Abstract

Solid–fluid equilibria are important for supercritical fluid processing design. Few data are available, and predictions require a model for the solute–solvent interactions. An activity coefficient model for solids in supercritical CO 2, based on linear solvation energy relationships, is developed. The model fits solubility data at liquid-like densities to an average error of 65%. Extrapolations to gas-like densities are shown.

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