Vapor-liquid equilibria for the ternary system ethanol + water+1-ethyl-3-methylimidazolium ethylsulfate and the corresponding binary systems containing the ionic liquid at 101.3 kPa

被引:112
作者
Calvar, Noelia [1 ]
Gonzalez, Begona [1 ]
Gomez, Elena [1 ]
Dominguez, Angeles [1 ]
机构
[1] Univ Vigo, Dept Chem Engn, Vigo 36310, Spain
关键词
D O I
10.1021/je700710d
中图分类号
O414.1 [热力学];
学科分类号
摘要
In this work, experimental data of isobaric vapor-liquid equilibria (VLE) for the ternary system ethanol + water + 1-ethyl-3-methylimidazolium ethylsulfate (EMISE) and for the corresponding binary systems containing the ionic liquid (ethanol + EMISE, water + EMISE) were carried out at 101.3 kPa. VLE data of binary systems were correlated using the e-NRTL and NRTL equations. With the obtained parameters, we can predict the behavior of the ternary system. In addition, the ternary system was correlated using the NRTL equation. A study of the evolution of the ethanol + water azeotrope composition with different amounts of ionic liquid was made.
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页码:820 / 825
页数:6
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