화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2011년 봄 (04/27 ~ 04/29, 창원컨벤션센터)
권호 17권 1호, p.629
발표분야 열역학
제목 Simultaneous Measurements of excess enthalpies and solubilities for binary systems of carbon dioxide + ionic liquids using a high-pressure microcalorimeter
초록 Ionic liquid (ILs) have received a great attention as the environmentally benign solvent. Due to their unique properties, recent interest in the measurement of gas solubilities and excess molar enthalpies (HE) for systems containing ionic liquids has led to a rapid increase in available data. In this study HEs and solubilities for binary systems of carbon dioxide + ionic liquids were measured simultaneously at various pressures in the vicinity of the critical point of carbon dioxide using a high pressure isothermal microcalorimeter equiped with a specific measuring cell. The strong dependence of HE and gas solubilities on pressure at this area were observed. Excess molar enthalpies and solubilities were correlated using a composition-dependent equation based on the Lattice theory.
저자 이채구, 유성식
소속 한국기술교육대
키워드 solubility; ionic liquid; isothermal microcalorimeter; excess molar enthalpy; carbon dioxide
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