Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Absorption and Regeneration of Carbon Dioxide in Aqueous AMP + AEPD and AMP + TIPA Solutions

AMP + AEPD와 AMP + TIPA 수용액을 이용한 이산화탄소의 흡수 및 재생

  • Kim, Mi-Sook (Department of Environmental Engineering, Pusan National University) ;
  • Choi, Won-Joon (Department of Environmental Engineering, Pusan National University) ;
  • Seo, Jong-Beom (Department of Environmental Engineering, Pusan National University) ;
  • Cho, Ki-Chul (Department of Environmental Engineering, Pusan National University) ;
  • Kim, Soo-Gon (Division of Remediation Technology, QEN Solution) ;
  • Oh, Kwang-Joong (Department of Environmental Engineering, Pusan National University)
  • Published : 2007.10.31
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Abstract

Increasing emission of $CO_2$ significantly effects the global warming. Chemical absorption is one of separation methods of $CO_2$ from the industrial flue gases. In this study, the $CO_2$ removal efficiency as well as the $CO_2$ absorption amount of aqueous AMP (2-amino-2-methyl-1-propanol) solutions were measured using the continuous absorption and regeneration apparatus. We investigated the effect of aqueous AMP+AEPD(2-amino-2-ethyl-1, 3-propanediol) and AMP+TIPA (triisopropanolamine) solutions to enhance absorption characteristics of AMP. As a result of this study, the absorption amount and $CO_2$ removal efficiency were increased with adding TIPA into 30 wt.% AMP. The absorption amount and $CO_2$ removal efficiency of aqueous 30 wt.% AMP+5 wt.% TIPA solution were $1.70\;kg-CO_2/kg-absorbent$ and 91.1%, while those of aqueous 30 wt.% AMP solution were $1.58\;kg-CO_2/kg-absorbent$ and 89.3%. In addition, aqueous 30 wt.% AMP+5 wt.% TIPA solution used in the study revealed the high stripping efficiency, which was almost 98%, at the temperature of $110^{\circ}C$. Thus, the temperature of regenerator should be operated at $110^{\circ}C$.

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References

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