Abstract
In this study, the rate of pyrolysis and oxidation of 8 different samples of oil shale kerogen concentrate (KC) were investigated using TG/DTG technique. The rate of pyrolysis after preoxidation step performed at low temperature (below 230°C), was also studied. The determined pyrolysis activation energy increases with increasing paraffinic structure in the KC: an opposite effect was determined in the case of oxidation. Comparison of the reaction rate constants of the pyrolysis as well as the oxidation of untreated and pre-oxidized KC samples indicated the basis of the proposed thermal method for kerogen type determination.
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