Injection method and injection equipment of hydrogenation reactor sulfur replenishing agent in direct coal liquefaction process

A technology of hydrogenation reactor and direct coal liquefaction, applied in the petroleum industry, hydrocarbon oil cracking, hydrocarbon oil treatment and other directions, can solve the problems of high energy consumption and long sulfur replenishment process, and achieve the effect of reducing energy consumption and shortening the process.

Active Publication Date: 2018-04-03
CHNA ENERGY INVESTMENT CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims to provide a method and equipment for injecting sulfur supplementation agent into hydrogenation reactor in direct coal liquefaction process, so as to solve the technical problems of long sulfur supplementation process and high energy consumption in the prior art

Method used

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  • Injection method and injection equipment of hydrogenation reactor sulfur replenishing agent in direct coal liquefaction process
  • Injection method and injection equipment of hydrogenation reactor sulfur replenishing agent in direct coal liquefaction process
  • Injection method and injection equipment of hydrogenation reactor sulfur replenishing agent in direct coal liquefaction process

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Experimental program
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Effect test

Embodiment 1

[0039] Such as figure 1 As shown, in the coal direct liquefaction technology, the hydrogen sulfide of the sewage stripping unit is 2300kg / h, the hydrogen sulfide of the desulfurization unit is 3600kg / h, and the hydrogen sulfide from coal hydrogenation with low methanol eluting sulfur is 2200kg / h, and the coal liquefaction is 100kg / h h, part of the hydrogen sulfide in a total of 8200kg / h, hydrogen sulfide at 0.5MPa and 45°C enters the primary buffer tank 11, is lifted by the primary compressor 21 to 3.7MPa and pressed into the secondary buffer tank 12, and then The secondary compressor 22 raises the hydrogen sulfide pressure in the secondary buffer tank 12 to 8.2 MPa and presses it into the tertiary buffer tank 13, and then the tertiary compressor 23 raises the hydrogen sulfide pressure in the tertiary buffer tank 13 to 8.2 MPa. 18Mp is injected into the coal liquefaction primary hydrogenation reactor 51 and the secondary hydrogenation reactor 52 to meet the required partial pr...

Embodiment 2

[0041] Such as figure 2 As shown, in the hydrogenation stabilization technology, the hydrogen sulfide of the sewage stripping unit is 2300kg / h, the hydrogen sulfide of the desulfurization unit is 3600kg / h, and the hydrogen sulfide from coal hydrogenation with low methanol eluting sulfur is 2200kg / h, and the coal liquefaction is 100kg / h h, part of the hydrogen sulfide in a total of 8200kg / h, hydrogen sulfide at 0.5MPa and 45°C enters the primary buffer tank 11, is lifted by the primary compressor 21 to 2.9MPa and pressed into the secondary buffer tank 12, and then The secondary compressor 22 raises the hydrogen sulfide pressure in the secondary buffer tank 12 to 6.4MPa and presses it into the tertiary buffer tank 13, and then the tertiary compressor 23 raises the hydrogen sulfide pressure in the tertiary buffer tank 13 to 6.4 MPa. 14Mp is injected in the hydrogenation stabilization reactor 50; perhaps hydrogen sulfide in the secondary buffer tank 12 is pressed into the second ...

Embodiment 3

[0043] Such as image 3 As shown, in the hydrogenation upgrading technology, the hydrogen sulfide of the sewage stripping unit is 2300kg / h, the hydrogen sulfide of the desulfurization unit is 3600kg / h, and the hydrogen sulfide from coal hydrogenation with low methanol eluting sulfur is 2200kg / h, and the coal liquefaction is 100kg / h, part of the hydrogen sulfide in a total of 8200kg / h, hydrogen sulfide at 0.5MPa and 45°C enters the primary buffer tank 11, is lifted by the primary compressor 21 to 2.9MPa and pressed into the secondary buffer tank 12, and then The hydrogen sulfide pressure in the secondary buffer tank 12 is raised to 6.3 MPa by the secondary compressor 22 and pressed into the tertiary buffer tank 13, and then the hydrogen sulfide pressure in the tertiary buffer tank 13 is raised by the tertiary compressor 23 to 14Mp into the primary hydrogenation reactor 51 and the secondary hydrogenation reactor 52 of hydrogenation upgrading; in order to ensure that the concent...

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PUM

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Abstract

The invention discloses a method and device for injecting a sulfur supplementing agent into a hydrogenation reactor in a direct coal liquefaction process. The injecting method comprises the following steps that hydrogen sulfide produced in the direct coal liquefaction process serves as the sulfur supplementing agent to be injected into the hydrogenation reactor. According to the technical scheme, the intermediate raw material hydrogen sulfide from a whole factory directly serves as a vulcanizing agent to be injected into a hydrogenation catalytic cracking reactor in the direct coal liquefaction process. On one hand, the process is shortened, and the energy consumption is reduced; on the other hand, the hydrogen amount consumed when elemental sulfur is adopted as the sulfur supplementing agent to react with hydrogen in the hydrogenation reactor to generate the hydrogen sulfide in the prior art is saved.

Description

technical field [0001] The invention relates to the field of chemical industry, in particular to a method and equipment for injecting a sulfur replenishing agent into a hydrogenation reactor in a direct coal liquefaction process. Background technique [0002] In the direct coal liquefaction technology, the coal liquefaction, hydrogenation stabilization, and hydrogenation restructuring reactors use sulfurized catalysts, which require a certain amount of H in the circulating hydrogen. 2 S partial pressure or H 2 S concentration to ensure that the catalyst has sufficient activity. Due to the low sulfur content in coal liquefied oil, less hydrogen sulfide is produced in the reaction, so sulfur supplementation is required during normal operation. [0003] In hydrocatalytic cracking technology, organic sulfides with high sulfur content, low decomposition temperature, low toxicity, easy storage, and low cost are usually selected as vulcanizing agents, such as elemental sulfur (S ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G47/00C10G49/00C10G45/00
CPCC10G45/00C10G47/00C10G49/00
Inventor 苏志强徐志新于强
Owner CHNA ENERGY INVESTMENT CORP LTD
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