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应用红外光谱研究脱灰对伊敏褐煤结构的影响

梁虎珍 王传格 曾凡桂 李美芬 相建华

梁虎珍, 王传格, 曾凡桂, 李美芬, 相建华. 应用红外光谱研究脱灰对伊敏褐煤结构的影响[J]. 燃料化学学报(中英文), 2014, 42(02): 129-137.
引用本文: 梁虎珍, 王传格, 曾凡桂, 李美芬, 相建华. 应用红外光谱研究脱灰对伊敏褐煤结构的影响[J]. 燃料化学学报(中英文), 2014, 42(02): 129-137.
LIANG Hu-zhen, WANG Chuan-ge, ZENG Fan-gui, LI Mei-fen, XIANG Jian-hua. Effect of demineralization on lignite structure from Yinmin coalfield by FT-IR investigation[J]. Journal of Fuel Chemistry and Technology, 2014, 42(02): 129-137.
Citation: LIANG Hu-zhen, WANG Chuan-ge, ZENG Fan-gui, LI Mei-fen, XIANG Jian-hua. Effect of demineralization on lignite structure from Yinmin coalfield by FT-IR investigation[J]. Journal of Fuel Chemistry and Technology, 2014, 42(02): 129-137.

应用红外光谱研究脱灰对伊敏褐煤结构的影响

基金项目: 国家自然科学基金(41302127,41372165,41072116,41102092)。
详细信息
    通讯作者:

    曾凡桂,Tel:0351-6010468,E-mail:zengfangui@tyut.edu.cn。梁虎珍(1974- ),女,山西介休人,讲师,硕士,研究方向为煤地球化学专业

  • 中图分类号: TQ529

Effect of demineralization on lignite structure from Yinmin coalfield by FT-IR investigation

  • 摘要: 对伊敏褐煤的原煤和脱灰煤进行了红外光谱分析,并通过分段分峰拟合分析了脱灰前后伊敏煤结构的变化。结果表明,脱灰处理对煤中有机结构会产生一定影响。对脂氢和羟基氢键有机结构影响较小,脱灰后,脂氢结构中CH2不对称伸缩振动没有变化,CH伸缩振动明显减少,而CH2对称伸缩振动和CH3不对称伸缩振动略有增加;羟基氢键结构中羟基N羟基、自缔合羟基氢键以及羟基π氢键的强度有所降低,而环氢键和羟基醚氢键的吸收强度有所增加;对芳香结构和含氧官能团的影响较大,芳香结构由原煤中的苯环三取代占主导地位转变为脱灰煤中的苯环三和四取代;含氧官能团中烷基醚和脂肪羧酸脱灰后吸收峰的强度明显减弱,这是由于水解反应导致的,而酚羟基和羧酸脱灰后吸收强度明显增强。
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出版历程
  • 收稿日期:  2013-06-13
  • 修回日期:  2013-11-06
  • 刊出日期:  2014-02-28

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