First-order isothermal reaction in a spherical catalyst

First-order isothermal reaction in a spherical catalyst Consider a simple first-order reaction  

A — Prodncts With a first-order rate expression given by 

Number Structure Estimated Equation Main Input Data 

1 Bulk diffusion (independent of pore structure) Bulk diffusivity D, (cmVs) n 3.0 X 10-T ( 1 1 V [m, /wJ Molecular weights temperature, and molar volumes V  

2 Bulk diffusion in a porous pellet Effective bulk diffusivity ebA OebU — Tortuosity factor t, pellet porosity / . 

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