A comprehensive model for the adsorption of supercritical hydrogen on activated carbon

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Industrial and Engineering Chemistry Research

DOI:https://doi.org/10.1021/ie960275g· OSTI ID:404564

Zhou, L; Zhou, Y ^[1]

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1. Tianjin Univ. (China)

Utilizing Henry`s law constants as a scaling factor, a unique comprehensive adsorption curve was constructed for the experimental adsorption data of hydrogen on activated carbon over the temperature range of 77--298 K. This representation of the supercritical adsorption data is independent of temperature and can generate a reasonable value for saturated adsorption, therefore, it succeeded in avoiding the trouble of defining a fictitious quantity in applying the Dubinin-Astakhov equation under supercritical condition. A Freundlich-type equation and an exponential equation were proposed to model the comprehensive adsorption curve. The research interest on hydrogen adsorption was enhanced by clean vehicle programs of several countries. Hydrogen is the most clean fuel and is also regenerable. Cryoadsorption of hydrogen on superactivated carbon emerged as a promising technology for on-board storage.

• OSTI ID: 404564
• Journal Information: Industrial and Engineering Chemistry Research, Journal Name: Industrial and Engineering Chemistry Research Journal Issue: 11 Vol. 35; ISSN IECRED; ISSN 0888-5885
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
ACTIVATED CARBON
ADSORPTION ISOTHERMS
HYDROGEN STORAGE
MATHEMATICAL MODELS
SORPTIVE PROPERTIES
SUPERCRITICAL STATE
TEMPERATURE RANGE 0065-0273 K