Significant Increase in Hydrogen Photoproduction Rates and Yields by Wild-Type Algae is Detected at High Photobioreactor Gas Phase Volume (Fact Sheet)

Program Document · Sun Jul 01 00:00:00 EDT 2012

DOI:https://doi.org/10.2172/1047330· OSTI ID:1047330

This NREL Hydrogen and Fuel Cell Technical Highlight describes how hydrogen photoproduction activity in algal cultures can be improved dramatically by increasing the gas-phase to liquid-phase volume ratio of the photobioreactor. NREL, in partnership with subcontractors from the Institute of Basic Biological Problems in Pushchino, Russia, demonstrated that the hydrogen photoproduction rate inalgal cultures always decreases exponentially with increasing hydrogen partial pressure above the culture. The inhibitory effect of high hydrogen concentrations in the photobioreactor gas phase on hydrogen photoproduction by algae is significant and comparable to the effect observed with some anaerobic bacteria.

• Research Organization: National Renewable Energy Lab. (NREL), Golden, CO (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office
• DOE Contract Number: AC36-08GO28308
• OSTI ID: 1047330
• Report Number(s): NREL/FS-5600-54503; TRN: US201216%%379
• Resource Relation: Related Information: NREL (National Renewable Energy Laboratory)
• Country of Publication: United States
• Language: English

Related Subjects

08 HYDROGEN
59 BASIC BIOLOGICAL SCIENCES
ALGAE
BACTERIA
CONTRACTORS
FUEL CELLS
HYDROGEN
PARTIAL PRESSURE
PHOTOPRODUCTION
hydrogen production
photobioreactors
algae
algal
photoproduction
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