Annas Wiguno, Asalil Mustain, Wahyu Fazar Eka Irwansyah, Gede Wibawa
Isothermal vapor-liquid equilibrium (VLE) data for two binary mixtures of methanol + glycerol and 1-propanol + glycerol were determined at the temperature range from (313.15 to 363.15) K using a simple quasi-static ebulliometer. All systems showed that the vapor pressures increased with increasing alcohols (methanol or 1- propanol) concentrations at corresponding system. The Wilson, Non-Random Two-Liquid (NRTL) and Universal Quasi-Chemical (UNIQUAC) activity coefficient models were used to correlate the experimental data. Both systems showed slightly deviations from the ideal liquid phase behavior. © 2016, Gadjah Mada University. All rights reserved.
Department of Chemical Engineering, Sepuluh Nopember Institute of Technology (ITS), Kampus ITS, Sukolilo, Surabaya, 60111, Indonesia; Department of Chemical Engineering, State Polytechnic of Malang, Jl. Soekarno Hatta No. 9, Malang, 65141, Indonesia