| 水-乙醇-1-丁基-3-甲基咪唑乙酸盐三元体系汽液平衡测定及模型 |
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| 引用本文： | 邓东顺,汪如发,章连众,葛筠,计建炳.水-乙醇-1-丁基-3-甲基咪唑乙酸盐三元体系汽液平衡测定及模型[J].中国化学工程学报,2011,19(4):703-708. |
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| 作者姓名： | 邓东顺 汪如发 章连众 葛筠 计建炳 |
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| 作者单位： | Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (20776132) |
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| 摘 要： | Vapor-liquid equilibrium (VLE) data were measured for ternary system water + ethanol + 1-butyl-3- methylimidazolium acetate (bmim]OAc]), in a relatively wide range of ionic liquid (IL) mass fractions up to 0.8. Six sets of complete T-x-y data were obtained, in which the mole fraction of ethanol on IL-free basis was fixed separately at 0.1, 0.2, 0.4, 0.6, 0.8, and approximate 0.98. The non-random-two-liquid (NRTL) and electrolyte non-random-two-liquid (eNRTL) equations were used for correlation, showing similar deviations. The ternary VLE was also modeled with the correlation from two data sets, with the mole fractions of ethanol on IL-free basis being 0.1 and approximate 0.98. The VLE data were also reproduced satisfactorily. With the eNRTL model, the root-mean-square deviation for temperature is 0.79 K and that for vapor-phase mole fraction is 0.0094. The calculations are in good agreement with experimental data. The effect of the IL on the VLE behavior of the volatile components is also illustrated.
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| 关 键 词： | 三元体系 乙醇 平衡测量 醋酸 甲基咪唑 丁基 建模 汽液平衡 |
| 收稿时间： | 2010-12-6 |
| 修稿时间： | 2011-4-11
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Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water + Ethanol + 1-Butyl-3-methylimidazolium Acetate |
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| Dongshun DENG,Rufa WANG,Lianzhong ZHANG,Yun GE,Jianbing JI.Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water + Ethanol + 1-Butyl-3-methylimidazolium Acetate[J].Chinese Journal of Chemical Engineering,2011,19(4):703-708. |
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| Authors: | Dongshun DENG Rufa WANG Lianzhong ZHANG Yun GE Jianbing JI |
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| Affiliation: | Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, China |
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| Abstract: | Vapor-liquid equilibrium (VLE) data were measured for ternary system water + ethanol + 1-butyl-3- methylimidazolium acetate (bmim]OAc]), in a relatively wide range of ionic liquid (IL) mass fractions up to 0.8. Six sets of complete T-x-y data were obtained, in which the mole fraction of ethanol on IL-free basis was fixed separately at 0.1, 0.2, 0.4, 0.6, 0.8, and approximate 0.98. The non-random-two-liquid (NRTL) and electrolyte non-random-two-liquid (eNRTL) equations were used for correlation, showing similar deviations. The ternary VLE was also modeled with the correlation from two data sets, with the mole fractions of ethanol on IL-free basis being 0.1 and approximate 0.98. The VLE data were also reproduced satisfactorily. With the eNRTL model, the root-mean-square deviation for temperature is 0.79 K and that for vapor-phase mole fraction is 0.0094. The calculations are in good agreement with experimental data. The effect of the IL on the VLE behavior of the volatile components is also illustrated. |
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| Keywords: | vapor-liquid equilibrium eNRTL equation ionic liquid ethanol activity coefficient relative volatility |
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