APPLICATION OF THE LCVM MODEL TO SYSTEMS CONTAINING ORGANIC-COMPOUNDSAND SUPERCRITICAL CARBON-DIOXIDE

A recently developed equation of state-excess Gibbs free energy (EOS/G (E)) model with the LCVM (linear combination of Vidal and Michelsen) m ixing rule, capable of successful VLE prediction in asymmetric systems is applied to the prediction of solubilities of alkenes, ethers, acid s, alcohols, and esters in supercritical carbon dioxide. Considering t he experimental uncertainties, excellent correlation of binary data an d satisfactory prediction of ternary and multicomponent equilibria are obtained in most cases over a wide range of temperature, pressure, an d system asymmetry. These promising results render the LCVM model a us eful tool for the preliminary design of processes involving mixtures w ith organic compounds and supercritical carbon dioxide.