Compact apparatus for rapid measurement of high-pressure phase equilibria of carbon dioxide expanded liquids |
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| Authors: | Yoshiyuki Sato Naoki HosakaKota Yamamoto Hiroshi Inomata |
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| Institution: | Research Center of Supercritical Fluid Technology, Graduate School of Engineering, Tohoku University, Aoba 6-6-11-403, Aramaki, Aoba-ku, Sendai 980-8579, Japan |
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| Abstract: | A new apparatus based on a synthetic method was developed for phase equilibrium measurements. The characteristic features of the apparatus are its light weight (ca. 288 g), variable-volume with a free piston, position sensing device for the piston, precise pressure and temperature control, and a window for visual observation. The inner volume of the cell can vary from 2.5 to 8.8 cm3. The cell was constructed from titanium so that the composition of the sample can be determined by direct weighing of the cell. The apparatus was designed for temperatures up to 473 K and pressures up to 25 MPa. |
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| Keywords: | Bubble-point pressure Carbon dioxide Expanded liquid Ketones |
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