Measurement and Correlation of Solubility for Propylene in 2-Propanol-Water Solutions

In order to obtain the solubility data of propylene in 2-propanol-water solutions, gas-liquid equilibrium (GLE) experiments were carried out at 303.15-333.15 K, 0.27-0.98 MPa in a static equilibrium still. The original mass ratio of 2-propanol to water was 9∶1,8∶2,7∶3,1∶0, respectively. The equilibrium data were correlated with an empirical model and the regression of model parameters was completed by Gauss-Newton nonlinear least square (NLS). The average relative deviation (ARD) between the experimental and calculated value is 1.5700, and the maximum relative deviation (MRD) is 4.8200. In addition, a simple approach that correlated the model parameters with the system composition was also provided.