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(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

Vapor-liquid equilibria of monoacylglicerol plus monoacylglicerol or alcohol or fatty acid at subatmospheric pressures

Texto completo
Autor(es):
Damaceno, Daniela S. [1] ; Ceriani, Roberta [1]
Número total de Autores: 2
Afiliação do(s) autor(es):
[1] Univ Estadual Campinas, Fac Chem Engn, Av Albert Einstein 500, BR-13083852 Campinas, SP - Brazil
Número total de Afiliações: 1
Tipo de documento: Artigo Científico
Fonte: Fluid Phase Equilibria; v. 452, p. 135-142, NOV 25 2017.
Citações Web of Science: 3
Resumo

Partial acylglycerols are relevant minor compounds in the oil/fat industry. They represent important role to the food industry, as surface-active agents and emulsifiers. Also, they are present in the biodiesel production and its separation steps. Therefore, knowledge of their thermophysical properties are critical to product and process design. Considering that, this study aims at determining by the DSC technique novel boiling point data for two monoacylglycerols, namely, monononanoin and monolaurin at subatmospheric pressures, and for four binary fatty mixtures at selected pressures (TPx data), i.e. lauric acid + monocaprylin (3.42 kPa), monononanoin + monolaurin (2.06 kPa), monononanoin + hexadecanol (2.02 kPa), and monolaurin + octadecanol (2.05 kPa). As expected, the system with two monoacylglycerols (monononanoin + monolaurin) showed an ideal behavior. On the other hand, the other systems presented non-ideal behavior. Experimental data were successfully regressed by the Wilson, the NRTL and the UNIQUAC models. Predictive capacity of the UNIFAC method and its different versions was tested, and results indicated that improvements concerning lipid systems are still necessary. These improvements must be based on diverse and qualified experimental data. (C) 2017 Elsevier B.V. All rights reserved. (AU)

Processo FAPESP: 16/18253-0 - Equilíbrio de fases nas tecnologias de lipídeos e de biocombustíveis
Beneficiário:Roberta Ceriani
Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular
Processo FAPESP: 13/12735-5 - Equilíbrio líquido-vapor e equilíbrio líquido-líquido na indústria de óleos, gorduras e biodiesel: dados experimentais, modelagem e simulação
Beneficiário:Roberta Ceriani
Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular