Reaction Pathways during Coprocessing. Reaction of Illinois No. 6 and Wyodak Coals with Lloydminster and Hondo Residua under Mild Conditions

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dc.authorscopusid7003977585
dc.authorscopusid7006906263
dc.contributor.authorCeylan K.
dc.contributor.authorStock L.M.
dc.date.accessioned2024-08-04T19:59:32Z
dc.date.available2024-08-04T19:59:32Z
dc.date.issued1991
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIllinois No. 6 and Wyodak coals were coprocessed with Lloydminster and Hondo residua. The reactions were carried out in argon or in dideuterium with and without a catalyst at 400 °C for 1 h. The coal conversions under these mild conditions ranged from 40 to 56 %. Wyodak coal and Lloydminster residuum provided the highest coal conversion in uncatalyzed reactions. Spectroscopic evidence indicated that coal fragments appeared in the oil fraction at short reaction times but that they were much more abundant in the asphaltene fraction. An analysis of the results implies that coprocessing is essentially a stepwise process in which coals are degraded to asphaltenes and then to oils via hydrogen atom transfer and carbon-carbon bond fragmentation processes as well as deoxygenation reactions. Adduction reactions of the aliphatic residua and the aromatic coal occur simultaneously. The reactivity of the coal, in particular its capacity to initiate free-radical chain reactions and to donate hydrogen atoms, appears to play a key role in this chemistry. © 1991, American Chemical Society. All rights reserved.en_US
dc.identifier.doi10.1021/ef00027a021
dc.identifier.endpage487en_US
dc.identifier.issn0887-0624
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-0026152705en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage482en_US
dc.identifier.urihttps://doi.org/10.1021/ef00027a021
dc.identifier.urihttps://hdl.handle.net/11616/90712
dc.identifier.volume5en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofEnergy and Fuelsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChemcial Reaction--Assoicationen_US
dc.subjectCoal--Phase Equilibriaen_US
dc.subjectExtraction--Reaction Kineticsen_US
dc.subjectSolvents--Effectsen_US
dc.subjectAssociative Equilibriaen_US
dc.subjectCoal Ranken_US
dc.subjectHigh Volatile Bituminous Coalen_US
dc.subjectPyridine Extractabilityen_US
dc.subjectSolvent Induced Associatonen_US
dc.subjectLigniteen_US
dc.titleReaction Pathways during Coprocessing. Reaction of Illinois No. 6 and Wyodak Coals with Lloydminster and Hondo Residua under Mild Conditionsen_US
dc.typeArticleen_US

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