光离子化
热重分析
质谱法
同步辐射
分析化学(期刊)
化学
热解
反射型
质谱
同步加速器
材料科学
光学
飞行时间质谱
电离
环境化学
离子
有机化学
物理
无机化学
色谱法
作者
Zhongyue Zhou,Hanfeng Jin,Long Zhao,Yizun Wang,Wu Wen,Jiuzhong Yang,Yuyang Li,Yang Pan,Fei Qi
标识
DOI:10.1016/j.proci.2016.06.081
摘要
As pyrolysis is the initial step involved in thermochemical processes of biomass, understanding of the pyrolytic behavior of biomass is crucial to biomass thermochemical conversions. This work presents a new facility for studying the pyrolysis behavior of solid fuels. The experimental setup contains a thermogravimetry system connected with a home-made reflectron time-of-flight mass spectrometer via a single-stage molecular beam sampling interface, and a tunable vacuum ultraviolet (VUV) light generated from synchrotron source is used for soft photoionization. Evolution of the gaseous products of pine wood pyrolysis was examined at a heating rate of 20°C/min in a nitrogen environment at atmospheric pressure. Experiments were performed at the photon energies of 10.0, 10.5 and 11.0 eV, and mass spectra of gaseous products were recorded by the time-of-flight mass analyzer every five seconds. Species with the mass range of m/z 20–220 are presented and possible formation pathways of typical products are discussed.
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