| 煤镜质组热解的电子顺磁共振研究 |
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| 引用本文： | 殷春浩,赵强,滕道祥,李富强,神干,朱姗姗.煤镜质组热解的电子顺磁共振研究[J].波谱学杂志,2011,28(4):464-470. |
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| 作者姓名： | 殷春浩 赵强 滕道祥 李富强 神干 朱姗姗 |
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| 作者单位： | 1. 中国矿业大学 理学院, 江苏 徐州 221116； 2. 徐州工程学院 数理学院， 江苏 徐州 221000 |
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| 基金项目： | 江苏省高校自然科学研究计划资助项目(08KJD140004) |
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| 摘 要： | 基于煤燃烧和自燃研究在煤矿生产安全以及煤炭资源的高效利用等实际生产和生活中的重要性，探讨了煤岩显微组分镜质组在有氧条件下热解的自由基反应. 采用电子顺磁共振技术对煤镜质组在有氧条件下300 ℃~450 ℃的加热分解产物及未加热处理常温下的镜质组样品做电子顺磁共振研究，得到300 ℃、350 ℃、400 ℃、450 ℃时其产物在常温下（25 ℃）时的电子顺磁共振信号，并对随加热温度不同，信号的产生和变化原因做了分析，研究结果表明煤镜质组在加热过程中有顺磁中心的浓度和顺磁中心成分的改变，该文中把它归因于镜质组的不同有机成分在不同温度下分解产生的自由基.
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| 关 键 词： | 电子顺磁共振(EPR) 煤 镜质组 显微组分 自由基 |
| 收稿时间： | 2011-09-29 |
Coal Vitrinite Pyrolysis Studied by EPR |
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| YIN Chun-hao,ZHAO Qiang,TENG Dao-xiang,LI Fu-qiang,SHEN Gan,ZHU Shan-shan.Coal Vitrinite Pyrolysis Studied by EPR[J].Chinese Journal of Magnetic Resonance,2011,28(4):464-470. |
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| Authors: | YIN Chun-hao ZHAO Qiang TENG Dao-xiang LI Fu-qiang SHEN Gan ZHU Shan-shan |
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| Institution: | 1. College of Science, China University of Mining and Technology, Xuzhou 221116, China;;
2. Mathematics & Physical Science School, Xuzhou Institute of Technology, Xuzhou 221000, China |
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| Abstract: | Understanding coal combustion and spontaneous combustion are important for coal mine safety and high efficient utilization of coal resources. In this work, the free radical reactions of pyrolysed vitrinite under aerobic conditions were investigated. Vitrinite sample at normal temperature and heat decomposition products of vitrinite between 300 ℃ to 450 ℃ under aerobic condition were investigated by electron paramagnetic resonance (EPR). The EPR′s signals of the heat-decomposition products produced at 300 ℃, 350 ℃, 400 ℃ and 450 ℃ were collected at 25 ℃. Heating temperature-related changes in EPR signals were analyzed. It was found that the composition and concentration of paramagnetic centers changed with heating temperature, probably originated from that fact that different free radicals were produced from different organic components at different heating temperatures. |
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| Keywords: | electron paramagnetic resonance coal vitrinite maceral free radical |
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