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성형화된 CaO 상에서 이산화탄소의 탄산화·탈 탄산화 반응 특성 연구
Characteristics of Carbonation and Decarbonation of Carbon Dioxide over Calcium Oxide
한밭대학교 화학공학과, 에너지청정기술연구소, 305-719 대전시 유성구 덕명동 산 16-1 1공주대학교 화학공학과, 314-701 충남 공주시 신관동 182 2한국에너지기술연구원 에너지환경연구부, 305-343 대전시 유성구 장동 71-2
Department of Chemical Engineering, Hanbat National University, RCECT, San 16-1 Duckmyoung-dong, Yuseong-gu, Daejeon 305-719, Korea 1Department of Chemical Engineering, Kongju National University, 182 Shinkwan-dong, Kongju, Chungnam 314-701, Korea 2Energy & Environ., Research Department, Korea Institute of Energy Research, 71-2 Jang-dong, Yuseoung-gu, Daejeon 305-343, Korea
whroo@hanbat.ac.kr
HWAHAK KONGHAK, October 2003, 41(5), 661-666(6), NONE
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Abstract
MSR(methane steam reforming)공정 중 발생되는 CO2를 제거하기 위하여 CaCO3에 무기바인더를 이용하여 구형의 CaO반응물질을 제조하였다. 반응물질의 특성을 알아보기 위하여 반응온도, 농도, 접촉시간 등의 운전조건에 대한 변화와 CO2와의 반응성에 대하여 연속 흐름식 반응장치를 이용하여 실험하였다. 반응물질의 소성온도는 850 ℃에서 반응성이 가장 좋았지만 탈 탄산화 공정을 고려하여 950 ℃로 결정하였다. GHSV를 3,000 hr-1으로 고정시켜 놓고 실험한 결과, 반응기의 온도는 800 ℃, 유입되는 CO2의 농도는 10%에서 반응성이 가장 좋았다.
The adsorbent was prepared to separate CO2 gas generated from MSR process. Characteristies of carbonation and decarbonation of the adsorbent have been examine continuous reactor system in respect to temperature, concentrations at contact time. The decarbonation of CO2 onto adsorbents slowly occurred in this the temperature range from 850 ℃ to 950 ℃. However, the maximum carbonation ability was obtained at GHSV of 3,000 hr-1, temperature of 800 ℃ and CO2 concentration of 10% (N2 balance).
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