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A method for producing high-density jet fuel by hydrogenation of medium and low temperature coal tar

A technology of low-temperature coal tar and jet fuel, which is applied in the fields of hydrotreating process, petroleum industry, and hydrocarbon oil treatment. It can solve problems such as pollution and low yield of jet fuel, and achieve high mass density, volume calorific value, and high temperature. Pyrolytic stability and high density, effect of improving utilization value

Inactive Publication Date: 2017-09-26
NORTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method produces certain pollution to the environment during the production process, and the yield of jet fuel is low

Method used

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  • A method for producing high-density jet fuel by hydrogenation of medium and low temperature coal tar
  • A method for producing high-density jet fuel by hydrogenation of medium and low temperature coal tar
  • A method for producing high-density jet fuel by hydrogenation of medium and low temperature coal tar

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The method for producing high-density jet fuel by hydrogenation of the above-mentioned medium and low temperature coal tar specifically consists of the following steps:

[0029] (1) Hydrotreating of coal tar

[0030] Mix medium-low temperature coal tar and hydrogen into the hydrogenation reactor, heat it to the reaction temperature, and carry out the hydrogenation reaction through the hydrogenation protection catalyst bed and the hydrogenation refining catalyst bed in sequence. The hydrogen partial pressure is 13MPa, and the hydrogenation protection The reaction temperature of the catalyst bed is 200°C, the reaction temperature of the hydrofining catalyst bed is 375°C, the volume ratio of hydrogen to oil is 1350:1, and the average liquid volume space velocity of the hydrogenation protection catalyst bed is 1.0h -1 , the average liquid volume space velocity of the hydrofining catalyst is 0.45h -1 , gas-liquid separation after the reaction to obtain hydrogenated oil;

...

Embodiment 2

[0049] The method for producing high-density jet fuel by hydrogenation of the above-mentioned medium and low temperature coal tar specifically consists of the following steps:

[0050] (1) Hydrotreating of coal tar

[0051] Mix medium-low temperature coal tar and hydrogen into the hydrogenation reactor, heat it to the reaction temperature, and carry out the hydrogenation reaction through the hydrogenation protection catalyst bed and the hydrogenation refining catalyst bed in sequence. The hydrogen partial pressure is 12MPa, and the hydrogenation protection The reaction temperature of the catalyst bed is 180°C, the reaction temperature of the hydrofining catalyst bed is 360°C, the volume ratio of hydrogen to oil is 1200:1, and the average liquid volume space velocity of the hydrogenation protection catalyst bed is 0.8h -1 , the average liquid volume space velocity of the hydrofining catalyst is 0.4h -1 , gas-liquid separation after the reaction to obtain hydrogenated oil;

[...

Embodiment 3

[0059] The method for producing high-density jet fuel by hydrogenation of the above-mentioned medium and low temperature coal tar specifically consists of the following steps:

[0060] (1) Hydrotreating of coal tar

[0061] Mix medium-low temperature coal tar and hydrogen into the hydrogenation reactor, heat it to the reaction temperature, and carry out the hydrogenation reaction through the hydrogenation protection catalyst bed and the hydrogenation refining catalyst bed in sequence. The hydrogen partial pressure is 14MPa, and the hydrogenation protection The reaction temperature of the catalyst bed is 210°C, the reaction temperature of the hydrofining catalyst bed is 390°C, the volume ratio of hydrogen to oil is 1500:1, and the average liquid volume space velocity of the hydrogenation protection catalyst bed is 1.1h -1 , the average liquid volume space velocity of the hydrofining catalyst is 0.5h -1 , gas-liquid separation after the reaction to obtain hydrogenated oil;

[...

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Abstract

The invention relates to a method for producing high-density jet fuel by hydrogenation of medium and low temperature coal tar. In the method, firstly, the medium and low temperature coal tar and hydrogen are mixed and heated, and the hydrogenation reaction is carried out successively through the hydrogenation protection catalyst and the hydrogenation refining catalyst. Naphtha, crude jet fuel and tail oil are obtained after product fractionation, and the crude jet fuel is refined with clay to obtain high-density No. 6 jet fuel with good oxidation stability, good emulsification resistance and good insulation. The present invention In view of the characteristics of large amount of cycloalkanes and aromatics in coal tar hydrogenation products, the hydrogenation-clay refining coupling process method is used to process coal tar into naphtha, jet fuel, etc. under specific process parameters and specific catalyst conditions. High value-added products, this method extends the coal tar hydrogenation industry chain, improves the utilization value of coal tar, and also expands the source of military fuel to better meet the oil demand for new weapons and equipment.

Description

technical field [0001] The invention belongs to the technical field of coal tar processing, in particular to a method for producing high-density jet fuel from coal tar. technical background [0002] In recent years, the contradiction between the shortage of oil and gas resources in my country and the development of the national economy has become increasingly prominent. my country has abundant coal reserves, and promoting the idea of ​​coal-based diversified energy development has become an important technical means for my country to adjust and optimize its energy structure. Among them, the use of coal pyrolysis, coking or gasification by-product coal tar to produce light fuel technology through hydrogenation upgrading can not only alleviate the energy situation of shortage of petroleum resources, but also improve the comprehensive utilization value of coal tar and solve the problem of coal Problems such as environmental pollution caused by low-value utilization of tar. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/00
CPCC10G67/00C10G2300/201
Inventor 李冬裴亮军薛凤凤袁扬李稳宏
Owner NORTHWEST UNIV
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