The aim of this paper is to bring valuable phase equilibria information for the design and operation of biolubricant
and related biofuel product processes. As a result, Vapor-Liquid Equilibrium (VLE) measurements, at
different temperatures, pressures and global compositions, for the ternary systems [Ethanol + 2-Ethyl-1-hexanol
+ 1-Dodecanol] and [Ethanol + 1-Octanol + 1-Dodecanol], as well as a multicomponent system containing these
alcohols together with Balanites aegyptiaca fatty acid ethyl esters are reported for the first time (data pressure and
temperature ranges: 4394–26790 Pa, 306–423 K). The Dortmund modified UNIFAC model showed very high
accuracy in the prediction of these VLE, with overall average absolute deviations on the liquid and vapor molar
compositions of 0.007 and 0.0003 for the ternary systems, 0.003 and 0.006 for the multicomponent system.
The authors express their acknowledgments to the ENSIC students
who contributed to this work through their Master 1 training. S.P.P.
thanks support to project CIMO-Mountain Research Center, UIDB/00690/2020, financed by national funds through the Portuguese Foundation
for Science and Technology/MCTES.
