Volumetric properties of carbon dioxide+isopropyl ethanoate mixtures at 308.15 and 313.15K

Correlation of High Pressure Density Behaviors for Fluid Mixtures made of Carbon Dioxide with Solvent at 313.15 K

“…As the volume of cell is changed, the volumetric properties of the mixture can be measured at a fixed and known composition The reliability of the experimental procedures had been confirmed by the agreement between the synthetic bubble point pressure measurements with the present apparatus and the analytical vapor-liquid equilibrium measurements in the separate conventional apparatus [4,7]. The high pressure density behaviors for fluid mixtures made of carbon dioxide with methyl acetate, ethyl acetate, 2-propyl acetate, methanol, 1-propanol, or 2-propanol at 313.15 K were measured by the authors [1][2][3][4][5][6]. For carbon dioxide+ethyl acetate, the density data reported by Smith et al [8] deviated 0.8 kg m -3 from the experimental ones reported by the authors [2].…”

“…The apparatus was described previously [1][2][3][4][5][6]. The maximum operating temperature and pressure of the apparatus are 400 K and 20 MPa, respectively.…”

“…The volume of the lower portion of the cell could be varied between 234 and 299 cm 3 by moving a piston, which gave a volume uncertainty of ±0.01 cm 3 . First, the cell is evacuated and then filled with carbon dioxide.…”

“…The solvent is then charged into the cell with the syringe pump with an uncertainty ±0.01 cm 3 . After pressurizing the syringe pump, the solvent is injected into the cell as quickly as possible, to eliminate the dissolution effect of carbon dioxide into the solvent in the syringe pump.…”

“…Methyl acetate, ethyl acetate, 2-propyl acetate, methanol, 1-propanol, and 2-propanol are typical worthy solvents in chemical industry. The authors [1][2][3][4][5][6] therefore measured the high pressure density behaviors for fluid mixtures made of supercritical carbon dioxide with those solvents. In the previous studies, an equation for the correlation of density behaviors of fluid mixtures at high pressures was presented.…”