Liquid-liquid equilibrium during ethanolysis of soybean oil

Autor(es)

Ferreira, Marcela Cravo ^[1] ; Bessa, Larissa C. B. A. ^[1] ; Meirelles, Antonio J. A. ^[1] ; Caldas Batista, Eduardo Augusto ^[1]

Afiliação do(s) autor(es)

^[1] Univ Estadual Campinas, UNICAMP, Fac Food Engn FEA, EXTRAE, Dept Food Engn DEA, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Fluid Phase Equilibria; v. 473, p. 286-293, OCT 15 2018.
• Citações Web of Science: 6

Resumo

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. (C) 2018 Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 14/21252-0 - Equilíbrio e processos de produção de biocombustíveis e bioprodutos
• Beneficiário: Antonio José de Almeida Meirelles
• Modalidade de apoio: Auxílio à Pesquisa - Temático
• Processo FAPESP: 16/10636-8 - Da fábrica celular à biorrefinaria integrada Biodiesel-Bioetanol: uma abordagem sistêmica aplicada a problemas complexos em micro e macroescalas
• Beneficiário: Roberto de Campos Giordano
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Temático