Journal article
Models for pore diffusion in porous catalysts
Four different pore diffusion models are fitted to isobaric counter-diffusion fluxes measured in technical catalysts by a Wicke-Kallenbach cell over a 30-fold pressure range with different gas pairs. The models differ significantly with respect to predictive capabilities and computational requirements.
Of the models studied, only the cross-linked pore model (Johnson and Stewart, 1965; Feng and Stewart, 1973), can predict diffusion fluxes reliably solely from pore size distribution. The study emphasizes the versatility and accuracy of the cross-linked pore model.
Language: | English |
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Year: | 1998 |
Pages: | 2941-2948 |
ISSN: | 18734405 and 00092509 |
Types: | Journal article |
DOI: | 10.1016/S0009-2509(98)00108-0 |