| 초록 |
High pressure phase behavior of the iso-butyl acrylate and iso-butyl methacrylate with supercritical carbon dioxide has been stuied. Pressure-composition isotherms are obtained for binary mixtures of carbon dioxide + iso-butyl acrylate system at 40, 60, 80, 100 and 120℃ and pressures to 150 bar and for of carbon dioxide + iso-butyl methacrylate pressure up to 160 bar. The solubility of iso-butyl acrylate and iso-butyl methacrylate for the carbon dioxide + iso-butyl acrylate and carbon dioxide + iso-butyl methacrylate systems increases as the temperatures increases at constant pressure. The carbon dioxide + iso-butyl acrylate and carbon dioxide + iso-butyl methacrylate system exhibits type-I phase behavior, characterized by a continuous critical line from pure carbon dioxide the second component with a maximum in pressure. The experimental results for the the carbon dioxide + iso-butyl acrylate and carbon dioxide + iso-butyl methacrylate systems have been modeling the Peng-Robinson equation of state. |
