Computational fluid dynamic (CFD) simulation of a pilot-scale annular bubble column photocatalytic reactor

The behavior of an 18-l pilot-scale photocatalytic reactor has been investigated using a computational fluid dynamic (CFD) approach. The granular Eulerian model was used to describe the multiphase flow system. Solid recirculation was predicted while liquid velocity vectors were influenced by the gas...

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Bibliographic Details
Published in:Chemical engineering science 2003-02, Vol.58 (3), p.859-865
Main Authors: Pareek, V.K., Cox, S.J., Brungs, M.P., Young, B., Adesina, A.A.
Format: Article
Language:English
Subjects:
Applied sciences
Chemical engineering
Chemistry
Computational fluid dynamics (CFD)
Exact sciences and technology
General and physical chemistry
Other industrial wastes. Sewage sludge
Photocatalytic
Photochemistry
Photoreactor
Physical chemistry of induced reactions (with radiations, particles and ultrasonics)
Pollution
Reactors
Three-phase reactors
Wastes
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Summary:The behavior of an 18-l pilot-scale photocatalytic reactor has been investigated using a computational fluid dynamic (CFD) approach. The granular Eulerian model was used to describe the multiphase flow system. Solid recirculation was predicted while liquid velocity vectors were influenced by the gas flow. The companion radiation transport equation was iteratively solved using a finite-volume-based discrete ordinate method. The first-order photodegradation kinetics of spent Bayer liquor previously studied in the same reactor was used to evaluate the CFD simulation. A Pearson correlation coefficient 0.974 between simulated and experimental data is indicative of model adequacy.
ISSN:0009-2509
1873-4405
DOI:10.1016/S0009-2509(02)00617-6