KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
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Substituent Effect in the Reaction of Carbon Dioxide with Amine-Based Absorbent

치환기 특성에 따른 아민흡수제와 CO2의 반응특성 평가

  • Shim, Jae-Goo (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Lee, Junghyun (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Jung, Jin-Kyu (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Kwak, No-Sang (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2020.04.24
  • Accepted : 2020.07.14
  • Published : 2020.09.30
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Abstract

The reaction of carbon dioxide with the amine-based absorbents which have various substituents in the molecule was described. In the case of MEA which is a representative primary amine, the absorption reaction was proceeded very fast while the regeneration reaction was took place slowly due to the strong bond strength between the absorbent and carbon dioxide. The more substituents on N atom of the absorbent, the slower the absorption reaction between carbon dioxide and the absorbent, which in turn causes faster the regeneration rate from the reaction intermediate, carbamate.

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