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>Study of ldquo;Nonhyphen;Fickianrdquo; Diffusion Anomalies through Time Lags. III. Simple Distancehyphen;Dependent Anomalies in Microporous Media
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Study of ldquo;Nonhyphen;Fickianrdquo; Diffusion Anomalies through Time Lags. III. Simple Distancehyphen;Dependent Anomalies in Microporous Media
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机译：Study of ldquo;Nonhyphen;Fickianrdquo; Diffusion Anomalies through Time Lags. III. Simple Distancehyphen;Dependent Anomalies in Microporous Media
The timehyphen;lag treatment developed in Paper II is here applied to a microporous medium with porosity varying with position in the direction of flow. It is assumed that diffusion in such a medium can occur in both pore and adsorbed phases without sensible disturbance of the adsorption equilibrium and that the relevant diffusion and distribution coefficients are constant. The case of gaseous Knudsen diffusion through microporous powder compacts formed by uniaxial compression is then considered in some detail. It is found that the timehyphen;lag anomalies, which characterize many experimental systems of this kind, can plausibly be ascribed in large part to distancehyphen;dependent ldquo;nonhyphen;Fickianrdquo; diffusion behavior and interpreted qualitatively or semiquantitatively in terms of the present treatment.
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