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Pyrolysis kinetics of oil shales determined by DSC and TG/DTG

Kinetics of oil shale pyrolysis was studied by differential scanning calorimetry and non-isothemal thermogravimetry. In nitrogen atmosphere two different mechanisms causing mass loss were observed: distillation in the region between ambient temperature and 500 K, visbreaking and cracking in the region of 500-800 K. Kinetic parameters of the sample pyrolysis are determined using different kinetic models, and the results are discussed.