Machado, N.T. Brunner, G. Separation of saturated and unsaturated fatty acids from palm fatty acids distillates in continuous multistage countercurrent columns with supercritical carbon dioxide as solvent: a process design methodology Subjects--Topical Terms: Oleo VegetalPalmeira OleaginosaAcido GraxoDioxido de CarbonoExtracao SupercriticaModelo Matematico