Question

5. A Cylindrical Core Catalyst A reaction is to be carried out on the surface of a solid, nonporous cylindrical catalyst (0T< KR) that is contained within a porous cylindrical shell (KR <r< R), as illustrated in the figure below. Heterogeneous reaction at rR A fluid stream of material A flows past the cylinder. The concentration of species A at r diffuses through the porous medium, with the flux given by R is cAo. Species rface (atr - KR) where DA (a constant) is the effective diffusivity. Species A then reacts heterogeneously at the catalyst su via the reaction A--> Products.

Answer 1

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dy OR otra DA CA DA

a+bc:ス do D斤

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