Título:Bagasse Pyrolysis: A Comparative Study on Kinetic Models.
Autores: SANTOS, K. G.; LOBATO, F. S.; BARROZO, M. A. S.; MURATA, V. V.; LIRA, T. S.; GIANESELLA, M.
Revista: Chemical Engineering Communications, 199, 109-121, 2012.
Resumo: Thermogravimetric analysis was made of slow sugarcane bagasse pyrolysis. Several models of primary decomposition were tested and compared. Kinetic parameters were estimated using nonlinear regression and the differential evolution method. A one-step reaction model with first-order and n-order kinetics, a consecutive reaction model, and an independent parallel reaction model were employed in the modeling. The results show that the one-step model does not accurately represent the data of weight loss (TG) and its derivative (DTG). The consecutive reaction model yielded the expected activation energy results for the first two peaks corresponding to hemicellulose and cellulose, but inaccurate results for lignin. The independent parallel reaction model yielded the best results for the three subcomponents. The mass fraction of each subcomponent was estimated by the three independent parallel reaction models, showing values consistent with those reported in the literature.
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