Journal of Chemical Thermodynamics, Vol.43, No.12, 1870-1876, 2011
(Vapor plus liquid) equilibrium for the binary systems {water plus glycerol} and {ethanol plus glycerol, ethyl stearate, and ethyl palmitate} at low pressures
This work reports the experimental measurements {(vapor + liquid) equilibrium} for the systems {water(1) + glycerol(2)}, {ethanol(1)+ glycerol(2)}, {ethanol(1)+ ethyl stearate(2)}, and {ethanol(1)+ ethyl palmitate(2)}. Boiling temperatures were measured using an Othmer-type ebulliometer over a pressure range of 14 kPa to 96 kPa. The experimental data were well correlated using the NRTL and UNIQUAC models. The performance of the UNIFAC-Dortmund model in relation to predicting the phase equilibrium of the systems was also studied. (C) 2011 Elsevier Ltd. All rights reserved.