Fermentation of gaseous substrates

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United States of America Patent

PATENT NO 9617509
SERIAL NO

14341731

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A reactor system is provided for improved fermentation of a gaseous substrate through the introduction of a secondary loop to a forced-circulation loop reactor. The reactor comprises a primary loop through which fermentation broth comprising a gaseous substrate is circulated through a riser segment and a downcomer section by a loop pump. Downstream of the loop pump a portion of fermentation broth is withdrawn from the downcomer section and is directed to the top of the reactor via a secondary loop. Further provided is a method for improving the mass transfer of a gaseous substrate to a fermentation broth in a fermentation vessel comprising a secondary loop. Further provided is a method for reducing foam in the headspace of a fermentation vessel comprising a secondary loop.

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Patent Owner(s)

Patent OwnerAddress
LANZATECH NZ INC8045 LAMON AVENUE SUITE 400 SKOKIE IL 60077

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cossey, Benjamin James Auckland, NZ 1 11
Li, Xueliang Skokie, US 12 39
Trevethick, Simon Richard Auckland, NZ 4 38

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