Correlation of the Binary Interaction Factor for Polar Solutes Dissolved in Supercritical Carbon Dioxide

Authors : Aimen Issaoui, Ali Ben Moussa, Hatem Hatem Ksibi

Pages : 37-42

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Publication Date : 2011-02-02

Article Type : Other

Abstract :This contribution is focused on supercritical solutions of many polar solutes in carbon dioxide (nonpolar solvent) when the molar polarization of the solute at infinite dilution is accurately known. A database containing experimental solubility measurements for many solutes is used in this study where isotherms are known between 308 and 343 K. A mathematical model is developed to compute the solubility of solids in supercritical fluids, particularly in carbon dioxide. As a result, a new correlation of the binary interaction (k ij ) is proposed. This new relationship considers the k ij term as a function of the dipole moment and the solute carbon number.
Keywords : Solubility, supercritical fluid, binary interaction, optimization, dipole moment