Gas driven fermentation method using two oxygen-containing gases

Details Gas driven fermentation method using two oxygen-containing gases Gas driven fermentation method using two oxygen-containing gases

1996-09-13

1998-08-25

Naff, David M.

Chemistry: molecular biology and microbiology

Micro-organism, per se ; compositions thereof; proces of...

435813, 435818, C12N 100

Patent

active

057982546

ABSTRACT:
A gas driven fermentation method is disclosed wherein a gas, such as air, is passed heterogeneously upwardly through a fermentation broth to agitate and recirculate the broth. Further, the provision of oxygen for fermentation permits the carbon dioxide to be stripped off; and in addition a second gas, such as a fluid-containing oxygen is passed homogeneously upwardly through the broth to provide for supplemental air flow for the fermentation. The heterogeneously flow is carried out at a superficial velocity greater than 0.03 meter/second (m/sec); and the homogenous flow is carried out at a superficial velocity less than 0.05 m/sec.

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patent: 4670397 (1987-06-01), Wegner et al.
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patent: 5356600 (1994-10-01), Kiyonaga et al.

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