Second and third virial coefficients for methane + ethane and methane + ethane + carbon dioxide at (300 and 320) K

Journal Article · Fri Mar 01 04:00:00 EST 1996 · Journal of Chemical and Engineering Data

DOI:https://doi.org/10.1021/je9502307· OSTI ID:228038

Hou, H; Holste, J C; Hall, K R; Marsh, K N; Gammon, B E ^[1]

---

1. Texas A and M Univ., College Station, TX (United States)

Measurements of pVT made using the Burnett technique at (300 and 320) K are reported for methane, ethane, three x{sub 1} methane + (1 {minus} x{sub 1}) ethane mixtures with x{sub 1} = 0.30623, 0.49971, and 0.70090, and two x{sub 1} methane + x{sub 2} ethane + (1 {minus} x{sub 1} {minus} x{sub 2}) carbon dioxide mixtures with x{sub 1} = 0.32125, x{sub 2} = 0.34099 and x{sub 1} = 0.24759, x{sub 2} = 0.56013. Second virial coefficients have been calculated from these results for the pure fluids, and the binary and ternary mixtures. Cross second and third virial coefficients have been derived, including the cross third virial coefficient which describes the simultaneous unlike interaction between methane, ethane, and carbon dioxide. The experimental results were used to test an approximation to the virial equation which greatly simplifies calculations for multicomponent mixtures and which requires only experimental virial coefficients for binary mixtures. Values calculated using the model agree with experimental values within the estimated uncertainties. The results are compared with literature values, where available.

• OSTI ID: 228038
• Journal Information: Journal of Chemical and Engineering Data, Journal Name: Journal of Chemical and Engineering Data Journal Issue: 2 Vol. 41; ISSN 0021-9568; ISSN JCEAAX
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
CARBON DIOXIDE
MATHEMATICAL MODELS
METHANE
NATURAL GAS
REMOVAL
SEPARATION PROCESSES
THERMODYNAMIC PROPERTIES
VALIDATION