title: Pyrolysis of tyre powder using microwave thermogravimetric analysis: Effect of microwave power.
abstract: The pyrolytic characteristics of tyre powder treated under different microwave powers (300, 500, and 700 W) were studied via microwave thermogravimetric analysis. The product yields at different power levels were studied, along with comparative analysis of microwave pyrolysis and conventional pyrolysis. The feedstock underwent preheating, intense pyrolysis, and final pyrolysis in sequence. The main and secondary weight loss peaks observed during the intense pyrolysis stage were attributed to the decomposition of natural rubbers and synthetic rubbers, respectively. The total mass loss rates, bulk temperatures, and maximum temperatures were distinctively higher at higher powers. However, the maximum mass loss rate (0.005 s-1), the highest yields of liquid product (53%), and the minimum yields of residual solid samples (43.83%) were obtained at 500 W. Compared with conventional pyrolysis, microwave pyrolysis exhibited significantly different behaviour with faster reaction rates, which can decrease the decomposition temperatures of both natural and synthetic rubber by approximately 110 °C-140 °C.
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Zhanlong
authors: Z
authors: Song
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Yaqing
authors: Y
authors: Yang
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Long
authors: L
authors: Zhou
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Xiqiang
authors: X
authors: Zhao
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Wenlong
authors: W
authors: Wang
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Yanpeng
authors: Y
authors: Mao
authors: National Engineering Laboratory for Coal-fired Pollutants Emission Reduction, Shandong University, Jinan, China.
authors: Chunyuan
authors: C
authors: Ma
mesh_terms: D004867:Equipment Design; D006358:Hot Temperature; D008872:Microwaves; D011208:Powders; D012037:Refuse Disposal; D012408:Rubber; D013818:Thermogravimetry / Q000295:instrumentation / Q000379:methods*; D014866:Waste Products / Q000032:analysis
chemical_list: D011208:Powders; D014866:Waste Products; D012408:Rubber
keywords: Tyre powder; conventional pyrolysis; microwave pyrolysis; microwave thermogravimetric analysis; product yields