Carbon dioxide absorption characteristics according to amine mixtures with different order

급수가 다른 아민 혼합에 따른 이산화탄소 흡수 특성

  • Choi, Soo-Hyun (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • You, Jong-Kyun (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Park, Ki-Tae (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Baek, Il-Hyun (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Park, So-Jin (Department of Chemical Engineering, Chungnam National University)
  • 최수현 (한국에너지기술연구원 온실가스연구단) ;
  • 유정균 (한국에너지기술연구원 온실가스연구단) ;
  • 박기태 (한국에너지기술연구원 온실가스연구단) ;
  • 백일현 (한국에너지기술연구원 온실가스연구단) ;
  • 박소진 (충남대학교 화학공학과)
  • Received : 2013.08.10
  • Accepted : 2013.09.06
  • Published : 2013.09.30


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.


Absorbent;Amine;Carbon dioxide;Separation


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