Honors College Thesis


Effect of Reaction Parameters on the Catalytic Oxidation of Poplar Lignin Public Deposited

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  • Nowadays, woody biomass is becoming increasingly significant because of its renewability and biodegradability. Lots of opportunities have been found to use excessive biological resources to derive products as diverse as fuels, heat, electricity, chemicals, food, clothing, paper, and much more. As such, biomass plays an important role in meeting demands in energy consumption, environmental protection, and economic growth. As one of three major organic components in woody biomass, lignin is a polymer that cannot be directly incorporated in performance materials or specialty chemicals. Therefore, alkaline hydrogen peroxide (AHP) treatment - an efficient and economic lignin oxidation method - is essential to cleave chemical bonds and break large molecules into small molecules. More specifically, this type of lignin oxidation utilizes hydrogen peroxide as oxidant and an aqueous solution containing Cu-bipyridine complexes as catalyst. The purpose of this research is to optimize the preparation process of oxidized lignin at bench scale and investigate the effect of reaction parameters on the catalytic oxidation of poplar lignin. Key Words: AHP, lignin oxidation, optimize, structural change
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