CFD simulation of liquid-phase mixing in solid-liquid stirred reactor

Kasat, G. R. ; Khopkar, A. R. ; Ranade, V. V. ; Pandit, A. B. (2008) CFD simulation of liquid-phase mixing in solid-liquid stirred reactor Chemical Engineering Science, 63 (15). pp. 3877-3885. ISSN 0009-2509

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A comprehensive CFD model was developed to gain an insight into solid suspension and its implications on the liquid-phase mixing process in a solid-liquid stirred reactor. The turbulent solid-liquid flow in a stirred reactor was simulated using a two-fluid model with the standard k-ε turbulence model with mixture properties. The multiple reference frames (MRFs) approach was used to simulate impeller rotation in a fully baffled reactor. The computational model with necessary sub-models was mapped on to a commercial solver FLUENT 6.2 (of Fluent Inc., USA). The predicted solid concentration distribution was compared with the experimental data of Yamazaki et al. [1986. Concentration profiles of solids suspended in a stirred tank. Powder Technology 48, 205-216]. The computational model was then further extended to simulate and understand the implications of the suspension quality on liquid-phase mixing process. The computational model and the predicted results discussed here will be useful for understanding the liquid-phase mixing process in stirred slurry reactors in various stages of solid suspension.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Stirred Reactor; CFD; Solid Suspension; Mixing
ID Code:39588
Deposited On:14 May 2011 08:38
Last Modified:12 Jul 2012 09:51

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