Сверхкритические флюиды. Теория и практика
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2017, N1, pp. 80-92

O.N. Fedyaeva, V.R. Antipenko, A.A. Vostrikov

Peculiarities of Hydrocarbon and Heteroatomic Substances Composition Obtained at Conversion of Kashpir Oil Shale in Supercritical Water

The composition of oily fractions (OFs) formed by the Kashpir oil shale conversion in a flow of water vapor and supercritical water under uniform heating from 300 to 550 °C is studied by means of gas-chromatography/mass-spectrometry, IR and 1H NMR spectroscopy. A maximum yield of oil fraction is observed at 360–390 °C. Alkanes, alkenes, alkyl-derivatives of naphthalene and benzothiophene are the major components of OFs formed below 440 °C. A significant predominance of even alkanes and alkenes over their odd homologies is detected above 440 °C. The peculiarities in the varying of the content of specific groups and individual polyaromatic substances are discussed.

Key words: oil shale, supercritical water, even/odd ratio, alkanes, alkenes, polyaromatic hydrocarbons, benzo- and dibenzothiophenes

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