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Non‐newtonian two‐phase circulation in bubble columns
Author(s) -
Clark Nigel N.,
Flemmer Rory L. C.,
Van Egmond Jan W.
Publication year - 1989
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450670520
Subject(s) - distributor , slurry , circulation (fluid dynamics) , aeration , bubble , mechanics , turbulence , column (typography) , airlift , newtonian fluid , rheology , petroleum engineering , materials science , chromatography , chemistry , geology , thermodynamics , mechanical engineering , engineering , physics , composite material , bioreactor , organic chemistry , connection (principal bundle)
Gas‐liquid and gas‐slurry bubble columns are widely used in the mineral and engineering industries, particularly for aeration (oxidation), synthesis of oil and flotation of mineral fines. Even though gas may be introduced into a bubble column evenly through a distributor plate over the whole column floor, undesirable circulation patterns generally develop in the column. This paper extends a force balance approach (originally used for turbulent systems) to predict circulation in non‐Newtonian gas‐liquid mixtures and demonstrates how the rheological properties will affect a single circulation pattern in a column.