Demineralisation of lignites by single and successive pretreatment

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dc.authoridKaraca, Huseyin/0000-0002-0543-8947
dc.authorwosidKaraca, Huseyin/ABG-8103-2020
dc.contributor.authorKaraca, H
dc.contributor.authorÖnal, Y
dc.date.accessioned2024-08-04T20:13:19Z
dc.date.available2024-08-04T20:13:19Z
dc.date.issued2003
dc.departmentİnönü Üniversitesien_US
dc.description.abstractIn this study, two Turkish lignites (Bolu-Mengen, Kutahya-Tuncbilek) were treated under atmospheric and reflux conditions with 10-30% NaOH, 10% HCl and 10% H2SO4 solutions, singly and/or successive treatments to determine the effects of this treatment on the mineral matter and acidic functional groups. Characterisation of the treated and untreated samples was by Fourier transform infrared spectroscopy. The process of successive pretreatment was found to be more effective than single steps in terms of demineralisation and removal of carboxylate structures. During NaOH treatment, the first of successive steps, salts soluble in acid but not in water were determined. In successive demineralisation steps with 30% NaOH and 10% HCl, a low level of 3.3% ash was obtained for the Tuncbilek lignite. In addition, during the pretreatment, most of the Ca and K were exchanged with Na. (C) 2003 Elsevier Science Ltd. All rights reserved.en_US
dc.identifier.doi10.1016/S0016-2361(03)00069-3
dc.identifier.endpage1522en_US
dc.identifier.issn0016-2361
dc.identifier.issue12en_US
dc.identifier.scopus2-s2.0-0037879344en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage1517en_US
dc.identifier.urihttps://doi.org/10.1016/S0016-2361(03)00069-3
dc.identifier.urihttps://hdl.handle.net/11616/93537
dc.identifier.volume82en_US
dc.identifier.wosWOS:000183747700008en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofFuelen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectligniteen_US
dc.subjectpretreatmenten_US
dc.subjectdemineralisationen_US
dc.subjectfunctional groupsen_US
dc.titleDemineralisation of lignites by single and successive pretreatmenten_US
dc.typeArticleen_US

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