Vapor-Liquid Equilibria of CO2 + 1-Octene + Polyethylene Glycol Systems

The vapor−liquid equilibria for CO2 + 1-octene + polyethylene glycol (PEG) were determined at 308.15 K, 318.15 K, and 328.15 K at pressures up to 10 MPa, and the average molecular weights of PEGs were 200, 400, and 600, respectively. It was shown that CO2 could considerably enhance the dissolution of 1-octene in PEGs under suitable conditions.