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BIBTEX RIS

Thermophysical properties of biodiesel and related systems: (Liquid + liquid) equilibrium data for soybean biodiesel

2012; Elsevier BV; Volume: 58; Linguagem: Inglês

10.1016/j.jct.2012.10.026

ISSN

1096-3626

Autores

Márcio A. Mazutti, Fernando Augusto Pedersen Voll, Lúcio Cardozo‐Filho, Marcos L. Corazza, Marcelo Lanza, Wagner Luiz Priamo, J. Vladimir Oliveira,

Tópico(s)

Phase Equilibria and Thermodynamics

Resumo

This work reports (liquid + liquid) equilibrium (LLE) data for the systems of interest in soybean biodiesel production. Numerical data for LLE were obtained for binary, ternary and quaternary systems comprising fatty acid methyl esters (FAME) and fatty acid ethyl esters (FAEE) from soybean oil, water, glycerol, methanol, and ethanol at temperatures of (303.15, 318.15, and 333.15) K. Quantification of compounds in equilibrium in both phases was determined by analytical methods whereas solubility curves (binodal) were obtained by the cloud-point method. For all systems investigated, good alignments were obtained between phase compositions and the initial as well as overall compositions hence indicating low deviations from the mass balance. Experimental results were correlated using the UNIQUAC model with satisfactory agreement between experiment and theory.

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