ABSORBENT FOR SEPARATION OF ACID GAS FROM MIXED GAS AND PROCESS FOR SEPARATING ACID GAS FROM MIXED GAS

摘要

A noble absorbent for separation of acid gases from mixed gas which has superior reproducibility and a larger absorption amount than an existing absorbent so that the noble absorbent can separate a larger amount of carbon dioxide, and which is less corrosive and has excellent economic efficiency, and a process for separating acid gases from the mixed gas using the same are provided. An absorbent for separation of acid gases from mixed gas is formed of 10 to 60 wt.% of an aqueous sodium glycinate solution and maintains a liquid phase condition even after absorbing the acid gases from the mixed gas. A process for separating acid gases from mixed gas comprises the step of contacting an absorbent comprising 10 to 60 wt.% of an aqueous sodium glycinate solution with the mixed gas, thereby allowing the absorbent to absorb the acid gases contained in the mixed gas to form a liquid phase absorbent mixed solution.