Journal of Chemical and Engineering Data, Vol.61, No.3, 1101-1108, 2016
Phase Behavior for the CO2 + Methyl Methoxyacetate and CO2 + Methyl trans-3-Methoxyacrylate Systems at Pressures from (5 to 20) MPa and Various Temperatures
Acetate and acrylate are compounds with weak polarity which show a nonideal behavior. Phase equilibria of these systems play a significant role as organic solvents in industrial processes. In this work, the solubility behavior for the (CO2 + methyl methoxyacetate) and (CO2 + methyl trans-3-methoxyacrylate) mixtures at pressures from (5 to 20) MPa and various temperatures (313.2, 333.2, 353.2, 373.2, and 393.2 K) are measured in the static method with a variable volume high pressure view cell. The experimental results obtained in this research are correlated with Peng-Robinson equation of state and van der Waals one-fluid mixing rule containing two adjustable interaction parameters. The critical constants for the Peng-Robinson equation of state were estimated using the group contributions method. The Lee-Kesler method was used to predict the acentric factor.