Isobaric Vapor–Liquid Phase Equilibrium Measurements for Allyl Alcohol with Chloroform, Ethyl Acetate, and Methyl Propionate at 101.3 kPa

• Published in: Journal of chemical and engineering data 2019-02, Vol.64 (2), p.682-687
• Main Authors: Diao, Baotao, Wang, Ke, Xu, Dongmei, Gao, Jun, Ma, Zhun, Zhang, Lianzheng, Wang, Yinglong
• Format: Article
• Language: English
• ISSN: 0021-9568; 1520-5134
• DOI: 10.1021/acs.jced.8b00908

For separation of the azeotrope allyl alcohol and water by azeotropic distillation, chloroform, ethyl acetate, and methyl propionate were selected as the azeotropic agents. In this work, the vapor–liquid phase equilibrium (VLE) data for the binary systems (allyl alcohol + chloroform/ethyl acetate/methyl propionate) were measured at 101.3 kPa using a modified Rose still. The VLE experimental data were checked by Herington and van Ness methods to verify the thermodynamic consistency. The excess Gibbs energy G E was calculated to evaluate the nonideality for three binary systems. Meanwhile, three thermodynamic models nonrandom two-liquid, universal quasichemical, and Wilson were adopted to correlate the experimental data, and the binary interaction parameters of the three models were regressed. The root-mean-square deviations of vapor composition (y 1) and equilibrium temperature (T) are less than 0.0057 and 0.18 K, respectively, which indicates that the experimental data were well correlated by three models.