Oxygen transfer and scale-up in bioreactors using hydro-ejectors for gas-liquid contacting |
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| Authors: | A. Orfaniotis M. Lalane N. Doubrovine C. Fonade B. Mayr A. Moser |
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| Affiliation: | (1) Institute for Biotechnology, University of Technology Graz, Petersgasse 12, 8010 Graz, Austria;(2) Département de Génie Biochimique et Alimentaire, Centre de Bioingénierie Gilbert Durand, UA CNRS 544 Equipe Associée INRA, Institut National des Sciences Appliquées Complexe Scientifique de Rangueil, 31077 lToulouse Cedex, France |
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| Abstract: | The commonly used scale-up criteria are investigated for their applicability in the case of hydro-ejector reactors. In combination with the liquid jet momentum, which characterizes the hydro-ejector, a scale-up correlation with the oxygen transfer rate as scale-up criterion is proposed, independent of the type of hydro-ejector and the reactor configuration. The results with regard to the power input are compared with those of stirred tank and bubble column. Its competitiveness is at high power per volume input and above all in large scale reactors. |
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