Carbon dioxide absorbent for use under high pressure, and method for absorption and collection of carbon dioxide under high pressure

摘要

A water-containing liquid absorbent for absorbing and collecting carbon dioxide from a gas flow having a carbon dioxide partial pressure of 2 bar or more, the absorbent being characterized by containing 60 to 90 wt% of a tertiary aliphatic amine represented by general formula [1]; and a method for absorbing and collecting carbon dioxide using the water-containing liquid absorbent.