| abstract |
An acidic gas absorbent having a high recovery amount of acidic gas such as carbon dioxide, an acidic gas removing device and an acidic gas removing method using the same are provided. An acidic gas absorbent comprising at least one diamine compound represented by the following general formula (1), an acidic gas removing apparatus and an acidic gas removing method using the same. R 1 R 2 N-CH 2 -CH (OH) -CH 2 -NR 3 R 4 ยทยทยท Equation (1) (In the above formula (1), R 1 represents a substituted or unsubstituted cyclic alkyl group having 3 to 8 carbon atoms, R 2 and R 3 each independently represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. And R 4 represents a hydroxyalkyl group having 2 to 4 carbon atoms) [Selection figure] None |