Open AccessIsobaric vapor-liquid equilibrium of methanol + glycerol binary mixture at 31.3 kPa
Author(s) -
Moh Arif Batutah,
K Kuswandi,
Gede Wibawa
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/778/1/012160
Subject(s) - uniquac , non random two liquid model , unifac , isobaric process , thermodynamics , vapor–liquid equilibrium , binary number , chemistry , work (physics) , methanol , activity coefficient , chromatography , organic chemistry , mathematics , physics , aqueous solution , arithmetic
In this study the binary vapor-liquid equilibrium (VLE) data of methanol + glycerol system were determined experimentally of using modified Glass Otmher - Still. The equilibrium compositions of liquid and vapor phases were analysis using refractometer index type Bausch and Lomb ABBE. The experimental data obtained in this work were thermodynamically consistent based on the area test. The experimental data were correlated well with the Wilson and Non Random Two Liquid (NRTL) and Universal Quasi-Chemical (UNIQUAC) models. The performance of Universal Chemical Functional Group Activity Coefficients (UNIFAC) in predicting VLE of the system studied were evaluated as well.