and enrichment of coal-based derived oil to produce aromatic-rich components: the light oil fraction obtained from coal-based derived oil is used as raw material, separated and enriched to obtain light aromatic-rich components;

[0032] Diels-Alder chemical synthesis: put the light aromatic-rich component, norbornene and acidic catalyst into the reactor, seal it and replace it with an inert gas, place it in a constant temperature oil bath device, and carry out the Diels-Alder reaction , after the reaction is finished, cool to room temperature, remove the solid catalyst with a high-speed centrifuge, and then use a rotary evaporator to remove excess solvents rich in light aromatic components in the filtrate to obtain a synthetic product; the Diels-Alder chemical reaction equation is as shown in (1):

[0033]

[003...

Embodiment 1

[0055] A kind of preparation method of coal-based high energy density fuel that one embodiment of the present invention proposes, it comprises:

[0056] Get 500g rich light aromatics component model compound; Wherein, the mass ratio of benzene, toluene and p-xylene in the rich light aromatics component model compound is 2:2:1;

[0057] 500g of rich light aromatic components, 100g of norbornene and 5g of MCM-22 molecular sieve catalyst were added to the synthesis reaction kettle, and the reaction kettle was sealed after replacing the kettle with nitrogen for 5 times, the stirring paddle was turned on, and the rotating speed was adjusted to 500 rpm. The temperature of the constant temperature oil bath device was raised to 180° C. to react for 3 hours. After the reaction, the excess light aromatic components were distilled off to obtain 202 g of synthetic products; wherein, the conversion rate of norbornene was 99.3%;

[0058] Take 100g of the synthesized product and 4g of 4wt% ...

Embodiment 2

[0062] A kind of preparation method of coal-based high energy density fuel that one embodiment of the present invention proposes, it comprises:

[0063] Take 5kg of coal direct liquefaction light distillate oil (the volume fraction of naphthenes and aromatics, that is, the potential content of aromatics is 72%). After the fractionation tower fractionates and removes C6-components, the content of naphthenes in the raw material reaches more than 80%, which is an excellent heavy oil. Whole aroma raw material. After catalytic reforming, 2500g of light aromatics-rich components can be obtained, wherein the volume fraction of one-ring BTX aromatics (benzene, toluene and p-xylene) is 72%;

[0064] Add 400g of rich light aromatic components, 100g of norbornene and 5g of MCM-22 molecular sieve catalyst into the synthesis reactor, replace the reactor with nitrogen for 5 times, seal the reactor, open the stirring paddle, and adjust the rotating speed to 500 rpm. The temperature of the c...

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Abstract

The invention relates to a coal-based high-energy-density fuel and a preparation method thereof. The preparation method comprises the following steps that a light oil fraction obtained from coal-basedderived oil serves as a raw material, and separation and enrichment are carried out to obtain a light arene-rich component; the light arene-rich component, norbornene and an acid catalyst are placedin a reaction kettle, inert gas is introduced, and Diels-Alder reaction is carried out to obtain a synthetic product; the synthetic product and a hydrogenation catalyst are placed into the reaction kettle, inert gas and hydrogen are introduced, and catalytic hydrogenation reaction is carried out to obtain a hydrogenation stabilization product; and the hydrogenation stabilization product is centrifuged and filtered to obtain the coal-based high-energy-density fuel. The preparation method for chemical synthesis is simple, the coal-based high-energy-density fuel with high volumetric specific heatcapacity, high energy density and better thermal oxidation stability is obtained, and the method is more suitable for a high-performance aircraft fuel.

Description

technical field [0001] The invention relates to the field of fuel preparation, in particular to a coal-based high energy density fuel and a preparation method thereof. Background technique [0002] With the development of modern high technology, new high-performance aircraft such as supersonic aircraft, launch vehicles and supersonic missiles require the fuel used to have higher density and energy density (volume calorific value). For an aircraft with a fixed volume, the greater the fuel density, the more fuel it can carry, and the higher the energy density, the greater the propulsion energy provided by the fuel per unit volume, and the longer the range; keeping the performance of the aircraft unchanged, The use of high-energy-density fuel can effectively reduce the volume of the fuel tank, realize the miniaturization of the aircraft, and improve its maneuverability and penetration capability. It is reported that after using high energy density fuel RJ-4 instead of JP-5, th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/14
CPCC10G67/14C10G2300/1096C10G2300/308C10G2300/4006C10G2300/4012C10G2300/4062C10G2300/70
Inventor 毛学锋胡发亭陈贵锋李文博李军芳赵鹏钟金龙朱肖曼刘敏常秋连颜丙峰李伟林
Owner CCTEG CHINA COAL RES INST