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Biological and Catalytic Conversion of Biomass to Biofuels and Chemicals Jingguang Chen Chemical Engineering. Molecular Architecture of Plant Cell Walls ( lignocellulosic biomass). 200 nm. McCann et al. 1990 J. Cell Sci. 96 , 323-334. Lignin and Cellulose Molecules.
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Biological and Catalytic Conversion of Biomass to Biofuels and Chemicals Jingguang Chen Chemical Engineering
Molecular Architecture of Plant Cell Walls (lignocellulosic biomass) 200 nm McCann et al. 1990 J. Cell Sci. 96, 323-334
Lignin and Cellulose Molecules • Average molecular composition, soft maple lignin: CH1.2O0.27 • Cellulose composition: CH1.7 O0.83 • Up to 30% of the mass of wood, and 40% of the energy content • Wood processing plants produce 50 million tons of lignin waste annually Holladay et al. “Top Value-Added Chemicals from Biomass: Volume II- Results of Screening Potential Candidates from Biorefinery Lignin.” Pacific Northwest National Laboratory. October 2007.
Converting Biomass Using Biorefinery Concept R. Agrawal and N. Singh, AIChE Journal, 55, 1898 (2009)
Biological Conversion of Cellulose to Biofuel McCann et al.
Chemistry of Biodiesel Source: Gerpen, J. V. (2005). "Biodiesel Processing and Production." Fuel Processing Technology86: 1097-1107.
UD Energy Frontier Research Center Crosscutting Research Thrust Hierarchical Multiscale Materials Multiscale Modeling Characterization techniques Reforming Technological Platform H2 Chemicals Catalytic Fast Pyrolysis Direct Carbon FCs Chemicals Fuels Electricity Science Reaction Pathways, Kinetics, Structure-Property Relationships Processing Process Innovation, Optimization
Thermal Conversion of Lignin to Jet Fuel Huber, GW. “Catalysis for Production of JP-8 Range Molecules from Lignocellulosic Biomass.” 12 March 2009. UD collaborators: Prof. Lobo, Chemical Engineering
Very high T CPOX Syngas Thermochemical Transformation of Lignocellulosic Biomass • Traditional paths entail high temperatures and suffer from carbon • CPOX forms no carbon Cat. upgrade Fuel Oil Char Tar Pyrolysis High T Methanol Synfuel Syngas Char Gasification Biomass
CPOX of Cellulose 3 mm Dauenhauer (UMass) and Schmidt (UMN)
Catalytic Conversion of Cellulose to Chemicals Conversion of cellulose to ethylene glycol on Ni-WC & Ni-W2C: Na et al. Angew. Chem. Int. Ed. (2008); Catalysis Today (2009)