Ultra-clean gas pretreatment method and system for carbon capture after fossil energy combustion

By employing an ultra-clean gas pretreatment method that combines swirl rectification, multi-stage cooling, integrated reaction bed, and ceramic membrane filtration with a central control system, the problems of redundant equipment, high energy consumption, and easy material deactivation in existing systems have been solved. This method achieves efficient and stable gas pretreatment that meets the requirements for carbon capture inlet.

CN122076142APending Publication Date: 2026-05-26ZHEJIANG SAIPU SEPARATION EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
ZHEJIANG SAIPU SEPARATION EQUIPMENT CO LTD
Filing Date
2026-03-03
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing gas pretreatment systems for carbon capture after fossil fuel combustion suffer from problems such as lengthy equipment, high energy consumption, large footprint, lack of collaborative optimization, easy material deactivation, short lifespan, and lack of real-time monitoring and feedback control, making it difficult to meet the inlet requirements of carbon capture units.

Method used

An ultra-clean gas pretreatment method is adopted, which includes swirl rectification, multi-stage cooling and condensation dehumidification, integrated reaction bed and ceramic membrane filtration. Combined with a central control system for dynamic adjustment, it can achieve synergistic removal of multiple pollutants and real-time monitoring.

Benefits of technology

It achieves highly integrated, low-energy-consumption synergistic removal of multiple pollutants, extends system stability and lifespan, reduces operation and maintenance costs, and ensures that the quality of the outlet gas meets carbon capture requirements.

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Abstract

The invention relates to the technical field of carbon capture and storage, discloses an ultra-clean gas pretreatment method and system for carbon capture after fossil energy combustion, and aims at solving the problems that a traditional pretreatment process is long in structure, high in energy consumption, weak in multi-pollutant synergistic removal capacity, lack of self-adaptive regulation and short in material service life. The method comprises the following steps: flue gas primary rectification and coarse dust removal; performing multi-stage gradient cooling and condensation dehumidification; integrated purification is realized; performing fine filtration and online monitoring; and performing self-adaptive operation regulation and control. The system comprises a rotational flow rectifying device, a gradient cooling unit, an integrated reaction bed layer, a ceramic membrane filtering unit and a central control system. By adopting the technical scheme, the ultra-clean gas pretreatment with high integration, low energy consumption, multi-pollutant efficient synergistic removal, intelligent self-adaptive regulation and control, long service life and low operation and maintenance cost can be realized.
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