Characterization of dissolution products from two turkish lignites by 1H NMR, IR and GC techniques

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dc.authorscopusid7003977585
dc.contributor.authorCeylan K.
dc.date.accessioned2024-08-04T19:59:32Z
dc.date.available2024-08-04T19:59:32Z
dc.date.issued1991
dc.departmentİnönü Üniversitesien_US
dc.description.abstractSome structural features of the dissolution products from two Turkish lignites (Beypazari and Tuncbilek lignites) have been investigated with proton nuclear magnetic resonance and infra-red spectroscopies and gas chromatography. The results indicate that, in general, no substantial changes occur in the structural characteristics of the soluble products obtained from different extraction conditions. This is true especially for preasphaltene and asphaltene fractions. On the other hand, some structural differences were observed in the compositions of oil fractions, especially in the neutral fraction of oils from the different experimental conditions. The neutral oils from the low temperature and short time extractions are mainly consisted of alkylated aromatics and include a very small quantity of longer chain paraffins. Whereas, the oils from the extractions at high temperatures and longer times, include several long straight-chain paraffins (C15 - C32) with higher quantity. Hydrogen atmosphere is moderately effective for deoxygenation of the products. Dealkylation reactions for smaller molecules are insignificant but hydrogen atmosphere is relatively effective for the dealkylation of larger molecules. Higher temperature and longer extraction period accelerate the liquid phase pyrolysis. © 1991, Taylor & Francis Group, LLC. All rights reserved.en_US
dc.identifier.doi10.1080/08843759108942282
dc.identifier.endpage536en_US
dc.identifier.issn0884-3759
dc.identifier.issue5en_US
dc.identifier.scopus2-s2.0-0025843825en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage507en_US
dc.identifier.urihttps://doi.org/10.1080/08843759108942282
dc.identifier.urihttps://hdl.handle.net/11616/90709
dc.identifier.volume9en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofFuel Science and Technology Internationalen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectChromatographic Analysis--Gasen_US
dc.subjectLiquid Fuels--Characterizationen_US
dc.subjectNuclear Magnetic Resonanceen_US
dc.subjectSpectroscopy, Infrareden_US
dc.subjectThermal Effectsen_US
dc.subjectBeypazari Lignitesen_US
dc.subjectDissolution Productsen_US
dc.subjectTuncbilek Lignitesen_US
dc.subjectTurkish Lignitesen_US
dc.subjectLigniteen_US
dc.titleCharacterization of dissolution products from two turkish lignites by 1H NMR, IR and GC techniquesen_US
dc.typeArticleen_US

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