The sorption of p-xylene in ZSM-5

Sorption/desorption isotherms of p-xylene on HZSM-5 (Si/Al = 132) have been measured using a gravimetric balance (Cahn 2000). A hysteresis loop was observed for sorbate loadings greater than 4 molecules per u.c. The isosteric heat of adsorption was ~ 80 kJ mol −1, and the differential molar entropy...

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Bibliographic Details
Published in:Zeolites 1988, Vol.8 (1), p.35-39
Main Authors: Richards, Robin E., Rees, Lovat V.C.
Format: Article
Language:English
Subjects:
Chemistry
diffusion
Exact sciences and technology
General and physical chemistry
p-xylene
Solid-gas interface
sorption
Surface physical chemistry
ZSM-5
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Summary:Sorption/desorption isotherms of p-xylene on HZSM-5 (Si/Al = 132) have been measured using a gravimetric balance (Cahn 2000). A hysteresis loop was observed for sorbate loadings greater than 4 molecules per u.c. The isosteric heat of adsorption was ~ 80 kJ mol −1, and the differential molar entropy of adsorption indicated an increase in ordering of the sorbed phase with increasing coverage.
ISSN:0144-2449
1873-3115
DOI:10.1016/S0144-2449(88)80027-7