DTG combustion behaviour of coal

Solid fuel samples were characterized by their proximate and ultimate analyses and then subjected to heat in a thermobalance, both under air and nitrogen. Trends in weight loss were recorded by thermogravimetry (TG) and derivative thermogravimetry (DTG). By examining the data obtained, it was possible to show the existence of good correlations between the VM FC , C H and (C + H) O ratios and both rate of weight loss data and the temperatures deduced from the burning and volatile release profiles. Methods for evaluating the reactivity of coal are reported showing that these substantially agree with the results obtained.