APPLICATION OF SINGLE PELLET REACTOR FOR DIRECT MASS TRANSFER STUDIES .I. MASS TRANSFER IN POROUS MEDIA

The mass transfer behavior of a binary gas system in an alumina-supported platinum catalyst is destermined from experimental studies interpreted in terms of the dusty gas" model. The effective Knudsen diffusivities and an effective D'Arcy flow parameter are calculated from permeability measurements. The effective molecular diffusivity is calculated from a single counterdiffusion measurement. The results indicate that the diffusive behavior of the catalyst lies within the so-called intermediate region. © 1968."