Isothermal Kinetic Analysis of the Thermal Decomposition of Wood Chips from an Apple Tree

The thermal decomposition of wood chips from an apple tree is studied in a static air atmosphere under isothermal conditions. Based on the thermogravimetric analysis, values apparent activation energy and pre-exponential factor are 34 ± 3 kJ mol−1 391 2 min−1, respectively. These results have also shown that this process can be described by rate first-order chemical reaction. This reaction model valid only for temperature range 250–290 °C, mainly due to lignin decomposition. obtained used kinetic prediction, which compared with measurement. show slower at higher degree conversion, caused influence experimental condition. Nevertheless, parameters could optimization combustion small-scale biomass boilers.