HIGH PRESSURE VAPOR-LIQUID EQUILIBRIA OF PALM FATTY ACIDS DISTILLATES-CARBON DIOXIDE SYSTEM

• Autor(es): MACHADO,Nélio T. ; BRUNNER,Gerd
• Data: 1997
• Origem: Oasisbr
• Assunto(s): High pressure vapor-liquid equilibrium; Experiment; Carbon dioxide; Fatty acids; Equation of state; Separation
• Tipo de Documento: Artigo científico
• Idioma: Inglês

Descrição

Vapor-Liquid equilibria of palm fatty acids distillates/carbon dioxide system has been investigated experimentally at temperatures of 333, 353, and 373 K and pressures of 20, 23, 26, and 29 MPa using the static method. Experimental data for the quasi-binary system palm fatty acids distillates/carbon dioxide has been correlated with Redlich-Kwong-Aspen equation of state. Modeling shows good agreement with experimental data. Selectivity obtained indicates that supercritical carbon dioxide is a reasonable solvent for separating saturated (palmitic acid) and unsaturated (oleic+linoleic acids) fatty acids from palm fatty acids distillates in a continuous multistage countercurrent column.