(245c) Chemical Characterization of Catalytic Hydrodeoxygenated Bio-Oil and Their Distilled Fractions

Fast pyrolysis is a potentially important route for biomass conversion to fuels. Researchers have shown that the problematic raw bio-oil properties of high acidity, high water content, lower heating value and variable viscosity are resolved by application of hydrodeoxydation (HDO). In this study, we pyrolyzed pine wood in an auger reactor at 450 C and the produced bio-oil was upgraded by HDO single-stage catalysis. The hydrocarbons produced in the HDO bio-oil were in the range between gasolin and Jet-fuels. We distilled the HDO bio-oil to determine the ability of producing relatively clean hydrocarbon fractions. The HDO bio-oil was distilled by spinning band distillation column into fractional boiling point ranges. The upgraded bio-oil and distilled fractions were characterized by GC/MS, FT-IR, NMR and elemental analysis. The distilled fractions were also compared with transport fuels by simulated distillation. Physical properties, such as higher heating value, viscosity, pour and flash points were also determined.