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Hydrogenation treatment process for sulfur-containing/high-sulfur crude oil

A technology for hydrotreating and high-sulfur crude oil, which is applied in the treatment of hydrocarbon oil, petroleum industry, refined hydrocarbon oil, etc., and can solve problems such as the inability to meet the processing requirements of sulfur-containing crude oil, so as to save investment costs, reduce equipment investment, and improve product quality. quality effect

Inactive Publication Date: 2017-07-07
PETROCHINA CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a hydrotreating process for sulfur-containing / high-sulfur crude oil in order to solve the problem that the prior art cannot meet the processing requirements of sour crude oil

Method used

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  • Hydrogenation treatment process for sulfur-containing/high-sulfur crude oil
  • Hydrogenation treatment process for sulfur-containing/high-sulfur crude oil
  • Hydrogenation treatment process for sulfur-containing/high-sulfur crude oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A hydrotreating process for sour / high sulfur crude oil, such as figure 1 As shown, the crude oil is desulfurized through the hydrodesulfurization reaction unit (B) before the initial distillation tower (A).

[0036] The reactor in the hydrodesulfurization reaction unit (B) is a three-stage fixed-bed reactor.

[0037] The crude oil treating agent in the reactor in the hydrodesulfurization reaction unit (B) is a hydroprotecting agent, a hydrodemetallizing agent and a hydrodesulfurizing agent.

[0038] The working process is as follows:

[0039] The desalted and dehydrated crude oil X is mixed with hydrogen, heated by a heating furnace to reach a reaction temperature of 320°C, and enters the hydroprocessing unit (B), where (B) is a three-stage fixed-bed reactor, which undergoes hydrogenation in sequence The protecting agent, the hydrodemetallizing agent and the hydrodesulfurizing agent are subjected to hydrodesulfurization treatment in the presence of a catalyst.

[004...

Embodiment 2

[0049] A hydrotreating process for sour / high sulfur crude oil, such as figure 2 It is shown that a hydrodesulfurization reaction unit (B) is added between the initial distillation tower (A) and the atmospheric tower (C) to desulfurize the crude oil.

[0050] The reactor in the hydrodesulfurization reaction unit (B) is a three-stage fixed-bed reactor.

[0051] The crude oil treating agent in the reactor in the hydrodesulfurization reaction unit (B) is a hydroprotecting agent, a hydrodemetallizing agent and a hydrodesulfurizing agent.

[0052] Crude oil X after desalination and dehydration treatment enters the primary distillation tower (A) after heat exchange with steam, the inlet temperature is 210°C, the top oil is obtained from the top of the tower, and part of the primary top oil component enters the storage tank or enters the downstream process after cooling. The other part is refluxed to the initial distillation tower; the initial side oil is obtained in the tower; the ...

Embodiment 3

[0059] A hydrotreating process for sour / high sulfur crude oil, such as figure 1 It shows that a hydrodesulfurization reaction unit (B) is added before the initial distillation tower (A) to desulfurize the crude oil.

[0060] The reactor in the hydrodesulfurization reaction unit (B) is a two-stage slurry bed reactor.

[0061] The crude oil treating agent in the reactor in the hydrodesulfurization reaction unit (B) is a hydrodemetallization agent and a hydrodesulfurization agent.

[0062] The desalted and dehydrated crude oil Y is mixed with hydrogen, heated by a heating furnace to reach a reaction temperature of 320°C, and then enters the hydroprocessing unit (B), where (B) is a three-stage fixed-bed reactor, which undergoes hydrogenation protection in sequence Agent, hydrodemetallization agent and hydrodesulfurization agent, in the presence of catalyst, carry out hydrodesulfurization treatment.

[0063] The product after hydrodesulfurization treatment is cooled and separated...

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Abstract

The invention relates to a hydrotreating process for sulfur-containing / high-sulfur crude oil, belonging to the technical fields of petroleum processing and petrochemical industry. In the pre-hydrodesulfurization process of the sulfur-containing / high-sulfur crude oil of the present invention, the crude oil is desulfurized through a pre-hydrodesulfurization reaction unit before the atmospheric tower. The invention is especially suitable for upgrading and transforming an established petroleum refining enterprise, and transforming the existing equipment in the original factory, thereby saving the investment cost. After pre-hydrodesulfurization treatment, the sulfur content of the whole fraction is reduced, which greatly reduces the desulfurization pressure of the subsequent crude oil processing unit, and the intermediate product can be directly sent to the downstream deep processing unit without additional treatment.

Description

technical field [0001] The invention relates to a crude oil pretreatment method, more specifically, a method for hydrodesulfurization pretreatment of sulfur-containing / high-sulfur crude oil, belonging to the technical fields of petroleum processing and petrochemical industry. Background technique [0002] With the gradual reduction of conventional crude oil reserves, the world's oil refining and processing industry is facing the severe challenge of increasingly heavy and inferior crude oil resources. The sulfur content of the world's crude oil is constantly increasing, and currently the crude oil with a sulfur content of more than 1% accounts for more than 55% of the world's total crude oil production. [0003] In recent years, as the international oil price continues to fluctuate at a low level and the domestic oil market continues to develop and change, imported crude oil has become the main raw material for my country's petrochemical enterprises. In 2015, my country's cr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G45/08C10G45/16
CPCC10G45/08C10G45/16C10G2300/107C10G2300/1077C10G2300/202C10G2300/205
Inventor 侯瑞君孙克宁张春刚
Owner PETROCHINA CO LTD
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