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- Title
Heat and Mass Transfer at the Wall of a Square Mechanically Stirred Gas‐Liquid‐Solid Catalytic Reactor.
- Authors
Fathalla, Ahmed S.; Amin, Nevine K.; El-Ashtoukhy, El-Sayed Z.; Sedahmed, Gomaa H.
- Abstract
Wall mass and heat transfer rates in a square gas‐sparged, mechanically stirred reactor were measured by the electrochemical technique under the effect of various geometrical and hydrodynamic variables. For the 45° impeller, the mass transfer data fit the equation Sh = 0.7Sc0.33Re0.2Reg0.5 with an average deviation of ±6.9 %. For the 90° impeller, the data fit the equation Sh = 0.95Sc0.33Re0.14Reg0.53 with an average deviation of ±7.5 %. Gas sparging enhanced the wall mass transfer rates by factors of up to 2.61 and 3 for the 90° and 45° impellers, respectively, with a significant decrease in the total power consumption. The contribution of the present results to the operation of multiphase mechanically agitated vessels in different aspects is outlined.
- Subjects
MASS transfer; HEAT transfer; SQUARE; IMPELLERS
- Publication
Chemical Engineering & Technology, 2022, Vol 45, Issue 1, p58
- ISSN
0930-7516
- Publication type
Article
- DOI
10.1002/ceat.202100142