Effect of imidazolium-based ionic liquid on vapor liquid equilibria of 2-propanol + acetonitrile binary system at 101.3 kPa

被引:13
作者
Zhu, Wei [1 ]
Qing, Li [1 ]
Liu, Bing [1 ]
Cai, Xinbing [2 ]
Fan, Zenglu [2 ]
机构
[1] Xian Polytech Univ, Coll Environm & Chem Engn, Xian 710048, Peoples R China
[2] Xian Polytech Univ, Text & Mat Coll, Xian 710048, Peoples R China
关键词
Vapor-liquid equilibrium; 2-propanol; Acetonitrile; 1-ethyl-3-methylimidazolium; tetrafluoroborate; 1-butyl-3-methylimidazolium; EXTRACTIVE DISTILLATION; MIXTURES; METHANOL; ETHANOL; ACETONITRILE;
D O I
10.1016/j.fluid.2015.10.035
中图分类号
O414.1 [热力学];
学科分类号
摘要
Vapor liquid equilibrium (VLE) data for one binary system (2-propanol + acetonitrile) and two ternary systems {2-propanol + acetonitrile + 1-ethyl-3-methylimidazolium tetrafluoroborate ([EMIM][BF4]), 2-propanol + acetonitrile + 1-butyl-3- methylimidazolium tetrafluoroborate ([BMIM][BF4])} were determined at atmospheric pressure (101.3 kPa). It was found that the studied ionic liquids (ILs) both showed a salting-out effect, which leads to the elimination of the azeotropic point, and that the order of separation capacity for imidazolium-based ILs is [EMIM][BF4] > [BMIM][BF4]. All experimental data could be well correlated by nonrandom two-liquid (NRTL) model. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码:383 / 387
页数:5
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