화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2005년 가을 (10/21 ~ 10/22, 인하대학교)
권호 11권 2호, p.2381
발표분야 열역학
제목 High-Pressure Phase Behavior of Carbon Dioxide in Ionic Liquid: 1-Alkyl-3-Methylimidazolium bis(Trifluoromethylsulfonyl)imide
초록 In order to gain insight into the phase behavior of ionic liquids + supercritical fluids, the phase boundaries of a binary mixture of an ionic liquid and a supercritical fluid has been studied experimentally. High-pressure phase behavior of carbon dioxide in the ionic liquid 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Cn-mim][Tf2N]) are presented in a wide range of solution concentration at temperatures between 303 K to 343 K and at pressures up to 40 MPa. The equilibrium pressure at a given temperature and concentration were measured using a high-pressure apparatus equipped with a variable-volume cell. The equilibrium pressure increased very sharply with increasing concentration of CO2 in the ionic liquid-rich phase. The solubility of CO2 in the ionic liquid-rich phase decreased with an increase in temperature.
저자 오세균, 이병철
소속 한남대
키워드 ionic liquid; phase behavior; supercritical; solubility; carbon dioxide
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