Abstract
As a contribution to current projects on the thermophysical properties of ethylene for the preparation of reference tables, measured PVT data are presented. For the measurements in the single-phase region, two types of equipment have been employed: an expansion apparatus to determine isotherms and a constant volume apparatus to determine isochores. Both the design and calibration of each type of equipment and the experimental procedures are described. The accuracy of the 251 measured PVT data on 10 isotherms and 16 isochores, which cover the temperature range from −30 to 80‡C, with pressures up to 250 bar, is about 0.1% in the compressibility factors. The critical temperature was determined with the result t c =9.22±0.02‡C by visual observation of the disappearance of the meniscus.
Similar content being viewed by others
References
W. Thomas and M. Zander, Thermische ZustandsgröΒen von Äthylen. Z. angew. Phys. 20:417 (1966).
W. Thomas, M. Zander, G. Quietzsch, and H. Schuchmann, Dichte des Äthylens im Einphasengebiet für Temperaturen von −30‡C bis 75‡C bei Drücken bis zu 100 bar. Farbwerke Hoechst AG, Frankfurt (M), Federal Republic of Germany (1972).
W. Thomas, M. Zander, G. Quietzsch, and H. Hartmann, Dichte des Äthylens für Temperaturen von −30‡C bis 80‡C bei Drücken bis zu 100 bar. Hoechst AG, Frankfurt (M), Zweite erweiterte Auflage (1976).
E. S. Burnett, Compressibility determinations without volume measurements. J. Appl. Mech., 3:A-136 (1936).
A. Michels, C. Michels, and H. Wouters, Isotherms of CO2 between 70 and 3000 atmospheres. Proc. Roy. Soc. London, Ser. A, 153:201 (1935).
S. Angus, B. Armstrong, K. M. DeReuck, W. Featherstone, and M. R. Gibson, International Thermodynamic Tables of the Fluid State, Ethylene, 1972 (Butterworths, London, 1974), p. 2.
M. R. Moldover, Visual observations of the critical temperature and density: CO2 and C2H4. J. Chem. Phys. 61:1766 (1974).
A. Michels, and M. Geldermans, Isotherms of ethylene up to 3000 atmospheres between 0‡C and 150‡C. Physica 9:967 (1942).
A. Michels, M. Geldermans, and S. R. deGroot, Thermodynamical properties of ethylene under pressures up to 3000 atmospheres and temperatures between 0‡C and 150‡C, tabulated as functions of density. Physica 12:105 (1946).
N. J. Trappeniers, T. Wassenaar, and G. J. Wolkers, Isotherms and thermodynamic properties of ethylene at temperatures between 0 and 150‡C and at densities up to 500 amagat. Physica 82A:305 (1976).
D. R. Douslin, and R. H. Harrison, Pressure, volume, temperature relations of ethylene. J. Chem. Thermodyn. 8:301 (1976).
M. Waxman, and H. A. Davis, Equations of State in Engineering and Research, Adv. in Chem. Series 182, K. C. Chao and R. L. Robinson, Jr., ed. (Am. Chem. Soc., Washington, 1979), p. 285.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Thomas, W., Zander, M. Pressure-density-temperature measurements of ethylene. Int J Thermophys 1, 383–396 (1980). https://doi.org/10.1007/BF00516565
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00516565