Abstract
The thermolysis of Mongolian coals of different ranks was studied using thermal analysis (TG/DTG). The stepwise decomposition under conditions of programmed heating to 1000°C in an atmosphere of argon was found. The kinetic parameters of pyrolysis were determined based on thermogravimetric analysis with the use of model-fitting (Coats–Redfern) and model-free (Ozawa–Flynn–Wall) calculation methods. Changes in the activation energy with the degree of decomposition of the organic matter of coals of different ranks were established. A kinetic compensation effect was revealed, which was, probably due to the multicomponent composition of coals.
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