Four coal samples from the Islam Kot, (Tharparkar) were characterized by Thermogravimetric (TG) analysis. Thermal decompositions were carried out in inert (pyrolysis) and air (combustion) atmosphere at temperature range 25’ 1000 C. Characteristic temperatures were determined from the burning profiles. Burning profile could provide a valuable rapid laboratory method of ranking coal in terms of burn out performances. Burning profile data were compared with volatile results. A comparison of the total H/C release from raw and dematerialized coal were made. The effect of sample amount, pyrolysis atmosphere, Nitrogen and Helium, particle size, heating rate and gas flow rate were studied. Peak temperature and bum out temperature were slightly decreased as the particle size decreased.


A KARIM ,T AKHTAR ,F A KHAN ,M IQBAL ,