Fluidized bed reactor and applications and process for preparing trichlorosilane by cold hydrogenation reaction

By using a ring plate for zoned gas supply and monitoring the differential pressure to adjust the gas intake in the fluidized bed reactor, the problem of uneven gas-solid distribution in the fluidized bed reactor was solved, which improved reaction efficiency and raw material utilization, extended equipment operating time, and reduced production costs.

CN122098408APending Publication Date: 2026-05-29CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEMICAL CORP
Filing Date
2024-11-28
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing cold hydrogenation fluidized bed reactors suffer from problems such as flow deviation and uneven gas-solid distribution in the bed, resulting in insufficient contact of reactants, limiting reaction efficiency, and easily leading to abnormal shutdowns, thus increasing production costs.

Method used

The gas feed section is divided into a central chamber and an annular chamber by an annular plate. The gas is introduced into the central chamber and the annular chamber separately to enhance the uniform distribution of gas in the radial direction. Combined with the gas distributor and flow guide components, the pressure difference between the inlet and outlet ends of the gas distributor is monitored to adjust the gas intake, avoid nozzle clogging, and improve the fluidization quality of the bed.

Benefits of technology

It improved reaction efficiency, increased raw material utilization, reduced material accumulation dead zones around the fluidized bed, extended the long-cycle operation time of the fluidized bed, and reduced production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of fluidized reaction, and discloses a fluidized bed reactor, application and a method for preparing trichlorosilane through cold hydrogenation reaction, wherein a first gas distributor is arranged in the reaction cavity of the fluidized bed reactor, a gas feeding section is formed between the first gas distributor and the bottom of the reaction cavity, an annular plate is arranged at the bottom of the reaction cavity and extends to the first gas distributor so as to separate the gas feeding section into a central chamber formed around the annular plate and an annular chamber located between the annular plate and the cavity wall of the reaction cavity, a second gas distributor is arranged in the central chamber, and a third gas distributor is arranged in the annular chamber. The present application has the advantages of improving the overall fluidization quality of the bed layer and the utilization rate of raw materials.
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