Phase behaviour and thermodynamic modelling for the system (grape seed oil plus carbon dioxide plus ethanol) at high pressures

Author(s)

Dalmolin, Irede ^[1] ; Rigo, Aline A. ^[2] ; Corazza, Marcos L. ^[3] ; Ndiaye, Papa M. ^[3] ; Meireles, M. Angela A. ^[1] ; Batista, Eduardo A. C. ^[1] ; Vladimir Oliveira, J. ^[4]

Affiliation

^[1] Univ Estadual Campinas, UNICAMP, Sch Food Engn, Dept Food Engn, BR-13083862 Campinas, SP - Brazil

^[2] Univ Reg Integrada Alto Uruguai & Missoes, Dept Food Engn, BR-99700000 Erechim, RS - Brazil

^[3] UFPR, Polytech Ctr, Dept Chem Engn, BR-82530990 Curitiba, Parana - Brazil

^[4] Univ Fed Santa Catarina, Dept Chem & Food Engn, BR-88040900 Florianopolis, SC - Brazil

• Document type: Journal article
• Source: JOURNAL OF CHEMICAL THERMODYNAMICS; v. 68, p. 71-74, JAN 2014.
• Web of Science Citations: 3

Abstract

This short communication reports phase equilibrium data (cloud points), employing the synthetic static method, for the system [grape seed oil (GSO) + carbon dioxide (CO2) + ethanol] up to T = 343.15 K and 22.53 MPa. Experimental results were modelled using the Peng-Robinson equation of state with the classical van der Waals quadratic mixing rule (PR-vdW2). It is shown that the thermodynamic model is able to represent satisfactorily the phase behaviour of the system investigated. (C0 2013 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 08/56258-8 - Phase equilibrium and purification processes in the production of biofuels and biocompounds
• Grantee: Antonio José de Almeida Meirelles
• Support Opportunities: Program for Research on Bioenergy (BIOEN) - Thematic Grants