CFD simulation of gas–liquid flow behaviour in an air-lift reactor: determination of the optimum distance of the draft tube |
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| Authors: | Atefeh Hekmat Abtin Ebadi Amooghin Mostafa Keshavarz Moraveji |
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| Affiliation: | 1. Manufacturing and Process Technologies Research Division, Faculty of Engineering, University of Nottingham, University Park, Nottingham NG7 2RD, United Kingdom;2. Department of Multiphase Reactors, Institute of Chemical Process Fundamentals, Czech Academy of Sciences, Rozvojova 135, Prague 6 165 02, Czech Republic;1. Department of Mechanical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Department of Chemical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Department of Petroleum and Chemical Engineering, Faculty of Engineering, Institut Teknologi Brunei, Tungku Gadong, P.O. Box 2909, Brunei Darussalam |
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| Abstract: | CFD simulation in an air-lift reactor containing a draft tube was employed. Three different layouts between the draft tube and the wall were used to determine the optimum distance between them. Appropriate distance of the draft tube and the wall was determined for the designing purposes, and the best distance was calculated. The simulation results were compared with the experimental results of the Menzel et al. Also it was also proven that the optimum distance results in the best possible effective mixing, higher rotary movements of the liquid and gas, and consequently improves the reactor performance. |
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