Removing carbon dioxide contained in combustion fume comprising acid compounds, comprises contacting gaseous effluent with an aqueous absorbent solution comprising e.g. water, and regenerating the absorbent solution

摘要

Removing carbon dioxide (CO 2) contained in a combustion fume comprising acid compounds, comprises (a) contacting, in an absorption zone (C1), a gaseous effluent (1) with an aqueous absorbent solution comprising 5-90 wt.% of water, 5-90 wt.% of at least one amine and 5-90 wt.% of at least one carbonyl compound, (b) regenerating the absorbent solution loaded with CO 2in a regeneration zone (C2) so as to release the CO 2in gaseous form and to obtain a regenerated absorbent solution, and (c) recycling the regenerated absorbent solution in step (a). Removing carbon dioxide (CO 2) contained in a combustion fume comprising acid compounds, comprises (a) contacting, in an absorption zone (C1), a gaseous effluent (1) with an aqueous absorbent solution comprising 5-90 wt.% of water, 5-90 wt.% of at least one amine and 5-90 wt.% of at least one carbonyl compound, so as to obtain an effluent depleted gas and a CO 2absorbent solution loaded with CO 2, (b) regenerating the absorbent solution loaded with CO 2in a regeneration zone (C2) so as to release the CO 2in gaseous form and to obtain a regenerated absorbent solution, and (c) recycling the regenerated absorbent solution in step (a).