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Transient diffusion in solids with a bipore distribution
Author(s) -
Ma Y. H.,
Lee T. Y.
Publication year - 1976
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690220118
Subject(s) - pellets , transient (computer programming) , diffusion , butane , thermodynamics , activation energy , volume (thermodynamics) , chemistry , materials science , analytical chemistry (journal) , chromatography , organic chemistry , physics , composite material , catalysis , computer science , operating system
Transient diffusion of n ‐butane, iso‐butane, and 1‐butene in synthetic CaX(Na) spherical pellets is studied in a constant volume, well‐stirred system. The intracrystalline diffusion coefficients are in the order of 10 −14 cm 2 /s, and the activation energy is about 7.0 Kcal/g‐mole. Experimental data agree well with a mathematical model developed to describe transient diffusion.