Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
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Absorption and Regeneration Characteristics of a Sorbent for Fluidized-Bed CO2 Removal Process

유동층 CO2 회수공정을 위한 흡수제의 흡수 및 재생특성

  • 이창근 (한국에너지기술연구원) ;
  • 홍선욱 (한국에너지기술연구원) ;
  • 조성호 (한국에너지기술연구원) ;
  • 손재익 (한국에너지기술연구원) ;
  • 최정후 (건국대학교 화학공학과, 차세대환경기술센타)
  • Received : 2004.10.18
  • Accepted : 2005.01.07
  • Published : 2005.04.30
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Abstract

Absorption and regeneration characteristics of sorbent used in a fluidized-bed process to capture $CO_2$ from flue gas have been measured in a thermo gravimetric analyzer. A sorbent Sorb NH prepared for fluidized-bed process was faster than pure $Na_2CO_3$ in absorption and regeneration reaction rate. Activation energy of apparent absorption reaction of sorbent Sorb NH was estimated as -10,100 cal/g mol and that of pure $Na_2CO_3$ as -12,200 cal/g mol. Activation energy of apparent regeneration reaction of sorbent Sorb NH was estimated as about 12,050 cal/g mol and that of pure $Na_2CO_3$ as about 11,320 cal/g mol.

연소기체로부터 이산화탄소를 흡수하는 유동층 공정에 사용되는 흡수제의 흡수 및 재생 반응특성을 측정 및 고찰하였다. 유동층 공정을 위해서 제조된 흡수제 Sorb NH의 흡수 및 재생 반응속도는 순수한 $Na_2CO_3$보다 더 빨랐다. 흡수 반응에서 Sorb NH의 겉보기 활성화에너지는 -10,100 cal/g mol, 순수한 $Na_2CO_3$의 겉보기 활성화에너지는 -12,200cal/g mol이었다. 재생반응에서 Sorb NH의 겉보기 활성화에너지는 약 12,050 cal/g mol, 순수한 $Na_2CO_3$의 활성화에너지는 약 11,320 cal/g mol이었다.

Keywords

Acknowledgement

Supported by : 과학기술부

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