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Advisor(s)
Abstract(s)
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.
Description
Keywords
Vapor-liquid equilibria Multicomponent systems Ebulliometry Dortmund modified UNIFAC Biodiesel Biolubricants
Pedagogical Context
Citation
Roze, Frédéric; Pignat, Patrice; Ferreira, Olga: Pinho, Simão; Jaubert, Jean-Noël; Coniglio, Lucie (2021). Phase equilibria of mixtures involving fatty acid ethyl esters and fat alcohols between 4 and 27 kPa for bioproduct production. Fuel. ISSN 0016-2361. 306, p. 1-9