High pressure phase equilibrium properties for ethane+1-butanol system at 313.15 K |
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| Affiliation: | 1. Department of Chemistry, Faculty of Science, Saitama University, Saitama 338-8570, Japan;2. Department of Physics, Indian Institute of Technology Bombay, Powai, Mumbai 400 076, India;1. Universität Potsdam, Karl-Liebknecht-Str., Potsdam-Golm, 24/25, 14476, Germany;2. Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße, Berlin, 15, D-12489, Germany |
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| Abstract: | Phase equilibria and saturated densities for ethane+1-butanol system at high pressures were measured using a static-circulation apparatus at 313.15 K. The experimental apparatus equipped with three Anton Paar DMA 512S vibrating tube density meters was previously developed for measuring vapor–liquid–liquid equilibrium (VLLE) at high pressures. Co-existing phase composition and saturated density of each phase can be measured by means of the apparatus with a maximum temperature and pressure of 400 K and 20 MPa, respectively. The present experimental results include vapor–liquid equilibria (VLE), liquid–liquid equilibria (LLE), and VLLE. The equilibrium composition and density of each phase were determined by gas chromatography and density measurements, respectively. The experimental data were correlated with various equations of state. |
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