CO2 separation and recovery method and CO2 separation and recovery device in cement manufacturing exhaust gas

摘要

PROBLEM TO BE SOLVED: To provide a CO 2 separation / recovery method and a CO 2 separation / recovery device in cement manufacturing exhaust gas capable of appropriately treating cement manufacturing exhaust gas. SOLUTION: In the CO 2 separation and recovery method in cement manufacturing exhaust gas of the present invention, SOx, NOx, halogen and the like are used before the exhaust gas from a cement manufacturing facility is brought into contact with a CO 2absorber to separate and recover CO 2. acidic component and H 2 O, by removing harmful components such as dust, can suppress the deterioration of the absorption capacity of the CO 2 absorbent material, can properly handle cement production exhaust gas. By suppressing the deterioration of the absorption capacity of the CO 2 absorbent material in this way, the cement manufacturing exhaust gas can be appropriately treated. [Selection diagram] Fig. 1