Fuel oxidation desulfurization catalyst and preparation and application methods thereof

An oxidative desulfurization and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, refining with oxygen-containing compounds, etc., can solve the problems of a large amount of waste water, a large amount of catalyst consumption, and difficulties in separation and recovery, and reduce the cost of industrial application , the catalyst consumption is reduced, and the preparation process is simple

Inactive Publication Date: 2018-07-13
GUANGDONG UNIV OF PETROCHEMICAL TECH
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  • Abstract
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Problems solved by technology

However, this technical solution has the following disadvantages: (1) the amount of catalyst used is relatively large (40g / L), and the industrial application cost is high
(2) The catalyst is easily soluble in organic solvents, which makes it difficult to separate and recover after use
(3) Oxidizing agent (H 2 o 2 ) utilization rate is low, and the oxygen-sulfur ratio is as high as 43:1, much higher than the theoretical value of the stoichiometric ratio of 2:1
due to H 2 o 2 Contains 70% water, too much H 2 o 2 Use will produce a large amount of waste water, which is not conducive to industrial promotion and application

Method used

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  • Fuel oxidation desulfurization catalyst and preparation and application methods thereof
  • Fuel oxidation desulfurization catalyst and preparation and application methods thereof
  • Fuel oxidation desulfurization catalyst and preparation and application methods thereof

Examples

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preparation example Construction

[0029] The preparation method of the fuel oil oxidative desulfurization catalyst is that graphene oxide solution and choline phosphotungstate solution are mixed and reacted to obtain graphene oxide-loaded choline phosphotungstate, that is, a fuel oil oxidative desulfurization catalyst.

[0030] Preferably, in the preparation method of the catalyst, the mass ratio of the graphene oxide solution to choline phosphotungstate is 1: (1.0~1.6); more preferably, in the preparation method of the catalyst, the graphene oxide solution and choline phosphotungstate The mass ratio of tungstate is 1:1.

[0031] Preferably, in the preparation method of the catalyst, the mass concentration of the graphene oxide solution is 0.8% to 1.2%; further preferably, in the preparation method of the catalyst, the mass concentration of the graphene oxide solution is 1%.

[0032] Preferably, in the preparation method of the catalyst, the mass concentration of the choline phosphotungstate solution is 8% to ...

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Abstract

The invention discloses a fuel oxidation desulfurization catalyst and preparation and application methods of the fuel oxidation desulfurization catalyst. The fuel oxidation desulfurization catalyst isgraphene oxide loaded choline phosphowolframate. Meanwhile, the invention discloses the preparation method of the fuel oxidation desulfurization catalyst. The invention further discloses the method for applying the fuel oxidation desulfurization catalyst to oxidation desulfurization of the fuel. The preparation process of the catalyst is simple, the dibenzothiophene sulfide difficult to remove inthe fuel is effectively reduced, the use level of the catalyst is greatly reduced, the catalyst is not soluble in an extraction agent and is easy to recover, the use ratio of an oxidizing agent is increased, the cost for industrial application is lowered, and the catalyst has an excellent application value in the catalytic oxidation desulfurization of the fuel.

Description

technical field [0001] The invention relates to a fuel oil oxidation desulfurization catalyst and its preparation and application method. Background technique [0002] With the popularization of automobiles, the environmental pollution caused by automobile exhaust has seriously affected people's production and life. Therefore, my country has stepped up revisions and proposed higher clean fuel standards. The "National V" fuel oil standard stipulates that the maximum sulfur content in fuel oil shall not exceed 10mg / kg. The increasingly stringent fuel oil standards have forced major oil refining companies to seek more efficient fuel desulfurization production technologies. The current fuel oil desulfurization technology is mainly divided into two categories: hydrodesulfurization technology and non-hydrogenation desulfurization technology. Currently, hydrodesulfurization technology is mostly used in industry, but this technology has poor removal effect on thiophene compounds, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34C10G27/12
CPCB01J31/34C10G27/12C10G2300/202
Inventor 曾兴业梁荣锋陈华楷杨嘉鸿吴世逵
Owner GUANGDONG UNIV OF PETROCHEMICAL TECH
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