Phase Equilibrium of Binary Mixtures of n-Hexane + Branched Chlorobutanes: Experimental Results and Group Contribution Predictions
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- 作者：Victor Ant贸n ; Ma Carmen Lopez ; Beatriz Giner ; Carlos Lafuente
- 刊名：Journal of Chemical & Engineering Data
- 出版年：2014
- 出版时间：October 9, 2014
- 年：2014
- 卷：59
- 期：10
- 页码：3017-3024
- 全文大小：352K
- ISSN：1520-5134
文摘
In this work the study of the phase equilibrium (experimental and modeled) of three binary mixtures formed by n-hexane and a branched chlorobutane (2-chlorobutane, 1-chloro-2-methylpropane, or 2-chloro-2-methylpropane) is presented. New and consistent experimental vapor鈥搇iquid equilibrium data at isothermal conditions T = (288.15, 298.15, and 308.15) K have been obtained and correlated using the Wilson equation. In addition, two group contribution models, modified-UNIFAC (universal functional activity coefficient) and VTPR (volume-translated Peng鈥揜obinson), have been used to predict the vapor鈥搇iquid equilibrium of the mixtures. The agreement between experimental results and predicted ones is not satisfactory.