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Type: Artigo de periódico
Title: Thermodynamic analysis of fatty acid esterification for fatty acid alkyl esters production
Author: Voll, FAP
da Silva, C
Rossi, CCRS
Guirardello, R
de Castilhos, F
Oliveira, JV
Cardozo, L
Abstract: The development of renewable energy source alternatives has become a planet need because of the unavoidable fossil fuel scarcity and for that reason biodiesel production has attracted growing interest over the last decade. The reaction yield for obtaining fatty acid alkyl esters varies significantly according to the operating conditions such as temperature and the feed reactants ratio and thus investigation of the thermodynamics involved in such reactional systems may afford important knowledge on the effects of process variables on biodiesel production. The present work reports a thermodynamic analysis of fatty acid esterification reaction at low pressure. For this purpose, Gibbs free energy minimization was employed with UNIFAC and modified Wilson thermodynamic models through a nonlinear programming model implementation. The methodology employed is shown to reproduce the most relevant investigations involving experimental studies and thermodynamic analysis. (C) 2010 Elsevier Ltd. All rights reserved.
Subject: Fatty acid alkyl esters production
Thermodynamic analysis
Gibbs free energy minimization
Free fatty acid
Country: Inglaterra
Editor: Pergamon-elsevier Science Ltd
Citation: Biomass & Bioenergy. Pergamon-elsevier Science Ltd, v. 35, n. 2, n. 781, n. 788, 2011.
Rights: fechado
Identifier DOI: 10.1016/j.biombioe.2010.10.035
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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