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Catalytic conversion method for reducing sulfur content of gasoline

A catalytic conversion method and a technology of sulfur content, applied in the field of catalytic conversion to reduce gasoline sulfur content, can solve the problems of gasoline octane number reduction, high operating costs, large investment, etc., and achieve sulfur content reduction, simple operation, and easy implementation Effect

Inactive Publication Date: 2004-05-05
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Catalytic raw material pretreatment and catalytic gasoline hydrogenation upgrading desulfurization effect are good, but the investment is large, the operating cost is high, and hydrogenation will cause olefin saturation and reduce the octane number of gasoline

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] This example illustrates that the sulfur content of gasoline can be significantly reduced by adopting the method provided by the invention.

[0021] 5 g PdCl 2 Dissolve in 180 g deionized water, add 5 g 36% HCl to help PdCl 2 of the dissolution. Add 310 grams of LV-23 to the resulting solution, stir evenly and place it for 1 hour, then dry it at 120°C, put it into a muffle furnace and bake it at 600°C for 4 hours, and then you can get the Pd loaded with metal element described in the present invention. catalyst, abbreviated as Pd-1.

[0022] In a fixed fluidized bed catalytic cracking unit, the gasoline raw materials shown in Table 1 are heated by a preheater and then mixed with atomized steam and enter the reactor. Contact and react with the regenerated Pd-1 catalyst in the reactor. Separation of the formed oil gas and catalyst. After the reaction oil and gas are cooled in three stages, cracked gas and liquid products are collected respectively. After the reactio...

Embodiment 2

[0024] This example illustrates that the sulfur content of gasoline can be significantly reduced by adopting the method provided by the invention.

[0025] 25.11 g of ZnCl 2 Dissolve it in 180 grams of water, add 310 grams of LV-23 to the resulting solution, stir evenly and let it stand for 1 hour, then dry it at 120 ° C, and then put it in a muffle furnace and bake it at 600 ° C for 4 hours to obtain the Zn-loaded catalytic cracking Catalyst, abbreviated as Zn-1.

[0026] 5 g PdCl 2 Dissolve in 250 grams of water, add 5 grams of 36% HCl to help PdCl 2 of the dissolution. Add 310 grams of Zn-1 to the resulting solution, stir evenly and place it for 1 hour, then dry it at 120°C, put it into a muffle furnace and bake it at 600°C for 4 hours, and then you can get the supported metal elements Zn and Zn in the present invention. The Pd catalyst is abbreviated as PdZn-1.

[0027] In a fixed fluidized bed catalytic cracking unit, the gasoline raw materials shown in Table 1 are h...

Embodiment 3

[0029] This example illustrates that the sulfur content of gasoline can be significantly reduced by adopting the method provided by the invention.

[0030] 14.82 g Co(NO 3 ) 2 ·6H 2O was dissolved in 180 grams of water. Add 310 grams of Zn-1 to the resulting solution, stir evenly and place it for 1 hour, then dry it at 120°C, put it into a muffle furnace and bake it at 600°C for 4 hours, and then you can get the supported metal elements Zn and Zn in the present invention. The catalyst of Co is abbreviated as CoZn-1.

[0031] In a fixed fluidized bed catalytic cracking unit, the gasoline raw materials shown in Table 1 are heated by a preheater and then mixed with atomized steam and enter the reactor. Contact and react with the regenerated CoZn-1 catalyst in the reactor. Separation of the formed oil gas and catalyst. After the reaction oil and gas are cooled in three stages, cracked gas and liquid products are collected respectively. After the reaction, the carbon-deposit...

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PUM

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Abstract

A catalytic transforming process for decreasing the content of S in gasoline includes atomizing the raw gasoline by water steam, contacting with the fluidized catalyticly cracking catalyst carring one of Ni, Co and Pd or the mixture of one of Ni, Co and Pd and Zn, reacting at 200-450 deg.c, separating the oil gas from catalyst, and regenerating the catalyst by stripping.

Description

technical field [0001] The present invention belongs to the catalytic conversion method of petroleum hydrocarbons in the absence of hydrogen, more specifically, a catalytic conversion method for reducing the sulfur content of gasoline. Background technique [0002] With the increasing requirements of environmental protection, all countries in the world are working to reduce the emission of harmful substances in automobile engine exhaust, and the control of gasoline composition is becoming more and more stringent. SO formed due to combustion of sulfur in gasoline x Emissions into the atmosphere will form acid rain, which will poison and deactivate the catalyst in the three-way catalytic converter that treats automobile exhaust in severe cases. At the same time, reducing the sulfur content in gasoline will help reduce NO in automobile exhaust x emissions. Therefore, the United States has implemented Phase II specifications for reformulated gasoline since January 1, 2000, req...

Claims

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Application Information

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IPC IPC(8): C10G11/02
Inventor 侯典国张久顺许友好崔淑英
Owner CHINA PETROLEUM & CHEM CORP