Multi-stage microbial system for continuous hydrogen production

Details Multi-stage microbial system for continuous hydrogen production Multi-stage microbial system for continuous hydrogen production

2003-10-01

2010-06-08

Carlson, Karen Cochrane (Department: 1652)

Chemistry: molecular biology and microbiology

Micro-organism, tissue cell culture or enzyme using process...

Preparing element or inorganic compound except carbon dioxide

C435S252100, C435S257100

Reexamination Certificate

active

07732174

ABSTRACT:
A method of using sequential chemostat culture vessels to provide continuous H2production, in which photosynthetic O2evolution and H2photoproduction are separated physically into two separate bioreactors, comprising: a) growing a microorganism culture able to continuously generate H2by photosynthetically producing cells at about the early-to-late log state in a first photobioreactor operating as a sulfur chemostat under aerobic and/or conditions; b) continuously feeding cells from the first photobioreactor to a second photobioreactor operating under anaerobic conditions and sulfur deprivation conditions resulting from constant uptake of sulfate in the first bioreactor and a low rate of culture flow between the first and second bioreactors, for induction of hydrogenase and H2photoproduction to allow for continuous cultivation of the microorganism's cells in the first photobioreactor and constant H2production in the second photobioreactor, and c) H2gas from the second photobioreactor.

REFERENCES:
patent: 5871952 (1999-02-01), Ghirardi et al.
patent: 6277589 (2001-08-01), Seibert et al.
Zhang et al., “Probing green algal hydrogen production,” Phil Trans R Soc Lond B 357:1499-1509, 2002.
Wang et al., Fermentation and Enzyme Technology, John Wiley & Sons, New York, 1979, pp. 98-108.
Kosourov, Sergey et al., “Sustained Hydrogen Photoproduction byChlamydomonas reinhardtii; Effects of Culture Parameters.” Biotechnology and Bioengineering. June 2002, vol. 78, No. 7, pp. 731-740, see entire document.

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