Pyrolysis of waste materials using TGA-MS and TGA-FTIR as complementary characterisation techniques
Pyrolysis of waste materials using TGA-MS and TGA-FTIR as complementary characterisation techniques
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DOI：
10.1016/j.jaap.2011.11.011
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发表时间：
2012-03-01
影响因子：
6
通讯作者：
Williams, Paul T.
中科院分区：
文献类型：
--
作者：
Singh, Surjit;Wu, Chunfei;Williams, Paul T.
利用两台热重分析仪（TGA）对废弃物、生物质木材废料、废轮胎、垃圾衍生燃料（RDF）和废塑料进行了热解。一个TGA与质谱仪（MS）耦合，另一个与红外光谱仪（FTIR）耦合。使用基于一级反应的活化能分布的模型，对TGA-MS和TGA-FTIR获得的热解废物材料的动力学参数进行了比较。对热降解（TGA）产生的挥发性物质以及随后通过MS和FTIR光谱进行的表征进行了进一步比较。一级反应途径和随后的活化能计算从差热重数据之间的TGA-MS和TGA-FTIR表现出良好的重复性。TGA-MS和TGA-FTIR产生了广泛的定性数据，表征了热解的废物材料的挥发性气体馏分。TGA-MS和TGA-FTIR被证明是有价值的技术，在证实各自的热谱图和光谱图的挥发性物种在热解过程中的废物材料。然而，这两种技术都容易受到干扰，需要仔细解释产生的光谱。(C)2011 Elsevier B. V.保留所有权利。
Pyrolysis of waste materials, biomass wood waste, waste tyre, refuse derived fuel (RDF) and waste plastic was performed using two thermogravimetric analysers (TGA). One TGA was coupled to a mass spectrometer (MS) and the other to an infrared spectrometer (FTIR). The kinetic parameters of the pyrolysed waste materials obtained for TGA-MS and TGA-FTIR were compared using a model based on first-order reactions with a distribution of the activation energies. A further comparison of the volatile species evolved by thermal degradation (TGA) and the subsequent characterisation by the MS and FTIR spectra was performed. The first-order reaction pathways and subsequent activation energies calculated from the differential TGA data presented good repeatability between the TGA-MS and TGA-FTIR. The TGA-MS and TGA-FTIR produced a broad spectrum of qualitative data characterising the volatile gaseous fraction of the waste materials pyrolysed. TGA-MS and TGA-FTIR are shown to be valuable techniques in corroborating the respective thermograms and spectrograms of the volatile species evolved during the pyrolysis of waste materials. However both techniques are prone to interference and careful interpretation of the spectra produced is required. (C) 2011 Elsevier B.V. All rights reserved.