&strati-The time-on-stream theory of catalyst decay developed by Wojciechowski is used to describe the hehaviour of a diffusion-limited aging catalyst under the assumption that the intraparticle diffusion can affect only catalytic reactions. It is shown that the presence of internal mass transport d
Influence of intraparticle reaction–diffusion in a catalytic reactor
✍ Scribed by J Wärnå; M.R Rönnholm; T Salmi; K Keikko
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 125 KB
- Volume
- 90
- Category
- Article
- ISSN
- 1385-8947
No coin nor oath required. For personal study only.
✦ Synopsis
A mathematical model was developed for a catalytic, batch-wise operating basket reactor used for liquid-phase systems. This kind of reactor is frequently used to study the reaction kinetics and diffusion effects in porous catalyst particles. The model comprises dynamic mass balances for the catalyst particles and the turbulent liquid phase surrounding the particles. Simultaneous reaction and diffusion in particles is handled by the model, which was successfully applied to describe the kinetic and mass transfer effects in a complex organic reaction system, which is relevant for catalytic recovery of anthraquinones. The model predicted the reactor performance for different catalyst particle diameters, which is relevant for a successful process scale up.
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