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B IOMASS C OMBUSTION S TUDY : Model Compounds of Lignin Pyrolysis. Sandor Rosta Advisor: John W. Daily Ph.D University of Colorado, Boulder Department of Mechanical Engineering. MCEN 5208 10.13.04 1/6. M OTIVATION. Combustion Chemistry of Biomass Gasification
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BIOMASS COMBUSTION STUDY:Model Compounds of Lignin Pyrolysis Sandor Rosta Advisor: John W. Daily Ph.D University of Colorado, Boulder Department of Mechanical Engineering MCEN 5208 10.13.04 1/6
MOTIVATION • Combustion Chemistry of Biomass Gasification • Applications in: • Wildland Fire • Energy Generation MCEN 5208 10.13.04 2/6
BACKGROUND • Biomass Materials • Composite of Organic Polymers • Cellulose • Hemicellulose • Lignin • Extractables • Pyrolysis • Heating in the absence of oxygen • Different compounds decompose differently MCEN 5208 10.13.04 3/6
LIGNIN • Second Most abundant organic substance on earth • Amorphous Polymeric Material • Makes up 20-40% mature wood tissue • Provides strength and durability • Protects plants against microorganisms MCEN 5208 10.13.04 4/6
SHORT TERM GOALS • Identify Compounds associated with Lignin pyrolysis • Determine Model Compounds • Analyze the products that are formed when those compounds are burned • Chemkin MCEN 5208 10.13.04 5/6
LONG TERM GOALS • Burn synthetic fuels in air • Measure the formed products • Gas chromatography • Stable species • Laser spectroscopy • Radical species MCEN 5208 10.13.04 6/6