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摘要
High-pressure liquid vapor phase equilibrium data (P-T-x-y) for the binary mixture of the ester diethyl fumarate with CO2 have been measured at temperatures of (373.2, 398.2, 423.2, and 453.2) K over the pressure range from (2.5 to 23) MPa using a static-analytic method. The results show that the molar fraction of CO2 in the liquid phase increases with increasing pressure at the studied temperatures and decreases with increasing temperature at constant pressure, while the composition of the light phase remains more or less unchanged. The experimental results were correlated using the Peng-Robinson equation of state in combination with one fluid mixing rule with two adjustable parameters, and the binary interaction parameters were calculated as functions of temperature. Overall, the absolute average relative deviations of the model from the data obtained for the light and heavy phases ranged from (8 to 10) % and (4 to 12) %, respectively.
- 出版日期2014-5
