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- W2041128287 abstract "Pyrolysis of oil shales was carried out in a Fischer assay report. The oils obtained were separated into groups by preparative thin-layer of dry-column chromatography and the groups were analysed by gas chromatography. It is shown that on pyrolysis of oil shales, long hydrocarbon chains are eleminated from the cyclic nucleus of kerogen by two routes: (1) cleavage of the first bond (α-cleavage), resulting in paraffin formation, and (2) cleavage of the second bond (β-cleavage), resulting in 1-olefin formation. The alkyl chains of kerogen mostly contain an odd number of carbon atoms. In most instances, the composition of carbonyl-containing chains does not correlate with that of the paraffin chains. Heavy shale oil obtained by semi-coking of oil shales is an intermediate product of kerogen decomposition; by its subsequent pyrolysis the same paraffins and olefins are formed as by primary pyrolysis. It is assumed that the formation of paraffins and olefins by low-temperature pyrolysis proceeds via intramolecular hydrogen rearrangement with no formation of free radicals." @default.
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- W2041128287 date "1980-07-01" @default.
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- W2041128287 title "Investigation of aliphatic structures of oil shales by pyrolysis and chromatographic methods" @default.
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- W2041128287 doi "https://doi.org/10.1016/0165-2370(80)80046-5" @default.
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