PHASE-EQUILIBRIUM OF ETHANOL PLUS CO2 AND ACETONE PLUS CO2 AT ELEVATED PRESSURES

Vapor-Liquid equilibria for two binary mixtures at elevated pressures were determined by a novel technique of density measurement. In this i nvestigation using two high-pressure densitometers, phase diagrams for carbon dioxide + ethanol and carbon dioxide + acetone mixtures were e stablished at five temperatures and pressures up to 14.39 MPa. Solubil ities of carbon dioxide in both ethanol and acetone were found to incr ease with applied pressure but decreased with increasing temperature. The solubility for carbon dioxide in acetone was found to be greater t han that of carbon dioxide in ethanol.