Isobaric vapor–liquid equilibrium for the three binary systems of C14–C16n-alkane + methyl myristate at 5.00 kPa

Abstract

In this work, new isobaric vapor–liquid equilibrium (VLE) data for the three binary mixtures (n-tetradecane+methyl myristate), (n-pentadecane+methyl myristate) and (n-hexadecane+methyl myristate) have been determined at 5.00kPa by a Rose still. The three binary systems exhibit positive deviations and do not have an azeotropic point. All the experimental data were confirmed to be thermodynamic consistent using the van Ness method. The NRTL, UNIQUAC, and Wilson activity coefficient models were applied to regress the experimental VLE data and the new binary interaction parameters for the three models were obtained. The correlated values of the three models were compared with the measured data, the average absolute deviations of the temperatures and the vapor compositions for all the systems were less than 0.23K and 0.0024, respectively. Therefore, the three activity coefficient models are suitable for all the three binary systems.