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Type: Artigo
Title: Liquid-liquid equilibrium during ethanolysis of soybean oil
Author: Ferreira, Marcela Cravo
Bessa, Larissa C. B. A.
Meirelles, Antonio J. A.
Batista, Eduardo Augusto Caldas
Abstract: This study obtained the liquid-liquid equilibrium (LLE) data for systems involved in the stepwise ethanolysis of soybean oil. Experiments were performed in a 1:9 M ratio (soybean oil:ethanol), at a reaction temperature of 303 K, in two different catalyst concentrations (0.02% and 0.5% of NaOH). Data on phase equilibrium allowed analyzing the presence of biphasic and monophasic regions during the ethanolysis and the phase distribution of partial acylglycerols and esters. Two different sets of UNIFAC binary interaction parameters were used to test their ability to predict the data obtained. As expected, the original parameters could not describe well this kind of system. Nevertheless, an alternative set of parameters obtained from the literature, adjusted to the liquid-liquid equilibrium data of systems in biodiesel production, was able to properly predict these LLE experimental data
Subject: Equilíbrio líquido-líquido
Country: Países Baixos
Editor: Elsevier
Rights: Fechado
Identifier DOI: 10.1016/j.fluid.2018.06.020
Date Issue: 2018
Appears in Collections:FEA - Artigos e Outros Documentos

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