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Received May 30, 2011
Accepted July 6, 2011
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이산화탄소 5 ton/day 흡수분리 Pilot Plant 운전 특성
The Operational Characteristics of CO2 5 ton/day Absorptive Separation Pilot Plant
충남대학교 화학공학과, 305-764 대전시 유성구 궁동 220 1한국에너지기술연구원, 305-343 대전시 유성구 장동 71-2
Chung Nam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea 1Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
sjpark@cnu.ac.kr
Korean Chemical Engineering Research, February 2012, 50(1), 128-134(7), NONE Epub 2 February 2012
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Abstract
석탄화력 발전소의 연소 배가스를 시간당 1,000 Nm3을 처리할 수 있는 이산화탄소 분리용 pilot plant를 설치하여 화학흡수제인 mono-ethanolamine(MEA)과 2-amino-2-methyl-1-propanol(AMP)를 이용해서 운전특성을 연소 배가스 유량과, 흡수용액 순환유량을 주 실험변수로 분석하였다. MEA 20 wt%를 기준으로 연소 배가스 유량이 100 m3/hr 감소할수록 이산화탄소 제거율이 평균 6.7% 증가하였으며 흡수용액 순환유량이 1,000 kg/hr 증가에 따라 이산화탄소 제거율은 약 2.8% 상승하였고 110 ℃ 재가열기 온도에서 90% 이상의 이산화탄소 제거효율을 나타냈다. MEA가 AMP보다 높은 제거효율을 보였고 MEA(20 wt%) 실험에서 이산화탄소의 제거율이 75.5%인 ASPEN plus의 모사 결과보다 10% 높은 85.5%로 나타났다.
The pilot scale experiments can handle the flue gas up to 1,000 Nm3/hr for separation of carbon dioxide included in real flue gas at coal-fired power plant. The operational characteristics was analyzed with the main experimental variables such as flue gas flow rate, absorbent circulation rate using chemical absorbents mono-ethanolamine(MEA) and 2-amino-2-methyl-1-propanol(AMP). The more flue gas flow rate decreased in 100 m3/hr in the MEA 20 wt% experiments, the more carbon dioxide removal efficiency was increased 6.7% on average. Carbon dioxide removal efficiency was increased approximately 2.8% according to raise of the 1,000 kg/hr absorbent circulation rate. It also was more than 90% at 110 ℃of re-boiler temperature. Carbon dioxide removal efficiency of the MEA was higher than that of the AMP. In the MEA(20 wt%) experiment, carbon dioxide removal efficiency(85.5%) was 10% higher than result(75.5%) of ASPEN plus simulation.
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Suh JM, Choi DH, Park JS, Kim JH, J. Korea Society of Environmental administration., 4(2), 33 (1998)
Korea Institute of Science and Technology, “A Study on the Scale-up of Packed Column,” (1991)
Caplow M, J.Am. Chem. Soc., 90, 6795 (1968)
Danckwerts PV, Chem. Eng. Sci., 34, 443 (1979)
Yih SM, Shen KP, Ind. Eng. Chem. Res., 27, 2237 (1988)
Kumar PS, Hogendoorn JA, Versteeg GF, Feron PHM, AIChE J., 49(1), 203 (2003)
Hook RJ, Ind. Eng. Chem. Res., 36(5), 1779 (1997)
Shim JG, Kim JH, Jang KR, Eum HM, J. Korean Society of Environmental Engineers., 25(12), 1557 (2003)
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Min BM, et al. “Development of Simultaneous Absorptive Separation Technology for Flue-gas Treatment,” KIER Research Report (2009)
