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Carbon‐supported platinum metal catalysts for hydrogenation reactions. Mass transport effects in liquid phase hydrogenation over Pd/C

1972; Wiley; Volume: 22; Issue: 6 Linguagem: Inglês

10.1002/jctb.2720220616

0375-9210

G. J. K. Acres, Barry Cooper,

Nanomaterials for catalytic reactions

Abstract The efficient use of palladium charcoal catalysts in liquid phase hydrogenation processes is shown to depend on hydrogen transport limitations from the bulk liquid phase to catalyst particles, and on the diffusion of hydrogen through the porous structure of the support to the active metal crystallites. These processes impose a strict limitation on the maximum rate of hydrogenation, and can effect the selectivity of reaction processes. The factors which control the output of a reactor in terms of operating conditions, and catalyst design are examined.