Abstract
Non-isothermal thermogravimetric data were used to evaluate the Arrhenius parameters (activation energy and the pre-exponential factor) of the combustion of biochar. The biochar was produced as a byproduct from the fast pyrolysis of pine sawdust particle. The isoconversional methods (Kissinger–Akahira–Sunose and Flynn–Wall–Ozawa method) were used for evaluating the activation energy and the kinetic model function f(α), which was determined by using the master plot method. The effective activation energy for combustion of biochar was 212.524 kJ mol–1 in the conversion range of 0.15–0.85. The results showed that the most probable mechanism is the simple order reaction model function, f(α) = (1 – α)3.3, and A = 6.20 × 1012 s–1.
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