| 白石湖煤THF萃取物中硫、氮化合物赋存形态 |
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| 引用本文： | 刘敏,王永刚,赵鹏,曲思建,陈贵锋.白石湖煤THF萃取物中硫、氮化合物赋存形态[J].燃料化学学报,2019,47(3):257-262. |
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| 作者姓名： | 刘敏 王永刚 赵鹏 曲思建 陈贵锋 |
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| 作者单位： | 1. China University of Mining and Technology(Beijing), Beijing 100083, China;
2. China Coal Research Institute, Beijing 100013, China;
3. State Key Laboratory of Coal Mining and Clean Utilization, Beijing 100013, China |
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| 基金项目： | 北京市自然科学基金(2182090)和煤科院科技创新基金(2017JC01)资助 |
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| 摘 要： | 采用四氢呋喃(THF)对白石湖煤进行索氏萃取,萃取液在四氟硼酸银存在下与碘甲烷反应,转化成甲基磺酸盐。采用电喷雾电离(ESI)傅里叶变换离子回旋共振质谱(FT-ICR MS)对甲基硫盐和含氮化合物进行了表征,结合硫、氮化学发光检测器(GC-SCD和GC-NCD)分析,研究THF萃取物中硫、氮化合物形态。结果表明,THF萃取物中主要是S_1、S_2、N_1、N_1O_1类化合物,含量较高的硫、氮化合物分别是二苯并噻吩类化合物及咔唑类化合物。
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| 关 键 词： | 低阶煤 萃取 硫化物 氮化物 甲基衍生化 离子回旋共振质谱 |
| 收稿时间： | 2018-10-19 |
Molecular characterization of sulfur and nitrogen compounds in THF extract of Baishihu lignite |
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| LIU Min,WANG Yong-gang,ZHAO Peng,QU Si-jian,CHEN Gui-feng.Molecular characterization of sulfur and nitrogen compounds in THF extract of Baishihu lignite[J].Journal of Fuel Chemistry and Technology,2019,47(3):257-262. |
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| Authors: | LIU Min WANG Yong-gang ZHAO Peng QU Si-jian CHEN Gui-feng |
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| Abstract: | Baishihu lignite was subjected to Soxhlet extraction by tetrahydrofuran (THF). The extract was reacted with iodomethane in the presence of silver tetrafluoroborate and converted to methylsulfonium salts. The methylsulfonium salts and nitrogen compounds were characterized by electrospray ionization (ESI) and Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Combined with sulfur and nitrogen chemiluminescence detectors (GC-SCD and GC-NCD),the forms of sulfur and nitrogen compounds in THF extracts were studied. The results showed that S1, S2, N1 and N1O1 class species were identified in THF extract. The sulfur and nitrogen compounds were mostly dibenzothiophene and carbazole compounds. |
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| Keywords: | low rank coal extraction sulfide nitride methyl derivatization ion cyclotron resonance mass spectrometry |
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