METHOD FOR REMOVING CARBON DIOXIDE IN COMBUSTION EXHAUST GAS

摘要

PURPOSE: To provide a method for removing CO2 contained in combustion exhaust gas. CONSTITUTION: The method for removing CO2 in combustion exhaust gas is constituted so that the combustion gas under the atmospheric pressure is brought into contact with a mixed aq. solution containing 100 pts.wt. amino acid metallic salt (X) expressed by general formula, CH3 NR<1> CHR<2> COOM (Each of R<1> and R<2> represents hydrogen or a lower alkyl group and when R<1> is hydrogen, R<2> is the lower alkyl group, when R<1> is the lower alkyl group, R<2> is hydrogen and M represents an alkali metal), 1-25 pts.wt. pyperazine (Y) and 10-10000ppm copper compound (the content per the mixed aq. solution) expressed in terms of bivalent Copper ion.