Abstract
Derivative thermogravimetry (DTG), emanation thermal analysis (ETA), gas adsorption methods for surface area and microporosity measurements, helium pycnometry and mercury porosimetry have been used for the characterization of structural changes in two bitumenous coals of British origin (Manvers Wath and Markham Main), during heating in argon up to 980 °C (heating rate 5 °C/min). The results are compared and advantages of the ETA for the assessment of the surface area and porosity changes in dynamical conditions of thermal treatment are demonstrated.
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