Preparation of hydrogenation catalyst

A hydrogenation catalyst and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. Problems such as the accumulation degree of active components and the difficulty of vulcanization of active components can achieve the effects of reducing the amount of metal active components, avoiding agglomeration, and reducing the size
CN101298047AInactive Publication Date: 2008-11-05BC P INC CHINA NAT PETROLEUM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BC P INC CHINA NAT PETROLEUM CORP
Publication Date
2008-11-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a method for preparing a hydrogenation catalyst with high activation. A disposition method is adopted to carry out step-by-step loading to the active components of the metals of VIB and VIII families; the VIB metal comprises tungsten or molybdenum, while the VIII metal comprises nickel or cobalt; a carrier is alumina. The loading of VIB metal takes a corresponding soluble salt as raw material, an acid solution as a precipitator and a cationic surface active agent as a dispersant. In a hydrothermal condition, the corresponding soluble salt, the acid solution and the cationic surface active agent produce metallic oxide particles by a liquid deposition reaction; the loading of VIII metal also takes a corresponding soluble salt as raw material and carbamide as a precipitator; the adding of the precipitator and the generation of precipitation are separated by controlling reaction temperature in sections and even precipitation is realized to disperse the particles of the active components on the carrier evenly. The hydrogenation catalyst prepared shows good effects in the respects of desulfurization and denitrification activation and can greatly reduce the usage of the active components.
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Description

technical field

[0001] The invention belongs to the technical field of preparation of hydrorefining catalysts, and in particular relates to a method for preparing a hydrogenation catalyst capable of realizing higher desulfurization and denitrogenation activities. Background technique

[0002] The increasingly stringent quality standards for oil products place higher demands on the desulfurization activity of the hydrofining catalysts used. The supported catalyst with Group VIB metal W or Mo as the main agent, Group VIII metal Ni or Co as the auxiliary agent, and alumina as the carrier is currently the most widely used hydrofining catalyst. In addition to continuous research and exploration on the selection of active components and supports, trying to improve the dispersion of active components in the catalyst is also one of the effective ways to improve the activity of the catalyst, because the preparation method and preparation conditions have great influence on the dispers...

Claims

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