Waste tires are well known to have appropriate disposal or reprocessing problems under environmental and economically sustainable conditions. The pyrolysis represents valid modern technology to process waste tires to recover fuels and carbon black. However, the detailed degradation mechanism and kinetics of waste tire pyrolysis have not been thoroughly studied. In this work, pyrolysis of tread, sidewall and, innerliner of a waste tire of a light motor vehicle is thermogravimetrically investigated. The degradation profiles of said sections of waste tire predicted using various kinetic models. Kinetic models constituting a single reaction to four parallel reactions are considered for the stated purpose. The results reveal that the degradation profiles of tire sections are different from that of the whole tire. Among the kinetic models considered, the four reactions model predicts degradation for tread and sidewall sections with a fit percentage of over 98% with experimental data. The average activation energy of tread and sidewall obtained at this fit are 80.82 kJ mol⁻¹ and 79.99 kJ mol⁻¹, respectively. In comparison, the degradation behavior of the innerliner section is very well predicted using a three reactions model with a fit percentage of over 99% to experimental data. The average activation energy (E) estimated for highest fit is 53.78 kJ mol⁻¹ for innerliner section.

众所周知，废轮胎在环境和经济可持续的条件下存在适当的处置或再加工问题。热解代表了处理废轮胎以回收燃料和炭黑的有效现代技术。然而，废轮胎热解的详细降解机理和动力学尚未得到深入研究。在这项工作中，对轻型机动车辆废轮胎的胎面、胎侧和内衬的热解进行了热重研究。使用各种动力学模型预测所述废轮胎部分的降解曲线。出于所述目的，考虑了构成单个反应到四个平行反应的动力学模型。结果表明，轮胎截面的退化曲线与整个轮胎的退化曲线不同。在考虑的动力学模型中，四个反应模型预测胎面和胎侧部分的退化，与实验数据的拟合百分比超过 98%。在这种配合下获得的胎面和胎侧的平均活化能为 80.82 kJ mol^-1和 79.99 kJ mol ^-1，分别。相比之下，使用与实验数据的拟合百分比超过 99% 的三反应模型可以很好地预测内层部分的退化行为。对于内衬部分，最高拟合估计的平均活化能 (E) 为 53.78 kJ mol ^{-1 。}