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Method for improving gasoline stability

A stability and gasoline technology, applied in the petroleum industry, refined hydrocarbon oil, etc., can solve the problems of complex operations, unstable properties, increased costs, etc., and achieve the effect of improving stability and increasing the induction period

Inactive Publication Date: 2004-11-03
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, thermal cracking products also contain a large amount of olefins and diolefins, which are very unstable and not suitable for storage
[0007] In industry, in order to improve the stability of gasoline, the method of hydrogenation can not only remove conjugated dienes and active α-olefins, make various unsaturated components in oil products into saturated hydrocarbons, but also remove To remove some harmful non-hydrocarbon components in oil, but the method of hydrogenation needs to add special equipment, and the operation is much more complicated, which will undoubtedly increase the cost of production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] 100ml of deep pyrolysis gasoline 1# (induction period is 210 minutes, the same below), add 0.3ml of acrylic acid and mix evenly, pump into the reactor at a feed rate of 30 g / h, and the reaction temperature is 120°C. The treated raw oil was collected and its induction period was measured, which increased from 210 minutes to 450 minutes.

Embodiment 2

[0023] Add 100ml deep pyrolysis gasoline 1#, add 3% benzene solution of 3ml acrylic acid and mix evenly, pump into the reactor with the feed rate of 30g / hour, the reaction temperature is 120°C. The treated raw oil was collected and its induction period was measured, and the induction period increased from 210 minutes to 450 minutes.

Embodiment 3

[0025] With 1000ml FCC gasoline (induction period 480 minutes, the same below), add 3% benzene solution of 3ml acrylic acid and mix uniformly, pump into the reactor with the feeding rate of 30 g / h, the reaction temperature is 140 ℃. The treated crude oil was collected and its induction period was measured, and the induction period increased from 480 minutes to 900 minutes.

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PUM

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Abstract

The method of raising gasoline stability features that gasoline is made to contact with one of the following reagents or their mixture under temperature higher than 60 deg.c. The said reagents include compound in the general expression of CH2=CHCOOR1 or R2CH=CHCOR3, maleic acid and maleic anhydride, where, R1 is C1-C3 alkyl group, R2 is H or C1-C7 alkyl group, and R3 is H or OH. The volume ratio between the reagent and gasoline is 1 to 10-10000. The said method can increase the induction period of gasoline material obviously.

Description

technical field [0001] The invention relates to a method for improving the stability of gasoline, more specifically a method for improving the stability of gasoline by non-hydrogenation means. Background technique [0002] The stability of gasoline refers to its ability to maintain its original quality under storage or use conditions. Stability can be divided into physical stability, chemical stability and thermal stability. Its chemical stability is also called anti-oxidation stability, which refers to the ability of gasoline to resist oxidation and deterioration under normal temperature and liquid phase conditions. Only gasoline with good chemical stability is suitable for long-term storage ("Properties and Applications of Liquid Fuels", edited by Liu Zhizhong, Xu Shihai, and Yao Rujie, Sinopec Press, first edition in July 2000). [0003] The most fundamental reason affecting the oxidative deterioration of gasoline is the chemical composition of gasoline itself. The com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G29/22
Inventor 谢文华黄燕民谢朝钢付强慕旭宏宗保宁罗一斌舒兴田
Owner CHINA PETROLEUM & CHEM CORP
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