Abstract
This work describes a novel method that enables the calculation of a series of adsorption isotherms basically from a single Temperature-Programmed Desorption (TPD) experiment. The basic idea is to saturate an adsorbent packed in a fixed bed at a certain feed concentration and temperature and subsequently to increase its temperature linearly with time, while maintaining a constant feed concentration.
We measured TPD response curves for carbon dioxide on activated carbon at different heating rates for various combinations of feed concentration, molar flow rate and particle size. Response curves were fitted through an axially dispersed plug flow model by adjustment of the Langmuir parameters. Adsorption isotherms calculated with these fitted parameters are in good agreement with adsorption data obtained by other methods over the full temperature range.
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© 1996 Kluwer Academic Publishers
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Foeth, F., van der Vaart, R., Bosch, H., Reith, T. (1996). Isotherms from Temperature-Programmed Desorption Experiments. In: LeVan, M.D. (eds) Fundamentals of Adsorption. The Kluwer International Series in Engineering and Computer Science, vol 356. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-1375-5_35
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DOI: https://doi.org/10.1007/978-1-4613-1375-5_35
Publisher Name: Springer, Boston, MA
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