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
CN103184073AActive Publication Date: 2013-07-03CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2013-07-03

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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.
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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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