Enrichment and identification of cyclized hopanoids from Shengli lignite

Fourteen cyclized hopanoids, including hydrobenzohopanes, benzohopanes, and rearranged benzohopanes, were enriched from Shengli lignite via fractional extraction and preparative medium-pressure liquid chromatography. Their structures were tentatively identified by gas chromatography/mass spectrometr...

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Bibliographic Details
Published in:Fuel processing technology 2015-06, Vol.134, p.399-403
Main Authors: Cong, Xing-Shun, Zong, Zhi-Min, Li, Min, Gao, Li, Wei, Zhe-Hao, Li, Yan, Fan, Xing, Zhou, Yin, Wei, Xian-Yong
Format: Article
Language:English
Subjects:
Enrichment
Extraction
Fuels
Gas chromatography
Lignite
Liquid chromatography
Mass spectrometry
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Summary:Fourteen cyclized hopanoids, including hydrobenzohopanes, benzohopanes, and rearranged benzohopanes, were enriched from Shengli lignite via fractional extraction and preparative medium-pressure liquid chromatography. Their structures were tentatively identified by gas chromatography/mass spectrometry. Rearranged benzohopanes, which were unreported before, are probably produced from the corresponding benzohopanes via methyl rearrangement reaction.
ISSN:0378-3820
DOI:10.1016/j.fuproc.2015.02.022