Measurements of the virial coefficients and equation of state of the carbon dioxide + ethane system in the supercritical region

Journal Article · Wed Jan 01 04:00:00 EST 1992 · International Journal of Thermophysics; (United States)

DOI:https://doi.org/10.1007/BF01141212· OSTI ID:7009412

Weber, L A ^[1]

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1. National Institute of Standards and Technology, Gaithersburg, MD (United States)

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 O, 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 composition P[rho]T measurements were made on five isochores having densities within [plus minus]30% of the critical density. Temperatures varied from 288 to 320K. The two-phase boundary was determined and estimates are given for T[sub c] and P[sub c] for each composition. 25 refs., 6 figs., 5 tabs.

• OSTI ID: 7009412
• Journal Information: International Journal of Thermophysics; (United States), Journal Name: International Journal of Thermophysics; (United States) Vol. 13:6; ISSN 0195-928X; ISSN IJTHDY
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
03 NATURAL GAS
033000* -- Natural Gas-- Properties & Composition
36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
ALKANES
BINARY MIXTURES
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL ANALYSIS
DENSITY
DISPERSIONS
EQUATIONS
EQUATIONS OF STATE
ETHANE
HYDROCARBONS
MEDIUM PRESSURE
MIXTURES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TEMPERATURE RANGE
TEMPERATURE RANGE 0273-0400 K