Method for increasing co-liquefaction conversion rate of low-rank coal/naphthenic base vacuum residue and diesel fraction content

A technology of vacuum residue and naphthenic group, which is applied in the preparation of liquid hydrocarbon mixture, petroleum industry, processing of hydrocarbon oil, etc., can solve the problems of low conversion rate of binary co-liquefaction, etc. Distillate content of diesel oil and the effect of preventing coking

Inactive Publication Date: 2017-05-10
XINJIANG UNIVERSITY
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] The present invention provides a method for improving the co-liquefaction conversion rate of low-rank coal / naphthenic vacuum residue and the content of diesel fraction, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of low-rank coal / naphthenic residue in the prior art. The problem of low conversion rate of binary co-liquefaction of alkyl vacuum residue

Method used

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  • Method for increasing co-liquefaction conversion rate of low-rank coal/naphthenic base vacuum residue and diesel fraction content
  • Method for increasing co-liquefaction conversion rate of low-rank coal/naphthenic base vacuum residue and diesel fraction content
  • Method for increasing co-liquefaction conversion rate of low-rank coal/naphthenic base vacuum residue and diesel fraction content

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Embodiment 1

[0014] Embodiment 1, the method for improving the co-liquefaction conversion rate of low-rank coal / naphthenic vacuum residue and the content of diesel fractions, the raw materials include 7 to 13 parts of low-rank coal, naphthenic vacuum residue 7 parts to 13 parts and 15 parts to 25 parts of washing oil, the method for improving the co-liquefaction conversion rate of low-rank coal / naphthenic vacuum residue and the content of diesel fraction is carried out as follows: the first step, the required amount The naphthenic vacuum residue and wash oil are mixed and stirred to obtain a mixed oil sample; in the second step, the required amount of low-rank coal and catalyst are added to the mixed oil sample and stirred to prepare a low-rank coal / naphthenic Vacuum residue / wash oil ternary mixed oil coal; the third step, add low-rank coal / naphthenic vacuum residue / wash oil ternary mixed oil coal and agate balls into the ball mill tank on the ball mill, and add Low-rank coal / naphthenic va...

Embodiment 2

[0028] Embodiment 2, the method for improving the co-liquefaction conversion rate of low-rank coal / naphthenic vacuum residue and the content of diesel fraction, the raw materials include 7 or 13 parts of low-rank coal, naphthenic vacuum residue 7 parts or 13 parts and 15 parts or 25 parts of washing oil, the method for improving the co-liquefaction conversion rate of low-rank coal / naphthenic vacuum residue and the content of diesel fraction is carried out as follows: the first step, the required amount The naphthenic vacuum residue and wash oil are mixed and stirred to obtain a mixed oil sample; in the second step, the required amount of low-rank coal and catalyst are added to the mixed oil sample and stirred to prepare a low-rank coal / naphthenic Vacuum residue / wash oil ternary mixed oil coal; the third step, add low-rank coal / naphthenic vacuum residue / wash oil ternary mixed oil coal and agate balls into the ball mill tank on the ball mill, and add Low-rank coal / naphthenic vac...

Embodiment 3

[0029] Embodiment 3, as the optimization of above-mentioned embodiment, in the second step, catalyzer is ferric oxide and sulfur, and wherein ferric oxide is 0.9 part to 1.1 part by weight, and sulfur is 0.4 part by weight to 0.6 share.

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Abstract

The invention relates to the technical field of a method for promoting a reaction performance of the coal and provides the method for increasing co-liquefaction conversion rate of low-rank coal / naphthenic base vacuum residue and diesel fraction content. The raw material includes the following components in parts by weight: 7-13 parts of low-rank coal, 7-13 parts of naphthenic base vacuum residue and 15-25 parts of scrubbing oil. According to the method for increasing co-liquefaction conversion rate of low-rank coal / naphthenic base vacuum residue and diesel fraction content disclosed by the invention, a third matter, namely, the scrubbing oil, is added as a pulping agent and a hydrogen donor solvent to form a ternary co-liquefaction system; a mechanical chemical method is adopted for activating and preprocessing, so that the liquidation reaction activation energy of the coal powder is obviously reduced and the reaction performance thereof is increased; the liquidation reaction activation energy of the coal powder is reduced, so that the liquidation reaction temperature is reduced, the low-rank coal / naphthenic base vacuum residue is effectively prevented from locally coking in a reactor and the purpose of increasing the co-liquefaction conversion rate of low-rank coal / naphthenic base vacuum residue and the diesel fraction content is achieved.

Description

technical field [0001] The invention relates to the technical field of a method for improving the reaction performance of coal, and relates to a method for improving the co-liquefaction conversion rate of low-rank coal / naphthenic vacuum residue and the content of diesel fraction. Background technique [0002] The co-hydrogenation liquefaction technology of coal and naphthenic vacuum residue (hereinafter referred to as residue) is based on the fact that the residue contains a large amount of polycyclic aromatic hydrocarbons and naphthenes, and has good hydrogen supply under the conditions of coal liquefaction. Integrate the hydrogenation and lightening of residual oil with the direct liquefaction of coal. The former serves as the hydrogen carrier and slurrying agent for the direct liquefaction of coal, so as to realize simultaneous catalytic hydrogenation of coal and residual oil, and cracking to produce light and medium oils. Complementing each other, it can not only solve m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00C10G1/06C10G1/08B02C17/10
CPCC10G1/083B02C17/10C10G1/002C10G1/065C10G2300/10C10G2300/1077
Inventor 马凤云孙志强吴航航廖静刘景梅钟梅孔令涛
Owner XINJIANG UNIVERSITY
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