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- W1978572516 abstract "Abstract Point-of-Ayr coal was co-processed with five different petroleum residues under a variety of conditions in tubing bombs. In addition, a number of petroleum sub-fractions and hydrotreated fractions were co-processed with the coal to assess the influence of the various structural types on extraction yield. Feedstocks and liquid products were subjected to chemical fractionation followed by ultimate analysis, size exclusion chromatography and 1H nuclear magnetic resonance. Detailed analysis of the hydrotreated fractions indicates that under low severity conditions the aliphatic side chains are removed from the aromatics, whilst at higher severities this is followed by condensation of the aromatic units. Reasonable extraction yields were only obtained with the three most aromatic petroleum feedstocks and the most severely hydrotreated feeds. Coal extraction was found to correlate with the amount of pentane-insoluble aromatics in the solvent. The high yields obtained from experiments using anthracene oil as a third component indicate that the petroleum feedstocks contain significant amounts of hydrogen donors." @default.
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- W1978572516 date "1989-08-01" @default.
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- W1978572516 title "Characterization of petroleum feedstocks for coal-oil co-processing" @default.
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- W1978572516 doi "https://doi.org/10.1016/0016-2361(89)90058-6" @default.
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