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Hydrocracking method for producing gasoline blending component with high octane value

A technology for high-octane gasoline and blending components, which is applied in chemical instruments and methods, hydrocarbon oil cracking, hydrotreating processes, etc., and can solve the problem of low octane gasoline products

Active Publication Date: 2013-07-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Specifically, it is to solve the problem of low octane number of gasoline products when the existing technology processes inferior diesel oil to produce gasoline

Method used

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  • Hydrocracking method for producing gasoline blending component with high octane value
  • Hydrocracking method for producing gasoline blending component with high octane value
  • Hydrocracking method for producing gasoline blending component with high octane value

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] The raw material oil D enters the hydrogenation reactor together with hydrogen, and successively contacts and reacts with the hydrofinishing catalyst A in the first reaction zone and the hydrocracking catalyst C in the second reaction zone. The effluent after the reaction enters the high-pressure reactor without any intermediate separation. Separator, low-pressure separator, after cooling and separation, the hydrogen-rich gas is recycled, and the liquid product enters the fractionation system to be separated into gasoline fraction and diesel fraction. The nitride content in the product is 1.7μg / g, and the denitrification rate is as high as 99.5%. Control the saturation depth of aromatics in the first reaction zone, that is, compared with diesel feedstock oil, the saturation rate of aromatics with double rings or more in the reaction effluent of the first reaction zone is 62.7%, and the reaction effluent in the first reaction zone Based on the liquid component, the conte...

Embodiment 2

[0079] The raw material oil E enters the hydrogenation reactor together with hydrogen, and successively contacts and reacts with the hydrofinishing catalyst A in the first reaction zone and the hydrocracking catalyst C in the second reaction zone. The effluent after the reaction enters the high-pressure reactor without any intermediate separation. Separator, low-pressure separator, after cooling and separation, the hydrogen-rich gas is recycled, and the liquid product enters the fractionation system to be separated into gasoline fraction and diesel fraction. The nitride content in the product is 8.9μg / g, and the denitrification rate is as high as 99.2%. Control the saturation depth of aromatics in the first reaction zone, that is, compared with diesel feedstock oil, the saturation rate of aromatics with double rings or more in the reaction effluent of the first reaction zone is 67.3%, and the reaction effluent in the first reaction zone Based on the liquid component, the conte...

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Abstract

The invention relates to a hyfrocracking method for producing a gasoline blending component with a high octane value. The hyfrocracking method controls aromatic saturation depth in a first reaction zone, that is, compared with a diesel oil raw oil, a saturation rate of aromatics with two or more aromatic rings in reaction effluent in the first reaction zone is over 60%, the content of monocyclic aromatics is increased to over 40 mass% on basis of liquid components of the reaction effluent in the first reaction zone; and at the same time, organic nitrogen content in feeding materials of a second reaction zone is no higher than 10 [mu]g.g<-1>. The method for controlling the aromatic saturation depth of a hydrofining section and reinforcing hydro-denitrification activity of a hydrofining catalyst, gasoline fractions with sulfur content less than 50 [mu]g / g and a research octane number higher than 90 can be produced from inferior diesel fractions with high content of the aromatics.

Description

technical field [0001] The invention belongs to a hydrocracking method for obtaining low-boiling distillate hydrocarbon oil in the presence of hydrogen, more specifically, a method for producing high-octane gasoline blending components from inferior diesel oil. Background technique [0002] With the rapid growth of market demand for clean oil products, the catalytic cracking process in my country has developed rapidly as the main process for producing light oil products. At the same time, the output of catalytic diesel oil produced by catalytic cracking process has increased year by year, and catalytic diesel oil accounts for about half of the share of commercial diesel oil in my country. one third. However, due to heavy crude oil, the quality of catalytic diesel oil deteriorates, mainly manifested in high content of aromatics, sulfur, nitrogen, and olefins, low cetane number and poor stability, wherein the total aromatics content ranges from 50% by mass to 90% by mass The c...

Claims

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Application Information

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IPC IPC(8): C10G67/14C10G45/08C10G47/12B01J23/888
Inventor 鞠雪艳张毓莹蒋东红胡志海王锦业聂红李大东
Owner CHINA PETROLEUM & CHEM CORP
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