Phase equilibria for the 2-ethoxyethyl acetate and 2-(2-ethoxyethoxy)ethyl acetate in supercritical CO2 at various temperatures and pressures up to 20 MPa |
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| Affiliation: | 1. Chemical Engineering Laboratory, Hosei University, 3-7-2 Kajino-cho, Koganei-city, Tokyo 184-8584, Japan;2. Institute for Sustainability Research and Education, Hosei University, 2-17-1 Fujimi, Chiyoda-ku, Tokyo 102-8160, Japan;3. Department of Chemical Biology and Applied Chemistry, College of Engineering, Nihon University, Nakagawara-1, Tamuramachi, Tokusada, Koriyamashi, Fukushima 963-864, Japan;1. Refractories, Ceramics and Building Materials Dept., National Research Centre, 12311 Cairo, Egypt;2. Chemistry Department, Faculty of Science, Fayoum University, El-Fayoum, Egypt |
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| Abstract: | The (CO2 + 2-ethoxyethyl acetate) and (CO2 + 2-(2-ethoxyethoxy)ethyl acetate) systems at 313.2, 333.2, 353.2, 373.2 and 393.2 K as well as pressures up to 20.59 MPa have been investigated using variable-volume high pressure view cell by static-type. The solubility curve of 2-ethoxyethyl acetate and 2-(2-ethoxyethoxy)ethyl acetate in the (CO2 + 2-ethoxyethyl acetate) and (CO2 + 2-(2-ethoxyethoxy)ethyl acetate) systems increases as the temperature increases at a constant pressure. The (CO2 + 2-ethoxyethyl acetate) and (CO2 + 2-(2-ethoxyethoxy)ethyl acetate) systems exhibit type-I phase behavior. The experimental results for the (CO2 + 2-ethoxyethyl acetate) and (CO2 + 2-(2-ethoxyethoxy)ethyl acetate) systems correlate with the Peng–Robinson equation of state using a van der Waals one-fluid mixing rule including two adjustable parameters. The critical properties of 2-ethoxyethyl acetate and 2-(2-ethoxyethoxy)ethyl acetate are predicted with the Joback–Lyderson group contribution and Lee–Kesler method. |
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| Keywords: | 2-Ethoxyethyl acetate 2-(2-Ethoxyethoxy)ethyl acetate High pressure phase behavior Peng–Robinson EOS |
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