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Gasoline catalytically converting method and reactor

A reactor and re-catalysis technology, applied in the petroleum industry, hydrocarbon oil treatment, hydrotreating process, etc., can solve problems such as low efficiency, and achieve the effect of improving the ratio of agent to oil, the ratio of large agent to oil, and the low space velocity.

Inactive Publication Date: 2007-01-03
洛阳石化设备研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This solution utilizes low-temperature catalyst reaction to solve the problem of overcracking caused by high catalyst temperature, but the conversion of gasoline in a low-activity spent catalyst environment results in low efficiency

Method used

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  • Gasoline catalytically converting method and reactor
  • Gasoline catalytically converting method and reactor
  • Gasoline catalytically converting method and reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiment 1, gasoline recatalytic conversion reactor, is made up of catalyst mixing section 12, gasoline gasification section 13, reforming reaction section 14, material lead-out section 15 that penetrate from bottom to top, catalyst mixing section 12 is provided with regenerated catalyst inlet Pipe 11 and lifting medium inlet 17-1, gasoline gasification section 13 is provided with gasoline inlet 18-1, catalyst mixing section 12 and material lead-out section 15 are provided with catalyst return pipe 16, material lead-out section 15 is provided with lead-out pipe 15 -1.

[0030] The anti-re-equipment is composed of raw oil riser reactor 2, gasoline reactor 1, settler 3, stripper 4 and regenerator 5. Hydrocarbon raw materials are subjected to catalytic cracking reaction in feed oil riser reactor 2; gasoline is reacted in gasoline reactor 1.

[0031] In the gasoline reactor 1, the regenerated catalyst 52 from the regeneration standpipe 53 and the slide valve 54 enters th...

Embodiment 2

[0036]Embodiment 2, gasoline recatalytic conversion reactor, is made up of catalyst mixing section 12, gasoline gasification section 13, reforming reaction section 14, material lead-out section 15 that penetrate from bottom to top, catalyst mixing section 12 is provided with regenerated catalyst inlet Pipe 11 and lifting medium inlet 17-1, gasoline gasification section 13 is provided with gasoline inlet 18-1, catalyst mixing section 12 and material lead-out section 15 are provided with catalyst return pipe 16, material lead-out section 15 is provided with lead-out pipe 15 -1. 19 is the backflow catalyst, and 20 is the slide valve. 52 is a regeneration catalyst, 54 is a slide valve, and 11 is a regeneration catalyst inlet pipe.

[0037] The anti-re-equipment is composed of raw oil riser reactor, gasoline reactor, settler, stripper and regenerator. Hydrocarbon feedstock undergoes catalytic cracking reaction in the raw oil riser reactor, and gasoline 18 reacts in the gasoline re...

Embodiment 3

[0042] Embodiment 3, gasoline recatalytic conversion reactor, is made up of catalyst mixing section 12, gasoline gasification section 13, reforming reaction section 14, material lead-out section 15 that penetrate from bottom to top, catalyst mixing section 12 is provided with regenerated catalyst inlet Pipe 11 and lifting gas inlet 17-1, reforming reaction section 14 is provided with gasoline inlet 18-1, is provided with catalyst return pipe 16 between catalyst mixing section 12 and material lead-out section 15, and material lead-out section 15 is provided with lead-out pipe 15 -1. The diameter of the catalyst mixing section 12 is twice the diameter of the gasoline gasification section 13 , the reforming reaction section 14 and the material extraction section 15 . 17 is lift gas, 18 is gasoline, 19 is backflow catalyst, and 20 is slide valve. 52 is a regeneration catalyst, 54 is a slide valve, and 11 is a regeneration catalyst inlet pipe.

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PUM

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Abstract

The gasoline catalytically re-converting method and reactor belongs to the field of petroleum refining technology. Before the catalyst and reacted oil-gas flow is discharged from the reactor, partial catalyst is led out, returned through the reflux pipe to the bottom of the gasoline reactor and mixed with regenerated catalyst to lower the temperature of the regenerated catalyst, so that inferior gasoline is made to contact with low temperature and high activity catalyst in high catalyst / oil ratio and for relatively long time for catalytically converting to modify or to convert into low carbon olefin. The modifying section of the reactor may be a convenient riser, a fluidized bed or their combination. The present invention can lower the content of olefin in gasoline to below 20 % and eliminate sulfur of 70 %.

Description

technical field [0001] The invention belongs to the technical field of petroleum refining, in particular to a method and a reactor for recatalyzing gasoline to improve its quality. Background technique [0002] About 85% of my country's commercial gasoline comes from catalytic cracking units. The quality of catalytically cracked gasoline is not ideal. Generally, the olefin content is 45% (v)-60% (v), and the sulfur content is also relatively high. Gasoline rich in olefins has poor thermal stability, which affects the combustion of internal combustion engines, increases the emission of hydrocarbons and carbon monoxide, and pollutes the environment. The goal of environmental protection is to require that in the gasoline components, the olefin content is below 25% (v), and the sulfur content is less than 100ppm. This poses a severe challenge to our country's oil refining units. In addition, it is a new requirement for catalytic cracking units to produce as many low-carbon ol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G69/04
Inventor 石宝珍
Owner 洛阳石化设备研究所
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