| abstract |
An acid gas absorbent according to an embodiment includes at least one kind of secondary amine compound represented by the following general formula (1). n n n n n n n n n n In the above-described formula (1), R 1 indicates a cyclopenthyl group or a cyclohexyl group in which a part of a hydrogen atom may be substituted by a substituted or non-substituted alkyl group having 1 to 3 carbon atoms, R 2 and R 3 each indicate an alkylene group having 2 to 4 carbon atoms, and, R 2 and R 3 may each be the same or different, and be a straight chain or have a side chain. |