| Issue |
Korean Journal of Chemical Engineering,
Vol.29, No.10, 1418-1425, 2012
Vol.29, No.10, 1418-1425, 2012
Measurement and correlation of the isothermal vapor-liquid equilibrium data for carbon dioxide and dimethyl ether system
Vapor-liquid equilibrium (VLE) data for the binary system of carbon dioxide (CO2)+dimethyl ether (DME) were measured at six equally spaced (10 K) temperatures between 283.15 and 333.15 K. The data in the two-phase region were measured by using a circulation-type equilibrium apparatus in which both vapor and liquid phases are continuously recirculated. The equilibrium compositions of vapor and liquid phases and pressure were reported at each temperature. The experimental VLE data were correlated with PR-EoS using the Wong-Sandler (W-S) mixing rule
and the universal mixing rule (UMR). The overall average values of AAD-P (%) and AAD-y through the temperature range from 283.15 to 333.15 K were 1.0% and 0.012 for the W-S mixing rule and 0.88% and 0.014 for the UMR, respectively. All values are small and acceptable. Calculated results with these equations have given satisfactory results compared with the experimental data.
Keywords:
Vapor-liquid Equilibrium; Carbon Dioxide; Dimethyl Ether; Peng-Robinson Equation of State; Wong-Sandler Mixing Rule
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