Gas holdup and overall volumetric oxygen transfer coefficient in airlift contactors |
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| Authors: | Bello R A Robinson C W Moo-Young M |
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| Institution: | Biochemical Engineering Group, Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1. |
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| Abstract: | The two major types of airlift contactors, concentric-tube and external-loop, were investigated for their gas holdup (riser and downcomer) and overall mass transfer characteristics. Results obtained in batch charges of tap water and 0.15 kmol/m(3) NaCl solution are reported for external-loop airlift contactors having downcomer-to-riser cross-sectional area ratios, A(d)/A(r), ranging from 0.11
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