Abstract
Gas-phase densities of the system carbon dioxide+ethane were measured with a Burnett apparatus at 320 K and at pressures up to approximately 10 MPa. Measurements were made on systems having carbon dioxide mole fractions of 0, 0.25166, 0.49245, 0.73978, and 1. Second and third virial coefficients were determined for each composition, and the cross virial coefficients were calculated. Comparisons were made with other recent high-quality measurements on this system. For each mixture compositionPρT measurements were made on five isochores having densities within ±30% of the critical density. Temperatures varied from 288 to 320 K. The two-phase boundary was determined and estimates are given forT c andP c for each composition.
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Weber, L.A. Measurements of the virial coefficients and equation of state of the carbon dioxide+ethane system in the supercritical region. Int J Thermophys 13, 1011–1032 (1992). https://doi.org/10.1007/BF01141212
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DOI: https://doi.org/10.1007/BF01141212