An automated apparatus for equilibrium phase compositions, densities, and interfacial tensions: data for carbon dioxide plus decane

An existing vapor-liquid equilibrium facility has been automated to measure simultaneously liquid and vapor equilibrium phase compositions, phase dens ities, and interfacial tensions. Experimental measurements have been made f or CO2 + decane at 344.3 K. The newly acquired data were compared with thos e of five other sources. Excellent agreement was observed for the phase den sities of this work and those of Nagarajan et al. Reasonable agreement exis ts for all liquid phase compositions (within 0.005 mole fraction CO2) excep t for those of Chou et al. Vapor phase compositions of all data sets agree to within 0.005 mole fraction CO2. These data extend the range of previous data collected at Oklahoma State Un iversity and demonstrate the viability of new computer automation systems a nd of a new digitized imaging procedure for measurement of interfacial tens ions. (C) 2001 Elsevier Science B.V. All rights reserved.