Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate

CIESC Journal ›› 2011, Vol. 19 ›› Issue (4): 703-708.

• • 上一篇

Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate

邓东顺, 汪如发, 章连众, 葛绮, 计建炳

Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, China

收稿日期:2010-12-06 修回日期:2011-04-11 出版日期:2011-08-28 发布日期:2011-08-28
通讯作者: ZHANG Lianzhong,E-mail:zhanglz@zjut.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (20776132)

Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate

DENG Dongshun, WANG Rufa, ZHANG Lianzhong, GE Yun, JI Jianbing

Zhejiang Province Key Laboratory of Biofuel, College of Chemical Engineering and Material Science, Zhejiang University of Technology, Hangzhou 310014, China

Received:2010-12-06 Revised:2011-04-11 Online:2011-08-28 Published:2011-08-28
Supported by:
Supported by the National Natural Science Foundation of China (20776132)

摘要/Abstract

摘要： Vapor-liquid equilibrium(VLE) data were measured for ternary system water+ethanol+1-butyl-3methylimidazolium 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.

关键词: vapor-liquid equilibrium, eNRTL equation, ionic liquid, ethanol, activity coefficient, relative volatility

Abstract: Vapor-liquid equilibrium(VLE) data were measured for ternary system water+ethanol+1-butyl-3methylimidazolium 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.

Key words: vapor-liquid equilibrium, eNRTL equation, ionic liquid, ethanol, activity coefficient, relative volatility

邓东顺, 汪如发, 章连众, 葛绮, 计建炳. Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate [J]. CIESC Journal, 2011, 19(4): 703-708.

DENG Dongshun, WANG Rufa, ZHANG Lianzhong, GE Yun, JI Jianbing. Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate [J]. , 2011, 19(4): 703-708.

参考文献

1 Seiler, M., Jork, C., Karvanou, A., Arlt, W., Hirsch, R., “Separation of azeotropic mixtures using hyperbranched polymers or ionic liquids”, AIChE J., 50 (10), 2439-2454 (2004).
2 Marsh, K.N., Boxall, J.A., Lichtenthaler, R., “Room temperature ionic liquids and their mixtures-a review”, Fluid Phase Equilib., 219 (1), 93-98 (2004).
3 Kato, R., Gmehling, J., “Systems with ionic liquids:Measurement of VLE and γ ∞ data and prediction of their thermodynamic behavior using original UNIFAC, mod. UNIFAC(Do) and COSMO-RS(Ol)”, J. Chem. Thermodyn., 37 (6), 603-619 (2005).
4 Lei, Z.G., Arlt, W., Wasserscheid, P., “Separation of 1-hexene and n-hexane with ionic liquids”, Fluid Phase Equilib., 241 (1-2), 290-299 (2006).
5 Wang, J.F., Li, C.X., Wang, Z.H., Li, Z.J., Jiang, Y.B., “Vapor pressure measurement for water, methanol, ethanol, and their binary mixtures in the presence of an ionic liquid 1-ethyl-3-methylimidazolium dimethylphosphate”, Fluid Phase Equilib., 255 (2), 186-192 (2007).
6 Orchilles, A.V., Miguel, P.J., Vercher, E., Martínez-Andreu, A., “Isobaric vapor-liquid equilibria for ethyl acetate+ethanol+1-ethyl-3-methylimidazolium trifluoromethanesulfonate at 100 kPa”, J. Chem. Eng. Data, 52 (6), 2325-2330 (2007).
7 Li, Q.S., Xing, F.Y., Lei, Z.G., Wang, B.H., Chang, Q.L., “Isobaric vapor-liquid equilibrium for isopropanol+water+1-ethyl-3methylimidazolium tetrafluoroborate”, J. Chem. Eng. Data, 53 (1), 275-279 (2008).
8 Westerholt, A., Liebert, V., Gmehling, J., “Influence of ionic liquids on the separation factor of three standard separation problems”, Fluid Phase Equilib., 280 (1), 56-60 (2009).
9 Zhang, L.Z., Ge, Y., Ji, D. X., Ji, J. B., “Experimental measurement and modeling of vapor-liquid equilibrium for ternary systems containing ionic liquids:A case study for the system water+ethanol+1-hexyl-3-methylimidazolium chloride”, J. Chem. Eng. Data, 54 (8), 2322-2329 (2009).
10 Geng, W., Zhang, L.Z., Deng, D.S., Ge, Y., Ji, J.B., “Experimental measurement and modeling of vapor-liquid equilibrium for the ternary system water+ethanol+1-butyl-3-methylimidazolium chloride”, J. Chem. Eng. Data, 55 (4), 1679-1683 (2010).
11 Renon, H., Prausnitz, J. M., “Local compositions in thermodynamic excess functions for liquid mixtures”, AIChE J., 14 (1), 135-144 (1968).
12 Ge, Y., Zhang, L.Z., Yuan, X.C., Geng, W., Ji, J.B., “Selection of ionic liquids as entrainers for separation of (water+ethanol)”, J. Chem. Thermodyn., 40 (8), 1248-1252 (2008).
13 Gordon, C.M., “Synthesis of ionic liquids”, In:Ionic Liquids in Synthesis, Wasserscheid, P., Welton, T., eds., Wiley-VCH, Weiheim, 7-21 (2003).
14 Zhang, L.Z., Ji, J.B., Deng, D.S., Shu, Z.J., Chen, X., “Method for manufacturing acetic acid type ionic liquids”, CN Pat., 200710070383.X (2007).
15 Zhang, L.Z., Deng, D.S., Han, J.Z., Ji, D.X., Ji, J.B., “Isobaric vaporliquid equilibria for water+2-propanol+1-butyl-3-methylimidazolium tetrafluoroborate”, J. Chem. Eng. Data, 52 (1), 199-205 (2007).
16 Zhang, L.Z., Han, J.Z., Deng, D.S., Ji, J.B., “Selection of ionic liquids as entrainers for separation of water and 2-propanol”, Fluid Phase Equilib., 255 (2), 179-185 (2007).
17 Zhang, L.Z., Yuan, X.C., Qiao, B.B., Qi, R.Z., Ji, J.B., “Isobaric vapor-liquid equilibria for water+ethanol+ethyl acetate+1-butyl-3-methylimidazolium acetate at low water mole fractions”, J. Chem. Eng. Data, 53 (7), 1595-1601 (2008).
18 Reid, R., Prausnitz, J.M., Poling, B., The Properties of Gases and Liquids, McGraw-Hill, New York, Appendix A (1987).
19 Mock, B., Evans, L.B., Chen, C.C., “Thermodynamic representation of phase equilibria of mixed-solvent electrolyte”, AIChE J., 32 (10), 1655-1664 (1986).
20 Vercher, E., Rojo, F.J., Martínez-Andreu, A., “Isobaric vapor-liquid equilibria for 1-propanol+water+calcium nitrate”, J. Chem. Eng. Data, 44 (6), 1216-1221 (1999).
21 Gmehling, J., Onken, U., Rearey-Nies, J.R., Vapor-Liquid Equilibrium Data Collection, DECHEMA, Frankfurt, Vol. I, Part Ib (1988).

