Propane dehydrogenation catalyst, preparation method thereof and method using propane dehydrogenation to prepare propylene

A propane dehydrogenation and catalyst technology, which is applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of poor catalytic activity and unfavorable Storage, transportation, subsequent processing and application, poor fluidity and other issues, to achieve good structural stability, good mechanical strength, and appropriate pore size
CN109745977AInactive Publication Date: 2019-05-14CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2019-05-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of catalysts and discloses a propane dehydrogenation catalyst, a preparation method thereof and a method using propane dehydrogenation to prepare propylene. The propane dehydrogenation catalyst comprises a carrier and a Pt component, a Sn component and a Na component which are loaded onto the carrier, wherein the carrier is spherical mesoporous silica, the spherical mesoporous silica has a cubic core structure, the compressive strength of the spherical mesoporous silica is 12-16MPa, the average particle size of the spherical mesoporous silica is 2-10 micrometers, the specific surface area of the spherical mesoporous silica is 700-900m<2> / g, the pore volume of the spherical mesoporous silica is 0.5-1mL / g, and the most probable pore diameter of the spherical mesoporous silica is 1-5 nanometers. When the propane dehydrogenation catalyst which is high in compressive strength is used in the reaction of propylene preparation using propane dehydrogenation, the propane dehydrogenation catalyst is good in catalytic performance, high in propane conversion rate, high in propylene selectivity and good in stability.
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Description

technical field

[0001] The invention relates to the field of catalysts, in particular to a propane dehydrogenation catalyst, a preparation method thereof and a method for preparing propylene from propane dehydrogenation. Background technique

[0002] Propylene is the basic raw material of petrochemical industry, mainly used in the production of polypropylene, acrylonitrile, acetone, propylene oxide, acrylic acid and butyl octanol. Half of the supply of propylene comes from refinery by-products, another about 45% comes from steam cracking, and a small amount of other alternative technologies. In recent years, the demand for propylene has been increasing year by year, and the traditional propylene production can no longer meet the demand for propylene in the chemical industry. Therefore, increasing the production of propylene has become a hot research topic. Among them, propane dehydrogenation to propylene is a major technology for increasing propylene production. For more t...

Claims

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