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| Titel: |
HEAT TRANSFER PHENOMENA IN TRICKLE-BED REACTORS |
| Auteur: |
Crine, M. |
| Verschenen in: |
Chemical engineering communications |
| Paginering: | Jaargang 19 (1982) nr. 1-3 pagina's 99-114 |
| Jaar: |
1982-12-01 |
| Inhoud: |
The interrelations between heat transfer phenomena and liquid hydrodynamics in trickle-bed reactors are investigated. The experiments are carried out in a large size flow model (0·6 m diameter; 1 m long) using a procedure which allows to determine simultaneously the effective thermal conductivity and the dynamic liquid holdup )continuous reactor weighing(. Both phenomena are related to a same hydrodynamic feature: the liquid flow maldistribution which may be characterized by the particle irrigation rate. We propose a model describing both phenomena at the particle and bed scales. The change of scale between these two observation levels is achieved by means of the percolation theory. Tentative correlations of the effective thermal conductivity and the dynamic liquid holdup are derived. They show a good agreement with the experimental data reported in this work. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
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