LIQUID-LIQUID EQUILIBRIUM OF SYSTEMS COMPOSED OF SOYBEAN OIL + MONOACYLGLYCEROLS + DIACYLGLYCEROLS + ETHYL OLEATE + OLEIC ACID + ETHANOL AT 303.15 AND 318.15 K

Autor(es)

Larissa C. B. A. Bessa ^[1] ; Eduardo A. C. Batista ^[2] ; Antonio J. A. Meirelles ^[3]

Afiliação do(s) autor(es)

^[1] University of Campinas. Department of Food Engineering. Laboratory of Extraction, Applied Thermodynamics and Equilibrium - Brasil

^[2] University of Campinas. Department of Food Engineering. Laboratory of Extraction, Applied Thermodynamics and Equilibrium - Brasil

^[3] University of Campinas. Department of Food Engineering. Laboratory of Extraction, Applied Thermodynamics and Equilibrium - Brasil

• Tipo de documento: Artigo Científico
• Fonte: Brazilian Journal of Chemical Engineering; v. 35, n. 2, p. 373-382, 2018-06-00.

Resumo

Abstract Steady increase in prices of petroleum-based fuels and growing environmental concerns are boosting attention to alternative fuels. In this context, biodiesel has drawn attention as an alternative fuel, especially as a substitute to traditional diesel. Biodiesel is commonly produced from triacylglycerols and alcohol through transesterification reaction. Knowledge of equilibrium phase distribution of key components in transesterification systems is essential for a better understanding of the reaction pathway and for guiding the design and optimization of reactors and the products separation. This study reports experimental results and thermodynamic modeling of the liquid-liquid equilibrium of systems composed of soybean oil + monoacylglycerols + diacylglycerols + ethyl oleate + oleic acid + ethanol at 303.15 and 318.15 K. Experimental data were well correlated using NRTL, with a maximum deviation of 0.688%. As for UNIFAC, the deviations between predicted and experimental data ranged from 3.13 to 9.21%. (AU)

• Processo FAPESP: 14/21252-0 - Equilíbrio e processos de produção de biocombustíveis e bioprodutos
• Beneficiário: Antonio José de Almeida Meirelles
• Linha de fomento: Auxílio à Pesquisa - Temático
• Processo FAPESP: 09/54137-1 - EMUS: aquisição de um analisador de distribuição de tamanho de partículas, um medidor de potencial zeta, um spray dryer e um sistema de cromatografia líquida de ultra alta pressão / espectrômetro de massa
• Beneficiário: Miriam Dupas Hubinger
• Linha de fomento: Auxílio à Pesquisa - Programa Equipamentos Multiusuários