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Method for catalyzing oxygenizing desulfurizing straight-run gasoline

A technology for catalytic oxidation desulfurization and straight-run gasoline, applied in the field of gasoline desulfurization, can solve the problem of high cost of hydrodesulfurization, and achieve the effect of obvious catalytic oxidation effect and simple operation.

Inactive Publication Date: 2007-03-07
SOUTHWEST PETROLEUM UNIV
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a method for catalytic oxidation desulfurization of straight-run gasoline, which overcomes the high cost of hydrodesulfurization in the prior art, the cost of non-hydrodesulfurization catalysts and oxidizers, and the post-treatment problems. Easy to obtain, low cost and can be recycled without exhaust emissions; the treatment operation of oxidized gasoline is simple and feasible, which can ensure the quality and yield of gasoline products in the gasoline oxidation desulfurization refining process

Method used

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Examples

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Effect test

example 1

[0032] According to the ratio of catalyst to gasoline by volume of 16:1, 320ml of NO was introduced into the straight-run gasoline with a sulfur content of 3009μg / g provided by the Sichuan Northwest Gas Mine of PetroChina Southwest Oil and Gas Field Company. x , using oxygen as an oxidant, react at 20°C for 50 minutes, pour out the oxidized gasoline after the reaction, and recycle the catalyst. Oxygenated gasoline was treated by the oxidized oil treatment method 1 to obtain refined straight-run gasoline with a sulfur content of 261μgg and a desulfurization rate of 91.33%.

example 2

[0034] According to the ratio of catalyst to gasoline by volume of 26:1, 520ml of NO was introduced into straight-run gasoline with a sulfur content of 3009μg / g provided by Sichuan Northwest Gas Mine of PetroChina Southwest Oil and Gas Field Branch Company. x, using oxygen as an oxidant, react at 20°C for 50 minutes, pour out the oxidized gasoline after the reaction, and recycle the catalyst. The oxidized gasoline is treated with the oxidized oil treatment method four to obtain refined straight-run gasoline with a sulfur content of 177 μg / g and a desulfurization rate of 94.12%.

example 3

[0036] According to the volume ratio of catalyst and gasoline of 32:1, 640ml of NO was introduced into straight-run gasoline with a sulfur content of 3009μg / g provided by Sichuan Northwest Gas Mine of PetroChina Southwest Oil and Gas Field Branch Company. x , using oxygen as an oxidant, react at 20°C for 50 minutes, pour out the oxidized gasoline after the reaction, and recycle the catalyst. Oxygenated gasoline was treated by the oxidized gasoline treatment method four to obtain refined straight-run gasoline with a sulfur content of 177 μg / g and a desulfurization rate of 94.12%.

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PUM

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Abstract

The invention discloses a catalyzing oxidizing desulfurizing method of straight gasoline, which comprises the following steps: (1) allocating nitrogen oxide and gasoline with bulk rate at 10:1-36:1 in the reactor; (2) aerating oxygen; stirring; reacting under 20-50 deg.c for 30-90 min; (3) blending active carclazyte / oxidized gasoline with weight rate at 0.5-5% to distill; or distilling the oxidized gasoline; blending active carclazyte / oxidized gasoline with weight rate at 0.5-5%; adsorbing; filtering to obtain the product.

Description

technical field [0001] The invention relates to a gasoline desulfurization method, in particular to a method for removing sulfur-containing compounds in straight-run gasoline. Background technique [0002] With the continuous enhancement of people's awareness of environmental protection, the pollution caused by automobile exhaust has become the focus of people's attention. The specifications of motor gasoline indicators such as oxygen content, vapor pressure, benzene content, total aromatics content, boiling point, olefin content and sulfur content are becoming more and more stringent, especially sulfur content. The use of automobile exhaust catalytic converters is the best way to reduce the emission of automobile exhaust pollutants, but high-performance exhaust converters require high-quality fuel oil, especially the sulfur content in gasoline has a significant impact on the performance of exhaust catalytic converters influences. For this reason, the United States, Europe...

Claims

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Application Information

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IPC IPC(8): C10G27/04
Inventor 唐晓东何柏崔盈贤李晶晶
Owner SOUTHWEST PETROLEUM UNIV
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