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Enrichment and identification aromatics from thermally dissolved Xinjiang changyan coal in toluene/ethanol

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In order to efficiently use Xinjiang changyan coal (XCC), thermal dissolution (TD) of XCC was carried out in a mixed solvent of toluene/ethanol, and the dissolved matters were further separated with medium-pressure liquid chromatography (MPLC). Seventy-three aromatics including 25 one-benzene-ring aromatics, 39 two-benzene-ring aromatics, and 9 three-benzene-ring aromatics were enriched and then analyzed with gas chromatography/mass spectrometry (GC/MS). The isolation and analysis of these high-valued aromatics could provide an important theoretical basis for non-fuel use of low-rank coals.
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Keywords: Aromatics; GC/MS analysis; Xinjiang changyan coal; enrichment; identification; medium-pressure liquid chromatography; thermal dissolution

Document Type: Research Article

Affiliations: School of Chemical Engineering and Technology, Xuzhou University of Technology, Xuzhou, Jiangsu, China

Publication date: August 3, 2017

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