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Modelling a solid-state fluidized bed fermenter for Ethanol production with S. cerevisiae

✍ Scribed by L. Röttenbacher; M. Schößler; W. Bauer

Publisher
Springer
Year
1987
Tongue
English
Weight
491 KB
Volume
2
Category
Article
ISSN
1615-7605

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✦ Synopsis

A model is proposed to describe the performance of a new type of fermenter for ethanol production, the fluidized bed gas-solid fermenter, with respect to scaling-up effects. Based on the fact that in the fluid bed the substrate is not supplied continuously to each particle, two scale-up parameters are derived, circulation time r and specific substrate supply Amo, p, which are shown to influence reactor efficiency significantly. The validity of the model is checked by comparing the calculated yield coefficients for ethanol, cell mass and carbon dioxide to the results of fermentation experiments performed under aerobic conditions in a laboratory-scale reactor and a semi-technical fermenter.

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