The effect of carbon dioxide density on the solubility of palm fatty acid distillates in the gaseous phase is illustrated in Fig. 3. The solubility of palm fatty acid distillate in the gaseous phase increases with density. The solvent power of supercritical fluids is enhancedas itsdensity increases.Vapor–liquidequilibriumdata for the pseudo-binary system palm fatty acid distillate + CO2 reported by Stoldt [7] agree well with the values obtained in this work for both gas and liquid phases, if one takes into accountthe uncertainty of the measurements (≈5%). The solubility of multi-component mixtures in the gaseous phase gives information about the amount of solvent, and the mechanical energy requirements to recycle this amount of solvent, necessary to achieve a desired separation task in countercurrent gas extraction