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CFD Simulation of Residence Time Distribution and Mixing in Bubble Column Reactors

โœ Scribed by Kalekudithi Ekambara; Jyeshtharaj B. Joshi

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
698 KB
Volume
81
Category
Article
ISSN
0008-4034

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โœฆ Synopsis

Abstract

A threeโ€dimensional CFD model has been developed to predict liquid phase velocities in bubble columns. An agreement was observed between the predicted and the experimental data available in the published literature. The validated CFD model has been extended for the simulation of macroโ€mixing and hence the prediction of mixing time, RTD and dispersion coefficient. Liquid phase mixing time was measured in 0.2 and 0.4 m i.d. columns over a wide range of superficial gas velocity (0.07 to 0.295 m/s) and heightโ€toโ€diameter ratio (2 to10). An agreement was observed between the CFD predictions and the experimental values of the mixing time as well as all the experimental data on dispersion coefficient published in the literature.

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