Pyrolysis characteristic and mechanism of waste tyre: A thermogravimetry-mass spectrometry analysis
Pyrolysis characteristic and mechanism of waste tyre: A thermogravimetry-mass spectrometry analysis
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废旧轮胎热解特性及机理：热重-质谱分析
DOI：
10.1016/j.jaap.2017.12.016
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发表时间：
2018-01-01
影响因子：
6
通讯作者：
Xing, Futang
中科院分区：
文献类型：
--
作者：
Han, Jun;Li, Wei;Xing, Futang
在这项研究中，用热重分析仪与质谱仪（MS）相结合研究了废物轮胎热解的特性。同时，残基char表面的官能团还以傅立叶变换红外（FTIR）光谱仪为特征。从轮胎热解过程中进化的气体的主要成分是H2O，CO，CO2和碳氢化合物。根据MS和热重（TG）曲线，轮胎热解可以分为四个阶段。第一阶段是由于温度低于320度的水蒸气和增塑剂分解引起的。次级阶段归因于320-400度C的天然橡胶分解，第三阶段与合成橡胶的分解有关，合成橡胶的分解是在400-520级的C. Chriiation C. C. C. C. C. C.的四个分析中发生的。也证明了上述假设。
In this study, waste tyre pyrolysis characteristic was investigated by a thermogravimetric analyzer combined with a mass spectrometer (MS). At the same time, the functional groups at the surface of residue char were also characterized by a Fourier-transform infrared (FTIR) spectrometer. The main components of the gas evolved from tyre pyrolysis process were H2O, CO, CO2, and hydrocarbon. According to MS and thermogravimetric (TG) curves, tyre pyrolysis could be divided into four stages. The first stage was due to water vaporization and plasticizer decomposition at the temperature below 320 degrees C. The secondary stage was attributed to natural rubber decomposition at 320-400 degrees C, and the third stage was related to the decomposition of synthetic rubber, which took place at 400-520 degrees C. The fourth stage was occurred above 520 degrees C. The variation of the functional groups on the residue char analyzed by FTIR also proved the above assumption.