ACIDIC GAS ABSORBENT, ACIDIC GAS REMOVING METHOD AND ACIDIC GAS REMOVING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an acidic gas absorbent that can collect a large amount of acidic gas such as carbon dioxide and inhibits the dissipation of amine compounds, and an acidic gas removing method and an acidic gas removing device employing the same.SOLUTION: The present invention provides an acidic gas absorbent comprising at least one amine compound represented by the formula (1), and an acidic gas removing method and an acidic gas removing device employing the same. In the formula (1): RRNCHR, Ris a substituted or unsubstituted C3-C8 cyclic alkyl group, Ris a hydrogen atom or a C1-C4 alkyl group, and Ris a C2-C4 alkyl group having at least two hydroxy groups (excluding the case where two of the hydroxy groups bind to the same carbon atom forming the alkyl group).SELECTED DRAWING: Figure 1