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Hold-up and fluid mixing in gas-liquid fluidised beds

✍ Scribed by M.L. Michelsen; K. Østergaard


Book ID
107939371
Publisher
Elsevier Science
Year
1970
Weight
817 KB
Volume
1
Category
Article
ISSN
0300-9467

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The paper considers the problems of predicting and correlating gas and liquid hold-ups in-three-phase fluidised beds. It is proposed that Stewart's model, which contains a single unknown parameter k (the mean liquid-wake/bubble volu\_me ratio in the bed), should be used in conjunction with Wallis' d

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Gas hold-up and liquid phase axial dispersion coefficient have been measured in water filled bubble columns of 5.08, 14.0 and 29sOcm dia. as a function of the superficial gas velocity. From the gas hold-up measurements the following relationship between the relative velocity between gas and liquid,