Citation: 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. shu

Molecular characterization of sulfur and nitrogen compounds in THF extract of Baishihu lignite

LIU Min ^1,2,3,, ,
WANG Yong-gang ¹ ,
ZHAO Peng ^2,3 ,
QU Si-jian ^2,3 ,
CHEN Gui-feng ^2,3

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

Corresponding author: LIU Min, 78562115@qq.com
Received Date: 19 October 2018
Revised Date: 2 December 2018

Fund Project: This project was supported by the Beijing Natural Science Foundation (BJNSF2182090) and Science and Technology Innovation Fund of China Coal Research Institute(2017JC01)the Beijing Natural Science Foundation BJNSF2182090Science and Technology Innovation Fund of China Coal Research Institute 2017JC01

Figures(6)

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.
- low rank coal,
- extraction,
- sulfide,
- nitride,
- methyl derivatization,
- ion cyclotron resonance mass spectrometry
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