CARBON DIOXIDE ABSORBENT WHOSE ENERGY REQUIREMENT FOR REGENERATION IS REDUCED AND METHOD FOR REMOVING CARBON DIOXIDE FROM GASEOUS FLOW

摘要

PROBLEM TO BE SOLVED: To provide a method by which carbon dioxide can be sufficiently removed from a fluid flow and regeneration of an absorbent can be performed with relatively small energy cost at that time.

SOLUTION: The absorbent for removing carbon dioxide from a gaseous flow includes at least one amine and at least one aqueous solution of aminocarboxylic acid and/or aminosulfonic acid. Energy necessary for regeneration of the absorbent can be reduced by using amino carboxylic acid or aminosulfonic acid together with amine.

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