Dissolved Carbonic Anhydrase for Enhancing Carbon Dioxide Absorption into High CO2-loaded, Aqueous Monoethanolamine Solutions

Abstract

The possible benefit of the addition of carbonic anhydrase (CA) to the solutions of aqueous CO2-loaded monoethanolamine (MEA) to enhance the kinetics of the reaction between carbon dioxide and high CO2-loaded MEA solutions was investigated in a stirred cell apparatus. The results show that the absorption rate of CO2 in a high CO2-loaded MEA solution can be significantly enhanced after the dissolution of enzyme (CA) in the solution. It's also the first time to monitor the performance of enzyme in CO2-loaded amine solutions.