Abstract

In this work, kinetic models are developed to interpret the fractionation dynamics under varying pretreatment conditions. Specifically aspen wood chip samples were prepared with three different dimensions for pretreatment using 72% 4-phenolsulfonic acid in an isothermal reaction vial. Then, the solid recovery and residual lignin content in the wood chip were measured, which was then utilized to estimate the model parameters. The effects of biomass size and temperature on the solubilization and delignification kinetics are discussed and assessed for further utilization.

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