A system and method for purging a series flow bed reactor

By centralizing the purge gas to the outlet of the final reactor and separating and reusing it, the problem of purge gas tail gas mixing into the reaction system was solved, which improved the reaction yield and catalyst utilization efficiency, and reduced energy consumption and equipment complexity.

CN120939857BActive Publication Date: 2026-07-21ZHEJIANG SATELLITE ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ZHEJIANG SATELLITE ENERGY CO LTD
Filing Date
2025-09-24
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing series fluidized bed reactors, the purge gas tail gas mixes into the reaction system, resulting in reduced reaction yield, decreased catalyst utilization efficiency, and increased equipment energy consumption.

Method used

The purge gas tail gas from the top buffer section and the bottom collector of the reactor is concentrated at the outlet of the final reactor and separated into hydrogen and dry gas by the separation and reuse component. The hydrogen and dry gas are then used as purge gas and enter the reactor buffer section and catalyst collector respectively. The subsequent compression and separation section reduces the number of pipelines and energy consumption.

Benefits of technology

It improves reaction yield, reduces equipment complexity and energy consumption, enhances catalyst utilization efficiency, and reduces catalyst wear and reaction depth control.

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Abstract

The application discloses a kind of series flow bed reactor purging gas optimization system and method, it is related to chemical reactor technical field, including: multiple series connection flow reactor, purging gas central pipeline, separation and reuse component;Through the cooperation of multiple flow reactors, purging purging gas central pipeline and separation and reuse component, the top of each flow reactor is equipped with buffer section, and catalyst collector is connected below flow reactor, to ensure the circulation rate of catalyst in flow reactor, buffer section and catalyst collector are equipped with purging gas pipeline, to ensure that the circulation rate of catalyst is within controllable range by controlling pressure difference, reduce the wear of catalyst, while being able to ensure the contact time of catalyst and reactant material;By central purging gas to last reactor outlet, and using back compression and separation section, reduce the number of pipeline, purging gas tail gas directly enters the end, reduce intermediate heating furnace load, reduce energy consumption.
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