HEGEL Pablo Ezequiel
congresos y reuniones científicas
High pressure phase equilibria of supercritical alcohols with triglycerides, fatty esters and cosolvents
PABLO HEGEL; ALFONSINA ANDREATTA; SELVA PEREDA; SUSANA BOTTINI; E.A.BRIGNOLE
Hersonissos, Crete, Greece
Congreso; Eleventh International Conference on Properties and Phase Equilibria (PPEPPD 2007); 2007
National Technical University, Athens, Greece.
The transesterification of vegetable oils, esterification of fatty acids and glycerolisis reactions, with supercritical alcohols, are of interest in the production of specialty chemicals and biodiesel. The partial miscibility between the reactants and products of these processes have raised interest in the multiple phase behavior under reaction and separation conditions of mixtures of triglycerides and derivatives, fatty esters, alcohols and glycerin. In the present work, recent experimental studies under separation and reaction conditions are compared with modeling predictions using a group contribution with association equation of state.