Korean Chemical Engineering Research

  • 제47권6호
  • /
  • Pages.710-714
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  • 2009
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  • 0304-128X(pISSN)
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  • 2233-9558(eISSN)
한국화학공학회 (The Korean Institute of Chemical Engineers)
권호 표지

회분식 유동층반응기에서 세 종류 아연계 탈황제의 석탄가스 환원도, 수분함량, 황화수소함량에 따른 반응성 평가

Analysis of Reactivity of Zn-Based Desulfurization Sorbents for Reducing Power, Water Vapor Content and H2S Content of the Coal Gas in a Batch-Type Fluidized-Bed Reactor

  • 박영철 (한국에너지기술연구원 온실가스연구단) ;
  • 조성호 (한국에너지기술연구원 온실가스연구단) ;
  • 손재익 (서울산업대학교 신에너지공학과) ;
  • 이창근 (한국에너지기술연구원 온실가스연구단)
  • Park, Young Cheol (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Jo, Sung-Ho (Greenhouse Gas Research Center, Korea Institute of Energy Research) ;
  • Son, Jae-Ek (The Graduate School of Energy & Environment, Seoul National University of Technology) ;
  • Yi, Chang-Keun (Greenhouse Gas Research Center, Korea Institute of Energy Research)
  • 투고 : 2009.07.17
  • 심사 : 2009.09.03
  • 발행 : 2009.12.31
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초록

본 연구에서는 석탄가스의 환원도와 석탄가스에 함유된 $H_2O/H_2S$ 농도변화에 따른 세 가지 종류의 아연계 탈황제의 반응성능을 회분식 유동층반응기에서 분석하였다. 가스화에서 생성되는 가스의 조성은 환원도가 각각 다른 KRW(Kellogg-Rust-Westinghouse) 공기이용 가스 조성, Shell 산소이용 가스 조성, 고등기술연구원의 가스 조성을 기준으로 모사가스를 이용하여 입구의 $H_2O$와 $H_2S$ 농도를 변화시켜 실험을 수행하였다. $H_2O$의 농도는 5부터 30%까지 $H_2S$의 농도는 0.5에서 2%로 변화시켜 탈황성능을 분석하였다. 실험 결과 $H_2O$의 농도가 증가할수록 탈황성능이 감소하고 입구의 $H_2S$ 농도가 증가할수록 탈황반응기 후단의 $H_2S$ 농도 역시 증가하였다. 모든 조건에서 환원도에 따른 탈황성능 변화는 없었으며 탈황성능은 최저 99.5%로 건식탈황제를 이용하여 99% 이상의 $H_2S$ 제거 성능을 보이는 것을 확인하였다.

In this study, we analyzed the desulfurization performance of Zn-based dry sorbents according to the reducing power, water vapor content and $H_2S$ inlet concentration of coal gas in a batch-type fluidized-bed reactor. We used three different coal gas composition with different reducing power such as KRW air-blown coal gas, Shell oxygenblown coal gas and IAE coal gas. The experiments were performed by changing the inlet concentration of water vapor and $H_2S$ in a coal gas. Water vapor content was varied from 5% to 30% and $H_2S$ inlet concentration from 0.5% to 2.0%. As both the water vapor content and $H_2S$ inlet concentration increased, desulfurization performance of Zn-based sorbents decreased regardless of the reducing power of the coal gas. The minimum desuflurization performance was, however, above 99.5% for all experimental conditions, which implied that Zn-based dry sorbents could be used to remove $H_2S$ up to 99%.

키워드

과제정보

연구 과제 주관 기관 : 산업기술연구회

참고문헌

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