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Diffusional mass transport of nonadsorbed gases within porous structures:I. Experimentation and correlation

Authors
Journal
Journal of Catalysis
0021-9517
Publisher
Elsevier
Publication Date
Volume
7
Issue
2
Identifiers
DOI: 10.1016/0021-9517(67)90057-7

Abstract

Abstract Counterdiffusion flux and flux ratio have been measured for the argon-helium system in four different, well-characterized porous structures. Pressures from 1 to 14.6 atm and temperatures from 0 ° to 69 °C were employed in the investigation. Care was taken to avoid the effects of extraneous factors in experimental work, and to ensure the absence of transport by surface diffusion. Variation of flux with pressure, temperature, and porosity is discussed with regard to the equations defining diffusion in transition range capillaries.

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