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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

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

Full text
Author(s):
Damaceno, Daniela S. [1] ; Ceriani, Roberta [1]
Total Authors: 2
Affiliation:
[1] Univ Estadual Campinas, Fac Chem Engn, Av Albert Einstein 500, BR-13083852 Campinas, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: Fluid Phase Equilibria; v. 452, p. 135-142, NOV 25 2017.
Web of Science Citations: 3
Abstract

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)

FAPESP's process: 16/18253-0 - Phase equilibria in lipid and biofuel technologies
Grantee:Roberta Ceriani
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 13/12735-5 - Vapor liquid equilibria and liquid liquid equilibria in the oil/fat and biodiesel industries: experimental data, modelling and simulation
Grantee:Roberta Ceriani
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants