Prediction of different thermodynamic properties for systems of alcohols and sulfate-based anion Ionic Liquids using modified UNIFAC

被引：30
|
作者：
Hector, Torben [1 ]
Uhlig, Lisa [1 ]
Gmehling, Juergen [1 ]
机构：
[1] Carl von Ossietzky Univ Oldenburg, D-26111 Oldenburg, Germany
来源：
FLUID PHASE EQUILIBRIA | 2013年 / 338卷
关键词：
Ionic Liquids; Activity coefficients at infinite dilution; Vapor-liquid equilibria; Excess enthalpies; Modified UNIFAC (Dortmund); ACTIVITY-COEFFICIENTS; INFINITE DILUTION; MIXTURES; MATRIX; MODEL; VLE;
D O I：
10.1016/j.fluid.2012.11.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Activity coefficients at infinite dilution in the temperature range between 303.15 K and 353.15 K, vapor-liquid equilibria at 353.15 K and excess enthalpies at 353.15 K of binary systems containing the Ionic Liquids 1-ethyl-3-methyl-imidazolium ethylsulfate [EMIM](+)[EtSO4](-), 1-ethyl-3-methyl-imidazolium methylsulfate [EMIM](+)[MeSO4](-) and 1-ethyl-3-methyl-imidazolium hydrogensulfate [EMIM](+)[HSO4](-) have been measured. The obtained experimental data are used together with literature data to fit modified UNIFAC interaction parameters between the sulfate anion and the main groups OH and CH3OH. The predictions are compared with the experimental values. Additionally an overview about the current status of the modified UNIFAC parameter matrix for Ionic Liquids is given. (c) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码：135 / 140
页数：6
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