Abstract
A new kinetic model was developed for the pyrolysis of cellulose. To precisely describe the pyrolysis behavior, it is necessary to take into account of the change in cellulose macromolecule structure during pyrolysis. The kinetic parameters of dehydration and devolatilization reactions were represented as a function of the crystallinity or the amount of the hydroxyl groups. The estimated activation energies were spread over 110-210 kJ/mol with the crystallinities. The validity of the presented model was examined through the model calculations. The weight loss curves were strictly calculated for any heating rates by using the presented model. Thus, the proposed model could successfully describe the change in the structure of cellulose during pyrolysis.
