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Gas‐phase properties in stirred tank bioreactors
Author(s) -
Fischer Joachim,
Brüring Stefan,
Lübbert Andreas
Publication year - 1992
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270150605
Subject(s) - bubble , bioreactor , mechanics , continuous stirred tank reactor , materials science , flow (mathematics) , gas phase , chemistry , thermodynamics , chemical engineering , engineering , physics , organic chemistry
Bubble properties in stirred tank bioreactors equipped with standard radial flow Rushton turbines have been investigated. Bubble velocity patterns within a stirred tank reactor were derived from measured local bubble velocity distributions. Local information on specific interfacial areas, bubble number densities and bubble diameters together with local gas hold‐ups, measured in a model medium at gas flow rates which are employed in practice, is presented. All measurements were performed with two new ultrasound pulse techniques which can be used in model as well as during real cultivation processes.