INTERPRETATION OF THE GAS RESIDENCE TIME DISTRIBUTIONS IN LARGE STIRRED-TANK REACTORS

Authors
RUFFER HM PETHO A SCHUGERL K LUBBERT A ROSS A DECKWER WD
Citation
Hm. Ruffer et al., INTERPRETATION OF THE GAS RESIDENCE TIME DISTRIBUTIONS IN LARGE STIRRED-TANK REACTORS, Bioprocess engineering, 11(4), 1994, pp. 145-152
Citations number
19
Categorie Soggetti
Biothechnology & Applied Migrobiology
Journal title
Bioprocess engineering → ACNP
ISSN journal
0178515X
Volume
11
Issue
4
Year of publication
1994
Pages
145 - 152
Database
ISI
SICI code
0178-515X(1994)11:4<145:IOTGRT>2.0.ZU;2-I
Abstract
The behaviour of dispersed gas in large aerated stirred tank reactors is modelled by means of a Markov-process, which distinguishes between small recirculation bubbles with ''stagnant gas'' content, large risin g bubbles with ''active gas'' content and exchange of stagnant and act ive gas contents, the ''gas exchange'' region at the impeller. The mea surements of the gas residence time distributions (RTDs) in an 1.5 m3 aerated stirred tank reactor with water and Penicillium chrysogenum cu ltivation medium are interpreted by this model.