Pseudoternary liquid-liquid equilibria for refined sunflower seed oil plus carboxylic acids plus anhydrous ethanol at 298.15 K

Author(s)

May, Camila P. ; Homrich, Perci O. B. ; Ceriani, Roberta

• Document type: Journal article
• Source: Fluid Phase Equilibria; v. 427, p. 297-302, NOV 15 2016.
• Web of Science Citations: 4

Abstract

As well as deacidification (removal of long-chain fatty acids), the deodorization of vegetable oils (removal of odoriferous compounds) can be performed by liquid liquid extraction using an appropriate solvent. In this work, novel liquid-liquid equilibria (LLE) were measured for three pseudoternary systems containing [refined sunflower seed oil butyric or valeric or caprylic acid + anhydrous ethanol] at 298.15 K and under atmospheric pressure. The reliability of the LLE data in terms of mass balances was confirmed following procedures established in the literature. The NonRandom Two-Liquid (NRTL) model was used for correlating experimental data. Efficiency of anhydrous ethanol to extract short-chain carboxylic acids (off-flavors) was assessed by distribution coefficients and solvent selectivities. (C) 2016 Elsevier B.V. All rights reserved. (AU)

• FAPESP's process: 13/11868-1 - Liquid liquid equilibrium of model systems containing vegetable oil + aldehyde + anhydrous ethanol at 25 ºC
• Grantee: Perci Odilon Bonetti Homrich
• Support Opportunities: Scholarships in Brazil - Master
• 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