Mass transfer in the two phase flow including super-critical, sub-critical or liquefied carbon dioxide as the dispersed phase

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Liquid phase viscosity for the system, sub-critical carbon dioxide and water was observed using the rotating cylinder-type device. The liquid phase viscosity increased with pressure up to 5 MPa., showing 30% higher value than water.Equilibrium concentrations for the system, super-critical, sub-critical or liquefied carbon dioxide and aqueous tri-chloro ethylene solution were determined using a circulation type equilibrium equipment. The observed equilibrium concentrations were correlated by the equation of state of Pate-Teja and by the mixing rule of Wilson.Volumetric mass transfer coefficient was determined under semi-batch and continuous operation and correlated as a function of superficial velocity of the dispersed phase, pressurized carbon dioxide.New method for recovering VOC from polluted ground water and concentration of the recovered VOC was proposed based on the pressure dependency of the distribution coefficient of VOC into the high pressure carbon dioxide.