Propane dehydrogenation catalyst and preparation method thereof and method for preparing propylene by propane dehydrogenation

A propane dehydrogenation and catalyst technology, which is applied in catalyst activation/preparation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of easy deactivation, low propane conversion rate and low propylene selectivity , unstable mesoporous structure, etc., to achieve the effect of strong hydrophobicity, excellent hydrothermal stability, and simple post-treatment
CN109745978AActive 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

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Abstract

The invention relates to the field of catalysts and discloses a propane dehydrogenation catalyst and a preparation method thereof and a method for preparing propylene by propane dehydrogenation. The propane dehydrogenation catalyst comprises a supporter, a Pt component, a Sn component and a Na component, and the Pt component, a Sn component and a Na component are supported on the supporter. The supporter is made of a mesoporous carbon material is in a cube-core-structure cubic and hexagonal intergrowth pore passage structure. The mesoporous carbon material is characterized in that the specificsurface area is 300-450m<2> / g, the pore volume is 0.1-0.5mL / g, and most probable pore diameter is 2-5nm. The propane dehydrogenation catalyst applied to reaction of propane dehydrogenation for preparing propylene shows excellent catalytic performance, and high propane conversion rate, high propylene selectivity and high catalyst stability are realized.
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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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