PREDICTION OF SOLID-LIQUID EQUILIBRIA FROM VAPOR-LIQUID EQUILIBRIUM DATA USING THE SOLUTION OF GROUPS MODEL

Abstract

A new algorithm, based on the solution of groups model, is proposed to predict liquid-phase activity coefficients. This method is not an extension of the so-called ASOG model but is rather a simple application of the solution of groups model. The molecular activity coefficients of solid-liquid equilibria were calculated directly from the correlated vapor-liquid equilibria of the other component pairs, which consisted of the same group as solid-liquid equilibria. This method was successfully used for predicting the solid-liquid equilibria of binary systems which included naphthalene as one component.