JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
Print ISSN : 0021-9592
Research Papers
Local Gas Holdup and Gas Recirculation Rate in an Aerated Vessel Equipped with a Rushton Turbine Impeller
Katsuhide TakenakaKoji Takahashi
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1996 Volume 29 Issue 5 Pages 799-804

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Abstract

Local gas holdup was measured throughout an aerated vessel equipped with a Rushton turbine impeller by means of an electrical probe. Integration of the data of local gas holdup gave a good correlation for the overall gas holdup. The gas recirculation rate, which influences cavity formation and the related power consumption and mass transfer, was also determined by integrating the data of local gas holdup for regions lower than the height of impeller. By taking into account the gas recirculation rates, a more precise correlation for overall gas holdup could be obtained.

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© 1996 The Society of Chemical Engineers, Japan
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