Method and device for reducing olefine in gasoline

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

Inactive Publication Date: 2004-10-20
SINOPEC LUOYANG PETROCHEM ENG CORP
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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

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Embodiment 1

[0027]In accordance with the catalytic conversion test device of the present invention for upgrading inferior gasoline as shown in the accompanying drawings, Daqing FCC gasoline was upgraded, the catalyst used was LRC-99 industrial balancer, and the heavy oil riser raw material was 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 ratios mentioned in the table all refer to the weight ratio of the catalyst to the feed stock oil, and the other examples are the same.

Embodiment 2

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

Embodiment 3

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

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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, in particular to a method and a device for reducing gasoline olefins. Background technique [0002] Petroleum processing, especially some gasoline produced by secondary processing has high olefin content and sulfur content, and the weight and deterioration of raw materials make the quality of gasoline produced worse. On the one hand, olefins in gasoline are beneficial to increase its octane number. On the other hand, olefins produce more pollutants during the combustion process and pollute the environment. Although traditional hydrofining can reduce the olefins in gasoline to a very low level, the But the octane number is greatly lost. Therefore, at present, various domestic research institutes have developed various technologies for reducing the olefin content of gasoline. The Sinopec Petrochemical Research Institute has developed a GOR series catalyst for reducing the olefin content of ...

Claims

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Application Information

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Patent Type & AuthorityPatents(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
OwnerSINOPEC LUOYANG PETROCHEM ENG CORP