Low temperature extractability and solvent swelling of Turkish lignites

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dc.contributor.authorOnal, Y
dc.contributor.authorCeylan, K
dc.date.accessioned2024-08-04T20:11:54Z
dc.date.available2024-08-04T20:11:54Z
dc.date.issued1997
dc.departmentİnönü Üniversitesien_US
dc.description.abstractSix Turkish lignites have been pretreated with the solutions of HCl or sodium ethanolate at room temperature or at 150 degrees C. The volumetric swelling of the raw or pretreated lignites have been investigated by using 13 solvents at room temperature. These lignites have been subjected to Soxhlet extractions in the same solvents and in the linear alkylamines. The solubility of the samples in toluene under supercritical conditions were also tested. The effect of solvent on swelling ratio and on the extraction yields of the raw or pretreated lignites have been examined. The results have indicated that both swelling and extraction yields generally increased after the pretreatments and the increments are higher with hydrogen bonding solvents. Especially, sodium ethanolate pretreatment increases the solubility in toluene under supercritical conditions, The results suggest that solvent solubility parameter and electron donor number are effective in both swelling and solubility. A qualitative information regarding the structural characteristics of extracts was obtained by UV and NMR analysis. (C) 1997 Elsevier Science B.V.en_US
dc.identifier.doi10.1016/S0378-3820(97)00038-6
dc.identifier.endpage97en_US
dc.identifier.issn0378-3820
dc.identifier.issue1-2en_US
dc.identifier.scopus2-s2.0-0031277903en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage81en_US
dc.identifier.urihttps://doi.org/10.1016/S0378-3820(97)00038-6
dc.identifier.urihttps://hdl.handle.net/11616/93088
dc.identifier.volume53en_US
dc.identifier.wosWOS:000071802600007en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Science Bven_US
dc.relation.ispartofFuel Processing Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectligniteen_US
dc.subjectswellingen_US
dc.subjectsolubilityen_US
dc.titleLow temperature extractability and solvent swelling of Turkish lignitesen_US
dc.typeArticleen_US

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