Role of catalyst pellet activity distribution in catalyst poisoning
✍ Scribed by Alena Brunovská; Bibiána Remiarová; Pavol Pranda
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 965 KB
- Volume
- 108
- Category
- Article
- ISSN
- 0926-860X
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✦ Synopsis
The influence of the distribution of catalyst activity on the resistance against poisoning is studied. For a constant amount of catalyst the location and width of the active zone is analyzed experimentally. Several methods for pellet preparation are described. The results demonstrate that for a model experimental system the optimal distribution is a thin active layer inside the pellet. This coincides with our previous theoretical results which are summarized in this paper.
📜 SIMILAR VOLUMES
Existence of multiple steady states and sustained oscillations in catalyst pellet with Dirac delta activity distribution and bimolecular reaction with Langmuir-Hinshelwood rate expression is numerically established. In addition it is shown that deactivation may lead to temporary oscillations.
An analysis of the influence of the non-uniform distribution of the active species in a catalyst pellet on the effectiveness factor and point yield for the van de Vusse reaction network is carried out. The effect of diierent parameters on the poiat yield for a single pellat and on the integral yield