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Circulation and scale-up in bubble columns

โœ Scribed by Nicholas W. Geary; Richard G. Rice

Publisher
American Institute of Chemical Engineers
Year
1992
Tongue
English
Weight
560 KB
Volume
38
Category
Article
ISSN
0001-1541

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โœฆ Synopsis

The liquid circulation model of Rice and is extended to include turbulence originating at the wall. Thus, two possible length scales are considered: one originating from rising bubbles and the other emanating from the wall. The appropriate scale for small columns should be based on bubble size, while for larger systems the proper mixing length is proportional to column diameter. It is proposed that the film Reynolds number may be the key in distinguishing the two cases.

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