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

  • Félix A. LÓPEZ Spanisch Council for Scientific Researche (CSIC)
  • Amir A. EL HADAD School of Science and Technology, Nottingham Trent University, Clifton Lane, Nottingham, NG11 8NS
  • Francisco J. ALGUACIL National Center for Metallurgical Researche (CENIM).Spanisch Council for Scientific Researche (CSIC)
  • Teresa A. CENTENO Instituto Nacional del Carbón (INCAR). Spanisch Council for Scientific Researche (CSIC)
  • Belén LOBATO Instituto Nacional del Carbón (INCAR). Spanisch Council for Scientific Researche (CSIC).
Keywords: granulated scrap tyre, TGA/DTG, kinetic, pyrolysis

Abstract

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 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 obtained by other authors was made.

DOI: http://dx.doi.org/10.5755/j01.ms.19.4.2947

Author Biographies

Francisco J. ALGUACIL, National Center for Metallurgical Researche (CENIM).Spanisch Council for Scientific Researche (CSIC)

Head of the Department of Primary Metallurgy and Materials Recycling

Teresa A. CENTENO, Instituto Nacional del Carbón (INCAR). Spanisch Council for Scientific Researche (CSIC)
Department of Coal, Energy and Environment (Energy Processes and Emissions Reduction Group).
Belén LOBATO, Instituto Nacional del Carbón (INCAR). Spanisch Council for Scientific Researche (CSIC).
Department of Coal, Energy and Environment (Energy Processes and Emissions Reduction Group).
Published
2013-12-11
Section
POLYMERS AND COMPOSITES, WOOD