Cellulose Conversion to Hydrogen and Electricity Cellulose Conversion to Hydrogen and Electricity Jay Regan Assistant Professor Department of Civil & Environmental Engineering Penn State University Jay Regan Assistant Professor Department of Civil & Environmental Engineering Penn State University
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Cellulose Conversion to Hydrogen and ElectricityCellulose Conversion to Hydrogen and Electricity
Jay ReganAssistant Professor
Department of Civil & Environmental EngineeringPenn State University
Jay ReganAssistant Professor
Department of Civil & Environmental EngineeringPenn State University
de Groot (2003). In: Bio-Methane & Bio-Hydrogen.
Biomass to Secondary Energy Carriers
microbial fuel cells
1) Fermentative production of H2 from sugars
• Full oxidation of glucose to H2:
C6H12O6 + 6 H2O 12 H2 + 6 CO2
• Known pathways:
C6H12O6 + 2 H2O 4 H2 + 2 C2H4O2 + 2 CO2
C6H12O6 2 H2 + C4H8O2 + 2 CO2
• Typical yield < 2 mol H2/mol glucose
Cellulosic biomass is more recalcitrant to biological treatment
(DOE, 2006)
Cellulose Cellobiose Glucose
Hydrolysis of Cellulose
Inoculum H2 Yield Reference(mol/mol hexose)
Clostridium cellulolyticum 1.66 (6.7 g/L initial) Desvaux et al (2000)
0.33 (29.1 g/L)
Heat-shocked sludge 0.36 (12.5 g/L) Lay et al (2001)
0.08 (50 g/L)
Heat-shocked soil 0.005 (4.0 g/L) Logan et al (2002)