Kinetics of the Thermal Degradation of Granulated Scrap Tyres: a Model-free Analysis

Kinetics of the Thermal Degradation of Granulated Scrap Tyres: a Model-free Analysis

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Pyrolysis is a technology with a promising future in the recycling of scrap tyres.This paper determines the thermal decomposition behaviour and kinetics of granulated scrap tyres (GST) by examining the u11-200ps thermogravimetric/derivative thermogravimetric (TGA/DTG) data obtained during their pyrolysis in an inert atmosphere at different heating rates.The model-free methods of Friedman, Flynn-Wall-Ozawa and Coats-Redfern were used to determine the reaction kinetics from the DTG data.The apparent activation energy and pre-exponential factor for the degradation of GST were calculated.A comparison with the results here obtained by other authors was made.

DOI: http://dx.doi.org/10.5755/j01.ms.

19.4.2947.