Method for producing large-specific-gravity aviation kerosene through coal tar

A technology for aviation kerosene and coal tar, which is applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve the problems of shortening the operation cycle of the hydrocracking unit, easy deactivation of the hydrocracking catalyst, etc. Alleviate the effect of increased demand, less demanding requirements, and easy availability of raw materials

Active Publication Date: 2016-11-23
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when using this method to process heavy coal direct liquefaction oil, the hydrocracking catalyst is very easy to deactivate. In order to ensure the stability of the activity of the hydrocracking catalyst, it is necessary to use a weaker hydrocracking catalyst; and in order to ensure stability and higher The conversion rate needs to be operated at high temperature, so the operation cycle of the hydrocracking unit in the process route is significantly shorter than that of the conventional hydrocracking unit by using this method

Method used

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  • Method for producing large-specific-gravity aviation kerosene through coal tar
  • Method for producing large-specific-gravity aviation kerosene through coal tar
  • Method for producing large-specific-gravity aviation kerosene through coal tar

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Experimental program
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Embodiment 1

[0092] The above-mentioned 230°C diesel fraction. The specific reaction conditions are shown in Table 3, the properties of the product naphtha fraction are shown in Table 4, the properties of the product diesel fraction are shown in Table 5, and the properties of the product high-density aviation kerosene fraction are shown in Table 6.

[0093] As can be seen from Table 4, the density of the product naphtha of the present embodiment is 0.7778g / cm 3 , the sulfur content is less than 10μg / g, and the aromatic potential is 65%.

[0094] As can be seen from Table 5, the cetane number of the product diesel fraction of the present embodiment is 49, and the density is 0.8544g / cm 3 , the sulfur content is less than 10 μg / g, and the total aromatics content is 8.0% by weight.

[0095] As can be seen from Table 6, the density of the product large specific gravity aviation kerosene fraction of the present embodiment is 0.8399g / cm 3 , the sulfur content is less than 10μg / g, the smoke poi...

Embodiment 2

[0097] The above-mentioned 260°C diesel fraction. The specific reaction conditions are shown in Table 3, the properties of the product naphtha fraction are shown in Table 4, the properties of the product diesel fraction are shown in Table 5, and the properties of the product high-density aviation kerosene fraction are shown in Table 6.

[0098] As can be seen from Table 4, the density of the naphtha of the present embodiment is 0.7756g / cm 3 , the sulfur content is less than 10μg / g, and the aromatic potential is 62%.

[0099] As can be seen from Table 5, the cetane number of the diesel fraction of the present embodiment is 47, and the density is 0.8628g / cm 3 , the sulfur content is less than 10 μg / g, and the total aromatics content is 9.6% by weight.

[0100] As can be seen from Table 6, the density of the large specific gravity aviation kerosene fraction of the present embodiment is 0.8422g / cm 3 , the sulfur content is less than 10μg / g, the smoke point is >20mm, the closed ...

Embodiment 3

[0102] The above-mentioned 280°C diesel fraction. The specific reaction conditions are shown in Table 3, the properties of the product naphtha fraction are shown in Table 4, the properties of the product diesel fraction are shown in Table 5, and the properties of the product high-density aviation kerosene fraction are shown in Table 6.

[0103] As can be seen from Table 4, the density of the naphtha of the present embodiment is 0.7758g / cm 3 , the sulfur content is less than 10μg / g, and the aromatic potential is 63%.

[0104] As can be seen from Table 5, the cetane number of the diesel fraction of the present embodiment is 45.5, and the density is 0.8703g / cm 3 , the sulfur content is less than 10 μg / g, and the total aromatics content is 10.0% by weight.

[0105] As can be seen from Table 6, the density of the large specific gravity aviation kerosene fraction of the present embodiment is 0.8458g / cm 3 , the sulfur content is less than 10μg / g, the smoke point is >20mm, the clos...

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Abstract

The invention relates to the field of coal tar processing and discloses a method for producing large-specific-gravity aviation kerosene through coal tar. The method comprises the steps that the coal tar raw material is distilled to be divided into a coal tar gasoline fraction, a coal tar diesel oil fraction and a coal tar heavy fraction; secondly, the coal tar gasoline fraction, the coal tar diesel oil fraction and hydrogen enter a hydrogenation protective reaction zone, and reaction conditions are controlled to enable the saturation factors of bicycle-arene and arene with more than two rings in reaction effluent to be 30-60 wt%; thirdly, the reaction effluent obtained in the second step enters a hydrofining reaction zone to react, and hydrofining reaction effluent is obtained; fourthly, the hydrofining reaction effluent is sequentially subjected to separation and fractionation. The large-specific-gravity aviation kerosene produced through the method is good in quality and high in yield. The method is simple, the raw material is easy to get, and the requirement for the raw material is not harsh.

Description

technical field [0001] The invention relates to the field of coal tar processing, in particular to a method for producing high specific gravity aviation kerosene from coal tar. Background technique [0002] With the sustained and rapid development of social economy, my country's demand for petroleum products is also increasing. However, petroleum is a non-renewable energy source and is facing a crisis of depletion. In contrast, China has relatively abundant coal reserves, so producing liquid fuel from coal has become a basic direction of coal processing and utilization. [0003] On the other hand, with the rapid growth of the international and domestic steel industry, the coking industry is showing a high growth trend, the output of coal tar is increasing, and the clean processing and effective utilization of coal tar are becoming more and more important. At present, the conventional processing method is to cut various fractions concentrated in coal tar components through ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G67/02
Inventor 李猛高晓冬胡志海聂红辛靖王子文卫剑
Owner CHINA PETROLEUM & CHEM CORP
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