Method for preparing supported molybdenum-oxide-based and tungsten-oxide-based oxidation desulfurization catalysts

A tungsten oxide-based, oxidative desulfurization technology, used in coal processing, petroleum processing and petrochemical fields, can solve the problems of loss of oil, difficult to completely separate oil and water, and immiscibility of oil and water, and achieve the effect of improving activity.
CN103240076AInactive Publication Date: 2013-08-14DALIAN UNIV OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
DALIAN UNIV OF TECH
Publication Date
2013-08-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing supported molybdenum-oxide-based and tungsten-oxide-based oxidation desulfurization catalysts, belonging to the technical fields of coal processing, petroleum processing and petrochemical industry and relating to a method for preparing catalysts for removing thiophene-type heteroaromatic sulfide-containing solids from distillate oil and chemical materials by oxidation. The method is characterized by preparing the catalysts in a way of implementing plasma treatment on the molybdenum-oxide-based or the tungsten-oxide-based catalyst supported by a porous supporter under a hydrogen or inert gas atmosphere. The method has the effect and the benefit of remarkably enhancing the oxidation desulfurization activity of the supported molybdenum-oxide-based and tungsten-oxide-based catalysts, and has wide application prospect in the field of deep desulfurization.
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Description

technical field

[0001] The invention belongs to the technical fields of coal processing, petroleum processing and petrochemical industry, and relates to a supported molybdenum-based and tungsten-based molybdenum-based and tungsten-based materials mainly used for oxidative removal of thiophene aromatic heterocyclic sulfides in gasoline, kerosene and diesel fraction oil and chemical raw materials Preparation method of solid catalyst. Background technique

[0002] Organic sulfur compounds in fuel burn to form SO x , is one of the main sources of air pollution. In recent years, with the intensification of the trend of crude oil becoming heavier and inferior, the content of organic sulfur compounds in fuel oil has gradually increased, but environmental protection requirements have become increasingly stringent. A common problem with sulfur content.

[0003] In refineries, the removal of organic sulfur compounds in oil is mainly achieved through hydrodesulfurization (HDS) proce...

Claims

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