Thermodynamic modeling of solubilities of various solid compounds in supercritical carbon dioxide: Effects of equations of state and mixing rules

▶ A simple thermodynamic model based on cubic equations of state was presented in order to calculate the solubilities of solid compounds in supercritical carbon dioxide. ▶ The effect of pressure is considered by using a proper alpha function in the ER EoS. ▶ The effects of intermolecular interactions is taken into account by applying the Wong-Sandler mixing rule. ▶ It was observed that the combination of the ER EoS and WS mixing rule leads to less average absolute deviations (9.0%) compared with the other investigated combinations. ▶ The presented model can be easily joined with simulation softwares.