[1]	张成明, 杜风光, 王欣, 毛忠贵, 孙沛勇, 唐蕾, 张建华. 酒精-沼气双发酵耦联工艺中丙酸对酿酒酵母酒精发酵的影响[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 942-949.
[2]	陈惠玲, 王栓紧, 肖敏, 韩冬梅, 卢一新, 孟跃中. 0.4 nm分子筛负载Cu-Ni双金属催化剂用于CO₂和CH₃OH直接合成碳酸二甲酯[J]. Chinese Journal of Chemical Engineering, 2012, 20(5): 906-913.
[3]	SUSIAL P., RODRIGUEZ-HENRIQUEZ J.J., SOSA-ROSARIO A., RIOS-SANTANA R.. 乙酸乙酯与C_nH_2n+1OH (n=1,2,3)双系统在0.3 MPa下的气液平衡[J]. Chinese Journal of Chemical Engineering, 2012, 20(4): 723-730.
[4]	赵志军, 董海峰, 张香平. 离子液体捕集二氧化碳的研究进展[J]. CIESC Journal, 2012, 20(1): 120-129.
[5]	叶春波, 陈光文, 袁权. 微通道内乙醇胺吸收CO₂的过程特征[J]. CIESC Journal, 2012, 20(1): 111-119.
[6]	王威, 刘郁, 徐爱梅, 杨华玲, 崔红敏, 陈继. 具有羧酸官能团的功能性离子液体萃取分离钇的研究[J]. CIESC Journal, 2012, 20(1): 40-46.
[7]	周华从, 李伟, 寿庆辉, 高红帅, 徐芃, 邓伏礼, 刘会洲. 离子液体修饰超顺磁性纳米颗粒用于青霉素G酰化酶固定化[J]. CIESC Journal, 2012, 20(1): 146-151.
[8]	解美莹, 李沛沛, 郭惠锋, 高丽霞, 余江. 三元铁基离子液体-乙醇-水体系的湿法烟气脱硫性能研究[J]. CIESC Journal, 2012, 20(1): 140-145.
[9]	郑勇, 张锁江, 吕兴梅, 王倩, 左勇, 刘恋. 铝在路易斯酸性1-烯丙基-3甲基米唑氯铝酸离子液体中的低温电沉积[J]. CIESC Journal, 2012, 20(1): 130-139.
[10]	王普, 苏会贞, 孙立明, 何军邀, 吕亚萍. Asymmetric Bioreduction of 3,5-Bis(trifluoromethyl) Acetophenone to Its Corresponding Alcohol by Candida tropicalis[J]. CIESC Journal, 2011, 19(6): 1028-1032.
[11]	马俊, 李进龙, 范冬福, 彭昌军, 刘洪来, 胡英. Modeling pVT Properties and Vapor-Liquid Equilibrium of Ionic Liquids Using Cubic-plus-association Equation of State[J]. CIESC Journal, 2011, 19(6): 1009-1016.
[12]	吴洪, 李宪实, 聂明成, 李犇, 姜忠义. Integral PVA-PES Composite Membranes by Surface Segregation Method for Pervaporation Dehydration of Ethanol[J]. CIESC Journal, 2011, 19(5): 855-862.
[13]	蔡贾林, 崔现宝, 杨志才. Simulation for Transesterification of Methyl Acetate and n-Butanol in a Reactive and Extractive Distillation Column Using Ionic Liquids as Entrainer and Catalyst[J]. CIESC Journal, 2011, 19(5): 754-762.
[14]	刘少友, 陆建平, 冯庆革, 唐文华. Effect of Ethanol on Synthesis and Electrochemical Property of Mesoporous Al-doped Titanium Dioxide via Solid-state Reaction [J]. CIESC Journal, 2011, 19(4): 674-681.
[15]	李进龙, 何昌春, 马俊, 彭昌军, 刘洪来, 胡英. Modeling of Surface Tension and Viscosity for Non-electrolyte Systems by Means of the Equation of State for Square-well Chain Fluids with Variable Interaction Range[J]. CIESC Journal, 2011, 19(4): 533-543.

Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate

Vapor-Liquid Equilibrium Measurements and Modeling for Ternary System Water+Ethanol+1-Butyl-3-methylimidazolium Acetate

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价