COAL COMBUSTION STUDIES USING THERMOGRAVIMETRIC ANALYSIS
Keywords:
Arrhenius equation, coal, thermogravimetryAbstract
Coal burning profiles can be determined using thermogravimetric analysis. Characteristic
temperatures were determined from the burning prof iles. Burning profiles could provide a
valuable, rapid laboratory method of ranking coals in terms oftheir burnout performance. In this
study, non-isothermal thermogravimetry and derivative thermogravimetry (TG/DTG) experiment were carried out for three types of coal samples, which are Blair Athol (Australian Coal), Merit Pita (Malaysian Coal) and Tanito Harum (Indonesian Coal). Thermogravimetry experiments were performed from ambient to 100(f'C in the synthetic air atmosphere. Differential thermogravimetric data were analysed using an Arrhenius type reaction model assuming a firstorder reaction . Kinetic parameters ofthe samples were determined and the results are discussed.
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