title: Pyrolysis behavior of tire-derived fuels at different temperatures and heating rates.
abstract: Pyrolytic product distribution rates and pyrolysis behavior of tire-derived fuels (TDF) were investigated using thermogravimetric analyzer (TGA) techniques. A TGA was designed and built to investigate the behavior and products of pyrolysis of typical TDF specimens. The fundamental knowledge of TGA analysis and principal fuel analysis are applied in this study. Thermogravimetry of the degradation temperature of the TDF confirms the overall decomposition rate of the volatile products during the depolymerization reaction. The principal fuel analysis (proximate and ultimate analysis) of the pyrolytic char products show the correlation of volatilization into the gas and liquid phases and the existence of fixed carbon and other compounds that remain as a solid char. The kinetic parameters were calculated using least square with minimizing sum of error square technique. The results show that the average kinetic parameters of TDF are the activation energy, E = 1322 +/- 244 kJ/mol, a pre-exponential constant of A = 2.06 +/- 3.47 x 10(10) min(-1), and a reaction order n = 1.62 +/- 0.31. The model-predicted rate equations agree with the experimental data. The overall TDF weight conversion represents the carbon weight conversion in the sample.
authors.affiliation: Department of Civil and Environmental Engineering, University of Cincinnati, OH 45221, USA.
authors.forename: Kessinee
authors.initials: K
authors.lastname: Unapumnuk
authors.forename: Tim C
authors.initials: TC
authors.lastname: Keener
authors.forename: Mingming
authors.initials: M
authors.lastname: Lu
authors.forename: Soon-Jai
authors.initials: SJ
authors.lastname: Khang
mesh_terms: D003247:Conservation of Natural Resources; D006358:Hot Temperature; D007700:Kinetics; D008420:Manufactured Materials; D012408:Rubber / Q000737:chemistry*; D013818:Thermogravimetry
chemical_list: D012408:Rubber