Exhaust gas pretreatment device, exhaust gas treatment device, and co2 separation and recovery method for exhaust gas pretreatment device
By using a combination of an LDH reaction tower and a gas cooling tower, the impact of acidic gases in the exhaust gas on CO2 separation and recovery was resolved, achieving efficient and low-cost removal of acidic gases and CO2 separation and recovery.
CN122161658APending Publication Date: 2026-06-05JFE ENGINEERING CORP +2
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- JFE ENGINEERING CORP
- Filing Date
- 2024-09-20
- Publication Date
- 2026-06-05
Smart Images
Figure CN122161658A_ABST
Abstract
An exhaust gas pretreatment device configured on an inlet side of a CO2 separation and recovery apparatus that separates and recovers CO2 from combustion exhaust gas, the exhaust gas pretreatment device having: an LDH reaction tower filled with a layered double hydroxide (LDH); and a gas cooling tower that cools the combustion exhaust gas discharged from the LDH reaction tower with cooling water, whereby when CO2 is separated and recovered from the exhaust gas discharged from a waste incinerator or a coal thermal power generation facility, acidic gas components contained in the exhaust gas can be efficiently removed, and this can be implemented at low equipment and operating costs.
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