Kinetic rate models for dissolution of Turkish lignites in tetralin under nitrogen or hydrogen atmospheres

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dc.contributor.authorCeylan, K
dc.contributor.authorOlcay, A
dc.date.accessioned2024-08-04T20:11:58Z
dc.date.available2024-08-04T20:11:58Z
dc.date.issued1998
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe reaction kinetics of the dissolution of two Turkish lignites have been investigated. The dissolution products were separated into pseudo-components such as preasphaltenes, asphaltenes and oils by successive solvent extractions. Reaction mechanisms have been proposed and tested to estimate the rates of formation of these products. The proposed mechanisms are based on the assumptions that the reactions are irreversible, pseudo-first order with respect to the reacting species, and their rate constants obey linear Arrhenius behavior. The product distributions data have been assessed by a simple simulation program, The results indicated that certain simple kinetic models represent the data well and the prevailing mechanism changes slightly with temperature. The estimated energy of activation for dissolution changes from 54 kJ/gmol to 185 kJ/gmol depending on the lignite and the suggested reaction model. The results suggest that conversions of lignites to preasphaltenes and gases are slower than the conversion of preasphaltenes and asphaltenes to oils. Published by Elsevier Science B.V.en_US
dc.identifier.doi10.1016/S0378-3820(97)00054-4
dc.identifier.endpage195en_US
dc.identifier.issn0378-3820
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-0031996369en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage183en_US
dc.identifier.urihttps://doi.org/10.1016/S0378-3820(97)00054-4
dc.identifier.urihttps://hdl.handle.net/11616/93125
dc.identifier.volume53en_US
dc.identifier.wosWOS:000072632100002en_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.subjectliquefactionen_US
dc.subjectkineticsen_US
dc.titleKinetic rate models for dissolution of Turkish lignites in tetralin under nitrogen or hydrogen atmospheresen_US
dc.typeArticleen_US

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