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Catalytic conversion method and apparatus for upgrading poor gasoline

A low-quality gasoline and catalytic cracking technology, applied in the field of hydrocarbon oil refining, can solve the problems of limited operation flexibility of the device, influence of the selectivity of the target product, complicated process flow, etc., and achieve the effect of reducing the sulfur content

Inactive Publication Date: 2003-03-12
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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  • Catalytic conversion method and apparatus for upgrading poor gasoline
  • Catalytic conversion method and apparatus for upgrading poor gasoline
  • Catalytic conversion method and apparatus for upgrading poor gasoline

Examples

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Embodiment 1

[0029] On the catalytic conversion test device of the present invention for upgrading low-quality gasoline as shown in the accompanying drawings, Daqing FCC gasoline was upgraded, and the processing capacity of low-quality gasoline was 15 kg / day. The catalyst used is LRC-99 industrial balancer, and the raw material of the heavy oil riser is Daqing atmospheric residual oil. The operating conditions and product distribution of the heavy oil riser are shown in Table 1, and the operating conditions and product distribution of the gasoline riser are shown in Table 2. See Table 3 for quality. The agent-oil ratio in the table is the weight ratio of catalyst and raw material, and other embodiments are the same.

Embodiment 2

[0031] 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

[0033] 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 catalytic converting process for upgrading poor-quality gasoline with high olefine content incldues a conventional catalytic cracking step for heavy oil and a catalytic converting step for upgrading said gasoline. It is characterized by in that two steps a common catalyst regenerator and a same catalyst are used. It can decrease olefine content by 15-50 vol% and S content by 5-30% and increase RON by 0.2-2 units.

Description

technical field [0001] The invention belongs to the field of hydrocarbon oil refining, and in particular relates to a catalytic conversion method and a device for upgrading inferior gasoline. Background technique [0002] Petroleum processing, especially some gasoline produced by secondary processing has high olefin 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 redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G55/06
Inventor 王龙延张立新汤海涛王文柯刘金龙张韩
Owner SINOPEC LUOYANG PETROCHEM ENG CORP
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