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Modeling of Adsorption Isotherms for Supercritical Hydrogen on A and X Zeolite

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Abstract:

we give the analytic solution of Ono-Kondo equation based on lattice theory to describe the supercritical high-pressure hydrogen adsorption inside cylindric pores of adsorbents, and predict adsorption isotherms for hydrogen on A and X type zeolite at 77K. It is shown that the model reflects the peculiar features in adsorption isotherms of supercritical hydrogen in particular, a maximum in the adsorption with increasing pressure) .The results from prediction are compared with the experimental data. It shows that the model can elucidate the peculiar features in adsorption isotherms of supercritical hydrogen which are fundamentally different from those of standard (IUPAC) classification, and the results from the equation also qualitatively reflect the experimental results.

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Periodical:

Advanced Materials Research (Volume 487)

Pages:

719-723

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.487.719

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Online since:

March 2012

Authors:

Xiao Ming Du

Keywords:

Gibbs Adsorption, Hydrogen Adsorption, Supercritical Condition, Zeolite

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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