2014Journal of Chemical & Engineering DataRequires access

Isobaric Vapor–Liquid Equilibria of Binary Systems (Propyl Acetate + 2-Methylbutan-1-ol), (Propyl Acetate + Hexan-1-ol), and (Propyl Acetate + Heptan-1-ol) at 101.3 kPa

Ye Bai Qi, Yulong Liu, Jingwei Xie, Minqing Zhang

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Abstract

Isobaric vapor–liquid equilibrium (VLE) data for the binary systems formed by (propyl acetate +2-methylbutan-1-ol), (propyl acetate + hexan-1-ol), and (propyl acetate + heptan-1-ol) have been determined at the pressure of 101.3 kPa using an equilibrium still. The experimental data were checked through the semiempirical methods of Herington, and the thermodynamic consistency was satisfactory. The activity coefficients were correlated with the nonrandom two liquid (NRTL), Wilson, and universal quasichemical (UNIQUAC) models. In addition, the UNIQUAC functional-group activity coefficients (Do) model was used to correlate the VLE data. The NRTL model shows slightly better results compared with other three models among all three binary systems.

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What this paper is about

Isobaric vapor–liquid equilibrium (VLE) data for the binary systems formed by (propyl acetate +2-methylbutan-1-ol), (propyl acetate + hexan-1-ol), and (propyl acetate + heptan-1-ol) have been determined at the pressure of 101.3 kPa using an equilibrium still. The experimental data were checked through the semiempirical methods of Herington, and the thermodynamic consistency was satisfactory. The activity coefficients were correlated with the nonrandom two liquid (NRTL), Wilson, and universal quasichemical (UNIQUAC) models. In addition, the UNIQUAC functional-group activity coefficients (Do) model was used to correlate the VLE data. The NRTL model shows slightly better results compared with other three models among all three binary systems.

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Available abstract

Isobaric vapor–liquid equilibrium (VLE) data for the binary systems formed by (propyl acetate +2-methylbutan-1-ol), (propyl acetate + hexan-1-ol), and (propyl acetate + heptan-1-ol) have been determined at the pressure of 101.3 kPa using an equilibrium still. The experimental data were checked through the semiempirical methods of Herington, and the thermodynamic consistency was satisfactory. The activity coefficients were correlated with the nonrandom two liquid (NRTL), Wilson, and universal quasichemical (UNIQUAC) models. In addition, the UNIQUAC functional-group activity coefficients (Do) model was used to correlate the VLE data. The NRTL model shows slightly better results compared with other three models among all three binary systems.

Key concepts: UNIQUAC, Non-random two-liquid model, Isobaric process, Chemistry, Activity coefficient, Thermodynamics, Butyl acetate, Ethyl acetate

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Isobaric Vapor–Liquid Equilibria of Binary Systems (Propyl Acetate + 2-Methylbutan-1-ol), (Propyl Acetate + Hexan-1-ol), and (Propyl Acetate + Heptan-1-ol) at 101.3 kPa — Research Paper | ScholarLens