Abstract
In the present work the supercritical fluids argon, methane, nitrogen, carbon dioxide, ethane, ethylene and propane were picked out as examples, and the results of analysis concerning the adsorption of these fluids at activated carbon Norit R1 (Norit Company, Germany) and SCS-3 (ISPE, Kiev) at different temperatures up to a pressure of 50 MPa are presented and discussed in this paper. The principle of working of the measuring device is described in this context as well.
A three-parameter isothermal equation is used to represent the adsorption equilibrium. The isothermal equation is based on a physical model concept which has already been used for the modelling of adsorption processes with a pressure up to 15 MPa.
Similar content being viewed by others
References
P. Harting, J. Germanus and S. Beutekamp, Fortschrittberichte VDI, Reihe 3 Verfahrenstechnik, 554, pp. 147–161.
M. Salem, 'Thermodynamik der Hochdruckadsorption einfacher Gase an porösen Adsorbenzien', Dissertation, University of Leipzig, 1997.
A. V. Neimark and P. I. Ravikovich, Langmuir, 13 (1997) 5148.
R. Staudt, S. Bohn, F. Dreisbach and J. U. Keller, 'Gravimetric and volumetric measurements of helium adsorption equilibria on different porous solids', Characterisation of Porous Solids IV, pp. 261.
P. Malbrunot, D. Vidal, J. Vermesse, R. Chahine and T. K. Bose, Langmuir, 13 (1997) 539.
I. Vazquez, M. P. Russell, D. R. Smith and R. Radebaugh, Advances in Cryogenic Engineering, 33 (1987) 1013.
S. Sircar, 'On the Measurements of Gibbsian Surface Excess', 1999 Air Products and Chemicals, Inc.
P. Malbrunot, D. Vidal, J. Vermesse, R. Chahine and T. K. Bose, Langmuir, 8 (1992) 577.
A. Herbst and P. Harting, in print by Adsorption, 2002.
R. Staudt, G. Saller, M. Tomalla and J. U. Keller, Ber. Bunsenges. Phys. Chem. Bd., 97 (1993) 98.
O. Talu, Adv. Coll. Int. Sci., 76-77 (1998) 227.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Herbst, A., Staudt, R. & Harting, P. The magnetic suspension balance in high pressure measurements of pure gases. Journal of Thermal Analysis and Calorimetry 71, 125–135 (2003). https://doi.org/10.1023/A:1022218301419
Issue Date:
DOI: https://doi.org/10.1023/A:1022218301419