Equilibrium Phase Densities, Vapor Phase Compositions, and Interfacial Tensions for the Methane + Ethane + n-Pentane System at 294.15 K

The equilibrium phase densities, vapor phase compositions, and interfacial tensions of the ternary mixture (methane + ethane + n-pentane) have been measured simultaneously using the pendant drop technique at 294.15 K. The total mole compositions of the measured ternary mixtures are 50.61 % methane +...

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Bibliographic Details
Published in:Journal of chemical and engineering data 2011-11, Vol.56 (11), p.4006-4011
Main Authors: Nilssen, Hui N, Fredheim, Arne O, Berg, Ole J, Solbraa, Even, Kvamme, Bjørn
Format: Article
Language:English
Subjects:
Chemistry
Exact sciences and technology
General and physical chemistry
Phase equilibria
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Summary:The equilibrium phase densities, vapor phase compositions, and interfacial tensions of the ternary mixture (methane + ethane + n-pentane) have been measured simultaneously using the pendant drop technique at 294.15 K. The total mole compositions of the measured ternary mixtures are 50.61 % methane + 8.93 % ethane + 40.46 % n-pentane; 34.20 % methane + 6.04 % ethane + 59.76 % n-pentane; and 17.46 % methane + 3.08 % ethane + 79.40 % n-pentane, respectively. The measured phase densities and vapor phase compositions are compared with calculated equilibrium properties from the GERG2004 equation. No open interfacial tension data for these ternary systems have been reported at any isothermal conditions. The average experimental interfacial tension data can be described with the total deviations of about 3.2 %. The combined standard uncertainty at each experimental condition is calculated on the basis of ISO recommendations.
ISSN:0021-9568
1520-5134
DOI:10.1021/je200316w