Abstract
In this study, a total of 12 coal samples were collected. Physical and chemical cleaning were employed on these collected coal samples. In order to characterize the kinetics of each coal sample, activation energies of each corresponding coal sample were determined. Arrhenius equation was employed for the determination of above mentioned activation energies. Activation energies for both physically and chemically clean coal samples were determined. Activation energy of coal sample after chemical cleaning is observed to be higher the one that is obtained after physical cleaning. Referring to these differences, increase in activation energy after chemical cleaning was considered to be side effect of chemical cleaning, since higher activation energy means higher heat requirement for sample to be activated. Corresponding differences of activation energies were compared with the calorific values change respectively after physical cleaning and after chemical cleaning.
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