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- W2049108679 abstract "Abstract A 28.4 wt% slurry of Illinois No. 6 coal in Wilsonville recycle solvent containing 0.83% of 1-14C-tetralin as a tracer for hydroaromatic solvent components has been hydroliquefied in a bench-scale, continuous-flow system under simulated SRC-I conditions (454 °C dissolver outlet; 13.9 MPa H2). A combination of solvent fractionation, distillation, g.l.p.c. separation, and radio-assay procedures allow determination of the chemical fate of the labelled tetralin. Of the tetralin which is consumed (47 wt% of the feed), only 85% is converted to the ‘ideal’ dehydrogenation product, naphthalene. The remaining 15% is divided in a 1:2 ratio between conversion to structurally altered C9–C11 hydrocarbons (l-methylindane, indane, methylnaphthalene) and bonding to much heavier coal- and solvent-derived products. These side reactions would be expected to decrease both the solvent donor quality and the inventory. Although the mechanisms for grafting of tetralin-derived fragments to heavy materials cannot yet be described in detail, the chemical processes responsible must be quite indiscriminant towards functional groups because the specific radioactivities of the oils, the asphaltenes, the preasphaltenes, and even the insoluble organic matter are very similar." @default.
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- W2049108679 date "1982-04-01" @default.
- W2049108679 modified "2023-09-27" @default.
- W2049108679 title "Carbon-14 tracer study of the fate of tetralin under simulated SRC-1 coal liquefaction conditions☆" @default.
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- W2049108679 doi "https://doi.org/10.1016/0016-2361(82)90044-8" @default.
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