Kinetics of the Thermal Decomposition of Biomass and the Influence of Alkali Metals on these Kinetics

TL;DRAbstract

The thermal degradation of biomass has received extensive consideration due to its central role in biomass combustion. Biomass decomposition is also a major step in fast pyrolysis and other thermal processing methods involved in the production of chemicals. Detailed understanding of the kinetics of biomass decomposition is vital for reactor kinetics and combustion processes modeling. Analysis methods were studied to determine which method is best suited for reliable kinetic parameter extraction based TGA derived data, kinetics most applicable to industrial applications were explored. This paper then goes on to develop a preliminary expression (involving only SRC Willow and only potassium) directly linking biomass degradation kinetics to the inherent alkali metal content. The Senum-Yang, the Murray and White, and the reaction rate constant methods all yield apparent first-order kinetics that give excellent predictions of pyrolysis under slow heating rate conditions. For higher heating r

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