Method for using guanidyl-containing catalyst to conduct desulfurization on fuel oil

A technology of catalysts and fuel oils, applied in chemical instruments and methods, refining with oxygen-containing compounds, physical/chemical process catalysts, etc., can solve the problems that the reaction rate cannot be increased, the water phase and the oil phase are incompatible, etc., and the reaction rate can be achieved Fast, good regeneration, high sulfur removal effect

Inactive Publication Date: 2018-12-11
宁波高新区诠宝绶新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Oxidative desulfurization technology is an effective and widely used method. The hydrogen peroxide oxidation method has always been one of the commonly used methods, but due to the incompatibility of the water phase and the oil phase, the reaction rate cannot be increased.

Method used

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Examples

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Comparison scheme
Effect test

Embodiment 1

[0018] A method for desulfurizing fuel oil using a guanidine-containing catalyst, the preparation technical scheme is as follows:

[0019] According to the mass fraction, put 130 parts of fuel oil, 10 parts of ionic liquid, 8 parts of activated carbon, 2.5 parts of guanidine-based catalyst, and 30 parts of 20% hydrogen peroxide into the reactor, control the temperature at 70 ° C, and use it under vigorous stirring. The materials are mixed evenly and reacted for 90 minutes; then the catalyst is filtered out, the liquid phase is allowed to stand for stratification, and the upper layer is taken to complete the fuel desulfurization operation, and the ionic liquid is refined and recycled.

[0020] Described guanidine-containing catalyst is prepared according to the following scheme:

[0021] According to the number of parts by mass, 25 parts of mesoporous silica nanoparticles, 2.5 parts of sodium tripolyphosphate and 370 parts of 40% ethanol solution were added to the reaction kett...

Embodiment 2

[0027] A method for desulfurizing fuel oil using a guanidine-containing catalyst, the preparation technical scheme is as follows:

[0028] According to the mass fraction, put 100 parts of fuel oil, 1 part of ionic liquid, 5 parts of activated carbon, 0.5 parts of guanidine-based catalyst, and 10 parts of 10% hydrogen peroxide into the reactor, control the temperature at 50 ° C, and use it under vigorous stirring. The materials are mixed evenly and reacted for 60 minutes; then the catalyst is filtered out, the liquid phase is left to stand for stratification, and the upper layer is taken to complete the fuel desulfurization operation, and the ionic liquid is refined and recycled.

[0029] Described guanidine-containing catalyst is prepared according to the following scheme:

[0030] According to the number of parts by mass, 20 parts of mesoporous silica nanoparticles, 0.5 parts of sodium tripolyphosphate and 350 parts of 30%-50% ethanol solution were added to the reaction kettl...

Embodiment 3

[0036] A method for desulfurizing fuel oil using a guanidine-containing catalyst, the preparation technical scheme is as follows:

[0037] According to the mass fraction, put 150 parts of fuel oil, 20 parts of ionic liquid, 10 parts of activated carbon, 5 parts of guanidine-based catalyst, and 50 parts of 30% hydrogen peroxide into the reactor, control the temperature at 90 ° C, and use it under vigorous stirring. The materials are mixed evenly and reacted for 150 minutes; then the catalyst is filtered out, the liquid phase is left to stand for stratification, and the upper layer is taken to complete the fuel desulfurization operation, and the ionic liquid is refined and recycled. .

[0038] Described guanidine-containing catalyst is prepared according to the following scheme:

[0039]According to the number of parts by mass, 30 parts of mesoporous silica nanoparticles, 5 parts of sodium tripolyphosphate and 400 parts of 50% ethanol solution were added to the reaction kettle,...

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PUM

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Abstract

The invention relates to the field of environmental protection, in particular to a method for using a guanidyl-containing catalyst to conduct desulfurization on fuel oil. The method for using the guanidyl-containing catalyst to conduct desulfurization on the fuel oil utilizes ionic liquid, active carbon, the guanidyl-containing catalyst and hydrogen peroxide to desulfurize the fuel oil, the problem that hydrogen peroxide and the oil phase are immiscible can be solved by using the guanidyl-containing catalyst, and the reaction rate is improved; the method is high in reaction rate and high in sulphur removal rate, the catalyst has the good reproducibility, the method is simple and rapid, green and environmentally friendly, and can achieve desulfurization of the fuel oil efficiently.

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a method for desulfurizing fuel oil using a guanidine-based catalyst. Background technique [0002] Fuel contains organic sulfides such as mercaptans, sulfides, disulfides, thiophenes, benzothiophenes and dibenzothiophenes. The hazards of sulfides are many, and they will corrode equipment and poison catalysts in the process of petroleum refining. , in the process of burning oil, it will cause air pollution. How to remove sulfur from fuel safely and efficiently has always been concerned by people. [0003] CN104001470A discloses a Ti-Si-O bifunctional photocatalytic adsorbent and its preparation method and its application in fuel oil desulfurization. The preparation steps are as follows: TiO 2 Mix the precursor of SiO2 with the precursor of SiO2, add absolute ethanol and glacial acetic acid, stir to obtain titanium silicon precursor solution a; mix deionized water, absolut...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/34C10G27/04
CPCB01J31/34C10G27/04C10G2300/202
Inventor 王琪宇张媛媛
Owner 宁波高新区诠宝绶新材料科技有限公司
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