Method and device for reducing olefine in gasoline

A technology for gasoline and olefins, applied in the field of reducing gasoline olefins, which can solve problems such as the limitation of device operation flexibility, limited reduction of gasoline olefin content, and the influence of target product selectivity, and achieve the effect of reducing sulfur content

Inactive Publication Date: 2003-03-12
LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

China University of Petroleum (East China) adopts two-stage series riser technology (CN1302843A), reacting oil and gas in series, and catalyst relay operation to achieve the purpose of increasing the yield of light oil and improving the quality of catalytic gasoline, but the technical process is complicated and the device operation is difficult. At the same time, due to the two-stage riser reaction oil-gas series operation, the gasoline upgrading reaction interacts with other component reactions, the target product selectivity is affected, and the olefin content in gasoline can be reduced by about 15 percentage points.

Method used

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  • Method and device for reducing olefine in gasoline
  • Method and device for reducing olefine in gasoline

Examples

Experimental program
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Effect test

Embodiment 1

[0027]On the catalytic conversion test device for upgrading inferior gasoline according to the present invention as shown in the drawings, Daqing catalytic cracking gasoline is upgraded. The catalyst used is LRC-99 industrial balancer, and the raw material of the heavy oil riser is Daqing crude oil atmospheric residue. The operating conditions and product distribution of the heavy oil riser are shown in Table 1, the operating conditions and product distribution of the gasoline riser are shown in Table 2, and the quality of gasoline before and after upgrading is shown in Table 3. The agent-to-oil ratio in the table all refers to the weight ratio of the catalyst to the feedstock oil, and the same applies to other examples.

Embodiment 2

[0029] According to Example 1, the difference is that the reaction temperature of the gasoline riser is 440°C. The product distribution of gasoline riser operating conditions is shown in Table 2, and the quality of gasoline before and after upgrading is shown in Table 3.

Embodiment 3

[0031] According to Example 1, the difference is that the reaction temperature of the gasoline riser is 460°C. The product distribution of gasoline riser operating conditions is shown in Table 2, and the quality of gasoline before and after upgrading is shown in Table 3. Example 4

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Abstract

A process for decreasing olefine content of poor gasoline includes a conventional catalytic cracking step for heavy oil performed in lift tube reactor and a catalytic converting step for upgrading the poor gaosline with high olefine content performed in the lift tube reactor. It is characterized by that in two steps a common catalyst generator and a same catalyst are used. It can decrease olefine content by 15-50 % and S content by 10-30% and increase RON by 0.2-2 units.

Description

Technical field [0001] The invention belongs to the field of hydrocarbon oil refining, and particularly relates to a method and a device for reducing gasoline olefins. Background technique [0002] Petroleum processing, especially some gasoline produced by secondary processing, have high olefin content and sulfur content, and the quality of the gasoline produced by the raw material becomes heavier and deteriorates. On the one hand, olefins in gasoline help to increase its octane number. On the other hand, olefins produce more pollutants during the combustion process and pollute the environment. Although traditional hydrorefining can reduce the olefins in gasoline to a very low level, However, the octane rating is greatly lost. Therefore, at present, various domestic research institutions have developed various technologies for reducing the olefin content of gasoline. The Sinopec Research Institute of Petrochemical Technology has developed a GOR series catalyst to reduce the olefi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G55/06
Inventor 汤海涛陈俊武刘昱张庆宇谢恪谦陈曼桥李玖云
Owner LUOYANG PETROCHEMICAL ENG CORP SINOPEC
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