Experiment and model for the surface tension of amine-ionic liquids aqueous solutions

被引：8
|
作者：
Zhang, Pan [1 ]
Du, LeiXia [1 ]
Fu, Dong [1 ]
机构：
[1] North China Elect Power Univ, Sch Environm Sci & Engn, Baoding 071003, Peoples R China
来源：
JOURNAL OF CHEMICAL THERMODYNAMICS | 2014年 / 74卷
基金：
中国国家自然科学基金;
关键词：
Surface tension; MEA; DEA; Bmim][BF4; Bmim][Br; CARBON-DIOXIDE; BINARY-MIXTURES; FLUE-GAS; GRADIENT THEORY; 1-BUTYL-3-METHYLIMIDAZOLIUM TETRAFLUOROBORATE; N-METHYLDIETHANOLAMINE; TERTIARY MIXTURES; TERNARY MIXTURES; CO2; CAPTURE; SOLUBILITY;
D O I：
10.1016/j.jct.2014.03.032
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The surface tension (c) of 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim][BF4])-monoethanolamine (MEA), 1-butyl-3-methylimidazolium bromide ([Bmim][Br])-MEA, [Bmim][BF4]-diethanolamine (DEA) and [Bmim][Br]-DEA aqueous solutions was measured by using the BZY-1 surface tension meter. The temperature ranged from (293.2 to 323.2) K. The mass fraction of amines and ionic liquids (ILS) respectively ranged from 0.15 to 0.30 and 0.05 to 0.10. A thermodynamic equation was proposed to model the surface tension of amines-ILS aqueous solutions and the calculated results agreed well with the experiments. The effects of temperature, mass fraction of amines and ILS on the surface tension were demonstrated on the basis of experiments and calculations. (C) 2014 Elsevier Ltd. All rights reserved.
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页码：1 / 6
页数：6
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