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A kind of hydrogenation reforming method of producing high-octane gasoline component or BTX raw material

A hydrogenation upgrading and upgrading technology, which is applied in the fields of hydrogenation treatment process, hydrocarbon oil treatment, petroleum industry, etc., can solve the problems of low yield, and achieve the effects of increasing yield, improving reaction efficiency, and excellent selectivity

Active Publication Date: 2016-10-19
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, the present invention provides a combined loading method for modified catalysts, which mainly solves the problem of low yields of target products such as benzene, toluene, and xylene when producing high-octane gasoline components or BTX raw materials in the prior art

Method used

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  • A kind of hydrogenation reforming method of producing high-octane gasoline component or BTX raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] The raw material oil E enters the hydrofinishing reaction zone together with hydrogen, contacts and reacts with the protective agent A and the hydrofinishing catalyst B, and the reaction effluent from the hydrofinishing reaction zone enters the hydrofinishing reaction zone without any intermediate separation, and sequentially Contact and react with the first hydrogenation reforming catalyst C and the second hydrogenation reformation catalyst D. The reaction effluent from the hydrogenation upgrading reaction zone enters the separation facilities such as cold high-pressure separator, cold low-pressure separator, and fractionation tower in turn, and obtains light naphtha, heavy naphtha, and diesel fractions after cooling, separation, and fractionation. Among them, the diesel fraction can be used as a low-sulfur diesel blending component or returned to the hydrorefining reaction zone or hydroreforming reaction zone to continue to produce high-octane gasoline blending compone...

Embodiment 2

[0038] The raw material oil E enters the hydrofinishing reaction zone together with hydrogen, contacts and reacts with the protective agent A and the hydrofinishing catalyst B, and the reaction effluent from the hydrofinishing reaction zone enters the hydrofinishing reaction zone without any intermediate separation, and sequentially Contact and react with the first hydrogenation reforming catalyst C and the second hydrogenation reformation catalyst D. The reaction effluent from the hydrogenation upgrading reaction zone enters the separation facilities such as cold high-pressure separator, cold low-pressure separator, and fractionation tower in turn, and obtains light naphtha, heavy naphtha, and diesel fractions after cooling, separation, and fractionation. Among them, the diesel fraction can be used as a low-sulfur diesel blending component or returned to the hydrorefining reaction zone or hydroreforming reaction zone to continue to produce high-octane gasoline blending compone...

Embodiment 3

[0041] The raw material oil F enters the hydrofinishing reaction zone together with hydrogen, contacts and reacts with the protective agent A and the hydrofinishing catalyst B, and the reaction effluent from the hydrofinishing reaction zone enters the hydrofinishing reaction zone without any intermediate separation, and sequentially Contact and react with the first hydrogenation reforming catalyst C and the second hydrogenation reformation catalyst D. The reaction effluent from the hydrogenation upgrading reaction zone enters the separation facilities such as cold high-pressure separator, cold low-pressure separator, and fractionation tower in turn, and obtains light naphtha, heavy naphtha, and diesel fractions after cooling, separation, and fractionation. Among them, the diesel fraction can be used as a low-sulfur diesel blending component or returned to the hydrorefining reaction zone or hydroreforming reaction zone to continue to produce high-octane gasoline blending compone...

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Abstract

The invention relates to a hydro-upgrading method for producing a high-octane gasoline component or BTX raw material. The hydro-upgrading method for producing the high-octane gasoline component or BTX raw material comprises the following steps: mixing inferior diesel with hydrogen-enriched gas, introducing the obtained mixture into a hydrorefining reaction zone so that the mixture comes into contact with a hydrorefining catalyst to have reaction, enabling reaction effluent of the hydrorefining reaction zone to enter a hydro-upgrading reaction zone without passing through any intermediate separation facilities to sequentially come into contact and reaction with a first hydro-upgrading catalyst and a second hydro-upgrading catalyst, and cooling and separating effluent of the hydro-upgrading reaction zone, so that a hydrogen-rich gas and liquid products are obtained. By adopting the hydro-upgrading method for producing the high-octane gasoline component or BTX raw material, high-octane gasoline can be produced by adopting inferior diesel fraction as a raw material, and content of BTX in the high-octane gasoline fraction can be more than 40%.

Description

technical field [0001] The invention relates to a hydro-upgrading method for producing high-octane gasoline components or BTX raw materials from low-quality diesel oil. Background technique [0002] As crude oil becomes heavier and worse, the quality of catalytic cracking diesel is getting worse and the output is gradually increasing. In recent years, in order to increase the yield of light oil, the processing capacity and processing depth of the catalytic cracking unit in the refinery have been continuously improved, which has further led to an increase in the output of catalytic cracking diesel and a deterioration in its quality. This part of low-quality FCC diesel has the characteristics of high density, high aromatic content and low cetane number. In addition, in order to increase the output of vehicle fuel, some oil refineries have processed coal tar or direct coal liquefied oil, and some of the diesel fractions of coal tar or direct coal liquefied oil also have high d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G65/12
CPCC10G65/12C10G2300/305C10G2400/02
Inventor 蒋东红张毓莹胡志海辛靖龙湘云梁家林聂红
Owner CHINA PETROLEUM & CHEM CORP