C - Chemistry – Metallurgy – 12 – N
Patent
C - Chemistry, Metallurgy
12
N
195/145
C12N 1/00 (2006.01) C12M 1/06 (2006.01)
Patent
CA 1087124
AN IMPROVED FERMENTATION METHOD AND APPARATUS Abstract of the Disclosure A method and apparatus for fermentation of a biomass comprises use of a fermenter which has two separate impellers driven at different speeds. One impeller is used to achieve circulation of the biomass within the fermenter. The second impeller is used to create a fine dispersion of oxygen fed into the impeller. Typically, the upper impeller in a cylindrical fermenter of vertical axis is an axial flow impeller producing downward flow and the lower impeller produces radially outward flow.
304538
Legrys Geoffrey A.
Solomons Gerald L.
Mccarthy Tetrault Llp
Ranks Hovis Mcdougall Limited
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