Vapor-liquid equilibrium (VLE) and molar volume data were measured for the binary system CO2 + soysolv at 298.15, 313.15, 323.15, 333.15, and 343.15 K, and the ternary system CO2 + soysolv + quaternary ammonium chloride surfactant at 298.15, 313.15, and 333.15 K, where the composition of soysolv to the surfactant is 99 wt% and 20 wt% on a CO2 – free basis. Data were collected stoichiometrically using a high-pressure Pyrex glass cell, where no sampling or chromatographic equipment is required. The accuracy of the experimental set up is tested with vapor-liquid equilibrium measurements for the system CO2 + nonadecane at 313.15 K. A pressure-decay technique is used to calculate the mass of CO2 loaded into the equilibrium section of the apparatus. The accuracy of the technique was verified with a blank nitrogen experiment. |
