Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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SO2 Removal by Internal Circulation of de-SOx Absorbents

흡수제 내부순환형 탈황장치의 SO2 제거성능 특성

  • Park, Young-Ok (Clean Coal Research Center, Korea Institute of Energy Research) ;
  • Park, Hyun-Jin (Clean Coal Research Center, Korea Institute of Energy Research) ;
  • Kim, Yong-Ha (Department of Chemical Engineering, Pukyong National University)
  • 박영옥 (한국에너지기술연구원 청정석탄연구센터) ;
  • 박현진 (한국에너지기술연구원 청정석탄연구센터) ;
  • 김용하 (부경대학교 화학공학과)
  • Received : 2011.08.02
  • Accepted : 2011.10.26
  • Published : 2011.12.31
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Abstract

Three new granular absorbents were prepared from calcium hydroxide, and applied to an FGD process with internal circulation. The aim of the study was finding the most efficient of the these three applied absorbents for the $SO_2$ removal at high flue gas temperatures. The absorbent is fed to the testing unit at high operation temperature and fluidized inside the FGD system where the sorbent particles react with the $SO_2$ gas. The rate of $SO_2$ decomposition was high in C-type absorbent which had the large surface area. De-SOx characteristics of the current absorbents appeared to be similar to the other conventional agents in this fluidized bed combustor. In particular, the optimum de-SOx condition could be achieved at high mole ratios of Ca to S which can reduce the residual $SO_2$.

Keywords

References

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