Carbon dioxide absorption characteristics according to amine mixtures with different order

The advanced absorbent that used amine mixture with different order were developed to separate carbon dioxide emitted from fossil fuel power plant. The carbon dioxide absorption capacity for mixtures with different amine(primary, secondary and tertiary) were investigated according to CO 2 partial pressure. The carbon dioxide absorption capacity at the same pressure is ordered as 3DMA1P 30wt%>3DMA1P 27wt%+MEA 3wt%>3DMA1P 27wt%+DEA 3wt%. The result indicates that mixing tertiary amine with primary amine yields more efficient carbon dioxide absorbent than mixing tertiary with secondary amine does. Finally, the predicted semi-empirical gas-liquid equilibrium model fitted with experimental results. Key Words : Absorbent, Amine, Carbon dioxide, Separation 2013 () () (:2011-0031969) * Corresponding Author : So-Jin Park(Chungnam Univ.)Tel: +82-42-821-5684 email: sjpark@cnu.ac.kr Received August 10, 2013 Revised September 4, 2013 Accepted September 6, 2013