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Liquid circulation time in concentric‐tube airlift columns with non‐newtonian fermentation broths
Author(s) -
Kawase Yoshinori,
MooYoung Murray
Publication year - 1989
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.280460403
Subject(s) - airlift , shear thinning , concentric , tube (container) , non newtonian fluid , newtonian fluid , industrial fermentation , circulation (fluid dynamics) , materials science , mechanics , rheology , fermentation , chromatography , chemistry , mathematics , composite material , bioreactor , physics , geometry , food science , organic chemistry
Liquid circulation times were measured in a 40‐dm 3 concentric‐tube airlift fermenter with simulated media over a wide range of rheological properties. Circulation times decreased with increasing shear‐thinning, and the influence of draft‐tube geometry on circulation time was found to depend on the shear‐thinning of the media. A semi‐theoretical correlation for both Newtonian and non‐Newtonian fermentation media was developed.