Study on CO2 Absorption Enhancement by Adding Active Carbon Particles into MEA Solution

The chemical absorption of CO2 is generally recognized as the most efficient post-combustion technology of CO2 separation at present. A study on CO2 absorption enhancement by adding small particles of active carbon into MEA solution is investigated within a self-designed glass stirring tank. Experiments of different particle loadings and different particle sizes have been conducted. When active carbon particle concentration is fewer, compared to the absorption rate of CO2 gas absorbed by MEA aqueous solution, the role of active carbon adsorption CO2 gas is negligible. The enhancement efficiency of CO2 absorption could be improved by 10% to the upmost in this liquid-particle system.