Chromatography/mass spectrometry (GS/MS) was used to study toluene-soluble (TS) and pyridine-soluble (PS) fractions obtained from coal liquefaction residue by solvent extraction. It was found that the toluene-soluble fraction, containing mainly polycyclic aromatic hydrocarbons with 2-4 rings, is a good feedstock for making needle coke. The pyridine-soluble fraction cannot be used for these purposes because it contains more aromatic hydrocarbons with 5 or more rings. The composition of the studied samples determines their different behavior in carbonization (coking).
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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 5, pp. 11 – 14, September – October, 2012.
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Cheng, X., Li, G., Peng, Y. et al. Obtaining needle coke from coal liquefaction residue. Chem Technol Fuels Oils 48, 349–355 (2012). https://doi.org/10.1007/s10553-012-0379-3
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DOI: https://doi.org/10.1007/s10553-012-0379-3