화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.47, No.4, 512-517, August, 2009
Export Citation
Drop Tube Furnace를 이용한 순산소연소 배가스 로내탈황에 관한 연구
Study on the In-Furnace Desulfurization for Oxy-Fuel Combustion Flue Gases Using Drop Tube Furnace
안영모, 조항대, 최원길, 박영성1, 길상인2, 이형근†
  • 한국에너지기술연구원, 303-343 대전시 유성구 장동 71-2
  • 1대전대학교 환경공학과, 300-716 대전시 동구 용운동 96-3
  • 2한국기계연구원, 303-343 대전시 유성구 장동 171
Young-Mo An, Hang-Dae Jo, Won-kil Choi, Yeong-Sung Park1, Sang-In Keel2, and Hyung-Keun Lee†
  • Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
  • 1Department of Environmental Engineering, Daejeon University, 96-3 Yongun-dong, Dong-gu, Daejeon 300-716, Korea
  • 2Korea Institute of Machinery & Materials, 171 Jang-dong, Yuseong-gu, Daejeon 303-343, Korea
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초록
순산소 연소에서 SO2 농도는 배가스의 재순환으로 인해 기존의 공기연소에 비해 3배 이상 높게 나타나고, CO2 농도와 SO2 농도가 높기 때문에 탈황현상이 기존의 공기 연소와는 다르게 나타난다. 본 연구에서는 순산소 연소조건에서 로내탈황 특성을 알아보기 위해 Drop Tube Furnace(DTF)를 이용하여, 반응온도, 유입 SO2 농도 그리고 Ca/S 비 등 의 운전변수에 따른 SO2 제거효율을 측정하였으며 수분의 영향에 대해서도 알아보았다. 반응온도, 유입 SO2 농도 그리고 Ca/S 비가 증가함에 따라 SO2 제거효율은 증가하였고 유입가스 내 수분이 존재할 경우 SO2 제거효율은 약 4~6% 증가하는 것으로 나타났다.
SO2 concentrations in oxy-fuel combustion flue gases increases about three times as high as that of conventional air combustion system owing to the flue gas recirculation for the control of combustion temperature. So the desulfurization reaction is different from that of the conventional air combustion system due to exceptionally high CO2 and SO2 concentration. In this study, drop tube furnace(DTF) system was used to investigate the desulfurization characteristics of limestone in oxy-fuel combustion furnace. The experiments were performed under O2/CO2 atmosphere to examine the effect of operating variables such as reaction temperatures, Ca/S ratios and inlet SO2 concentrations on the SO2 removal efficiencies. SO2 removal efficiency increased with reaction temperature, Ca/S ratio and inlet SO2 concentration. And the addition of water vapor resulted in about 4~6% of increase in SO2 removal efficiency.
Keywords:Oxy Fuel Combustion;In-Furnace Desulfurization;Drop Tube Furnace
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