Isobaric vapor-liquid equilibrium for binary systems of isoamyl acetate + isoamyl alcohol and isoamyl acetate + n-hexanol at 50.00 and 101.33 kPa

被引：1
|
作者：
Zhou F. [1 ]
Chen C. [1 ]
Xu C. [1 ]
机构：
[1] State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin
来源：
Xu, Chunjian (cjxu@tju.edu.cn) | 2017年 / Materials China卷 / 68期
关键词：
Isoamyl acetate; Isoamyl alcohol; N-hexanol; Thermodynamic model; Vapor-liquid equilibrium;
D O I：
10.11949/j.issn.0438-1157.20160924
中图分类号：
学科分类号：
摘要：
Isobaric vapor-liquid equilibrium data of the binary systems isoamyl acetate + isoamyl alcohol and isoamyl acetate + n-hexanol at 50.00 and 101.33 kPa were measured using a vapor-liquid equilibrium still. The isoamyl acetate + isoamyl alcohol system formed a minimum temperature azeotrope at 50.00 kPa. The thermodynamic consistency of the VLE experimental data were checked by Herington method, and the results were satisfied with Gibbs-Duhem's thermodynamic consistency. The experimental measurements for the binary systems were correlated by nonrandom two-liquid (NRTL), Wilson and universal quasichemical (UNIQUAC) activity coefficient models. Then, the corresponding parameters for the three models were obtained. Compared with the experimental data, the root-mean-square deviations of the boiling temperature and the vapor mole fraction calculated with the correlated parameters were less than 0.20 K and 0.0050, respectively. The calculated results showed that the experimental data agreed well with NRTL, Wilson and UNIQUAC models. Wilson activity coefficient model was used to predict the azeotropic phenomenon of isoamyl acetate + isoamyl alcohol, which indicated that the azeotrope would disappear at 98.4 kPa. This work provided important engineering data for chemical database and further study in the engineering design containing isoamyl acetate. © All Right Reserved.
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页码：560 / 566
页数：6
相关论文
共 17 条
  • [1] Liu X.G., Yin Y.B., Shi M.C., Esterification of acetic acid with isoamyl alcohol over expandable graphite catalyst, Chem. World, 35, pp. 350-351, (1994)
  • [2] Krokhin N.G., Equiibrium liquid-vapor ratios in the system acetic acid-isoamyl alcohol-isoamyl acetate (II): Binary systems acetic acidisoamyl acetate and isoamyl alcohol-isoamyl acetate, Zh. Fiz. Khim., 41, pp. 1509-1511, (1967)
  • [3] Emilio A., Isobaric vapor-liquid equilibrium for binary mixtures of 3-methyl-1-butanol + 3-methyl-1-butyl ethanoate and 1-pentanol + pentyl ethanoate at 101.3 kPa, J. Chem. Eng. Data, 55, 6, pp. 2349-2354, (2010)
  • [4] Herrington E.F.G., Tests of consistency of experimental isobaric vapor-liquid equilibrium data, J. Inst. Pet., 37, pp. 467-470, (1951)
  • [5] Renon H., Prausnitz J.M., Local compositions in thermodynamic excess functions for liquid mixtures, AIChE J., 14, 1, pp. 135-144, (1968)
  • [6] Wilson G.M., A new expression for the excess free energy of mixing, J. Am. Chem. Soc., 86, 2, pp. 127-130, (1964)
  • [7] Abrams D.S., Prausnitz J.M., Statistical thermodynamics of liquid mixtures: a new expression for Gibbs energy of partly or completely miscible system, AIChE J., 21, 1, pp. 116-128, (1975)
  • [8] Zhang J., Liu Y., Meng N., Isobaric vapor-liquid equilibria of binary systems (propyl acetate + n pentanol), (propyl acetate + 1 methyl-1-butanol), and (propyl acetate + 3 methyl-1-butanol) at 101.3 kPa, J. Chem. Eng. Data, 58, 11, pp. 3254-3258, (2013)
  • [9] Rao D.S., Rao K.V., Prasad A.R., Et al., Extraction of acetonitrile from aqueous mixtures (II): Ternary liquid equilibria, J. Chem. Eng. Data, 24, 3, pp. 241-243, (1979)
  • [10] Sheu Y., Tu C., Densities and viscosities of binary mixtures of isoamyl acetate, ethyl caproate, ethyl benzoate, isoamyl butyrate, ethyl phenylacetate, and ethyl caprylate with ethanol at T=(288.15, 298.15, 308.15, and 318.15K), J. Chem. Eng. Data, 51, 2, pp. 496-503, (2006)
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