Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Removal Characteristics of Gaseous Contaminants by a Wet Scrubber with Different Packing Materials

충진제의 종류에 따른 습식 스크러버의 가스상 물질 제거특성

  • Han, Bang-Woo (Environmental System Research Center, Korea Institute of Machinery and Materials (KIMM)) ;
  • Kim, Hak-Joon (Environmental System Research Center, Korea Institute of Machinery and Materials (KIMM)) ;
  • Kim, Yong-Jin (Environmental System Research Center, Korea Institute of Machinery and Materials (KIMM)) ;
  • Han, Kyeong-Soo (Dongmyung Chem Plant Co., LTD)
  • 한방우 (한국기계연구원 청정환경기계연구센터) ;
  • 김학준 (한국기계연구원 청정환경기계연구센터) ;
  • 김용진 (한국기계연구원 청정환경기계연구센터) ;
  • 한경수 (동명캠프랜트)
  • Published : 2007.12.31
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Abstract

Wet scrubber is widely used to remove toxic gaseous contaminants in various industries such as semi-conductor industry, display manufacturing industry and so on. In this study, to optimize a packed bed scrubber as one of typical wet scrubber size while keeping its performance, four different packing materials were investigated at different air flow rates, liquid-gas ratios and pH values. Ammonia, hydrochloric acid and hydrofluoric acid were used as test gases to characterize the scrubber performance. Gas removal efficiency increased as the packing size decreased, which resulted in the increase of specific surface area. The increase of air flow rate led to the decrease of gas removal efficiency, while the increase of liquid-gas ratio led to the increase of gas removal efficiency. For the case of $NH_3$ gas, lower pH, and for the cases of HCl and HF, higher pH contributed to higher gas removal efficiency. Gas removal efficiency of a wet scrubber increased in the order of HCl < $NH_3$ < HF according to its water solubility.

Keywords

References

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