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Computational‐fluid‐dynamics (CFD) modelling of an industrial crystallizer: application to the forced‐circulation reactor
Author(s) -
Essemiani Karim,
De Traversay Christelle,
Gallot Jean Claude
Publication year - 2004
Publication title -
biotechnology and applied biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 70
eISSN - 1470-8744
pISSN - 0885-4513
DOI - 10.1042/ba20030221
Subject(s) - computational fluid dynamics , residence time distribution , mixing (physics) , mechanics , flow (mathematics) , circulation (fluid dynamics) , residence time (fluid dynamics) , scale up , fluid dynamics , scale (ratio) , thermodynamics , materials science , environmental science , engineering , physics , classical mechanics , geotechnical engineering , quantum mechanics
The CFD (computational fluid dynamics) technique is used to describe the mixing conditions in a pilot‐scale FCC (forced‐circulation crystallizer) and to study the impact of flow rate and aspect ratio on local flow conditions and RTD (residence‐time distribution) in the crystallizer. The analysis adequately predicts the oscillating flow and two‐phase (gas–liquid) interaction at the free surface. A comparison has been made between the CFD predictions and models of RTD. The results support the use of CFD methodology as an aid to optimization of commercial‐scale FCC design.