Journal of Korean Society for Atmospheric Environment (한국대기환경학회지)

Korean Society for Atmospheric Environment (한국대기환경학회)
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Performance of Removal Efficiency for Mercury Compounds using Hybrid Filter System in a Coal-fired Power Plant

석탄화력발전시설에서의 하이브리드 집진기 적용 시 수은화합물 제어성능 평가

  • Sung, Jin-Ho (Department of Environmental Engineering, WtERT Center, Yonsei University) ;
  • Jang, Ha-Na (Department of Environmental Engineering, WtERT Center, Yonsei University) ;
  • Back, Seung-Ki (Department of Environmental Engineering, WtERT Center, Yonsei University) ;
  • Jung, Bup-Muk (Department of Environmental Engineering, WtERT Center, Yonsei University) ;
  • Seo, Yong-Chil (Department of Environmental Engineering, WtERT Center, Yonsei University) ;
  • Kang, Yeon-Suk (J-E Tech Co., Ltd.) ;
  • Lee, Chul-Kyu (J-E Tech Co., Ltd.)
  • Received : 2014.03.26
  • Accepted : 2014.05.21
  • Published : 2014.06.30
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Abstract

This study focused on the performance of the newly developed hybrid filter system to capture fine particulate matter and mercury compounds in a coal-fired power plant. The hybrid filter system combining bag-filter and electrostatic precipitator had been developed to remove fine particulate matter. However, it would have a good performance to control mercury compounds as well. In Hybrid filter capture system, the total removal efficiency of total mercury compounds consisting of particulate mercury ($Hg_p$), oxidized mercury ($Hg^{2+}$), and elemental mercury ($Hg^0$) was 66.2%. The speciation of mercury compounds at inlet and outlet of Hybrid filter capture system were 1.3% and 0% of $Hg_p$, 85.2% and 68.1% of $Hg^0$, and 13.5% and 31.9% of $Hg^{2+}$, respectively. In hybrid filter capture system injected with 100% of flue-gas, the removal efficiency of total mercury was calculated to increase to 93.5%.

Keywords

References

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