Yields and the selected physicochemical properties of thermobitumen as an intermediate product of the pyrolysis of Kukersite oil shale

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dc.authoridJarvik, Oliver/0000-0001-8530-2582
dc.contributor.authorAstra, Hanna-Liina
dc.contributor.authorAlbert, Tiina
dc.contributor.authorMozaffari, Sepehr
dc.contributor.authorJarvik, Oliver
dc.contributor.authorYanchilin, Alexey
dc.contributor.authorKamenev, Sven
dc.contributor.authorKaragoz, Selhan
dc.date.accessioned2024-09-29T16:07:57Z
dc.date.available2024-09-29T16:07:57Z
dc.date.issued2021
dc.departmentKarabük Üniversitesien_US
dc.description.abstractIn the pyrolytic decomposition of kerogen, a macromolecular cross-linked material ofoil shale, the formation of thermobitumen is often considered an important intermediate step in pyrolysis modelling. The authors' literature review indicated that information regarding the yield of thermobitumen from Kukersite oil shale was somewhat contradictory, and data on physicalthermodynamic properties, which is to be used in engineering calculations, was limited. Therefore the present work provides further information on thermobitumen yield levels and properties, along with empirical correlations, which serve to link together pyrolysis temperature, time, and/or selected properties (molecular weight, H/C, density, refractive index, and heat capacity). No information can be found on the last three properties for thermobitumens, derived from either Kukersite oil shale or other oil shale. The paper contributes to the topic by presenting information under conditions in which volatile pyrolytic products (oil and water) were removed from a pyrolysis system by an inert gas flow. So far, the formation of thermobitumen in Kukersite oil shale pyrolysis has been studied in either closed or open systems with no inert gas flow. To further generalise the results, the article also presents some comparisons with Green River formation oil shale thermobitumens, which were produced under similar conditions.en_US
dc.description.sponsorshipNational R&D program Energy'' [AR10129]; Estonian Ministry of Education and Research [SF0140022s10]; Estonian Science Foundation [9297, 7222, 5632]en_US
dc.description.sponsorshipSupport for the study was provided by the National R&D program Energy'' under the Project AR10129 Examination of the Thermodynamic Properties of Relevance to the Future of the Oil Shale Industry'' (P.I. V. Oja). The authors also acknowledge earlier financial supports provided by the Estonian Ministry of Education and Research, under target financing SF0140022s10 (P.I. V. Oja), and under the Estonian Science Foundation Grants 9297, 7222 and 5632 (P.I. V. Oja). The authors are very grateful to Einart Lindaru, Ilme Rohtla, Dr. Rivo Rannaveski, Dr. Zachariah S. Baird, Dr. Natalja Savest and Dr. Jelena Hruljova for their helpful advice, and for helping with thermobitumen characterization measurements or editorial comments.en_US
dc.identifier.doi10.3176/oil.2021.4.02
dc.identifier.endpage316en_US
dc.identifier.issn0208-189X
dc.identifier.issn1736-7492
dc.identifier.issue4en_US
dc.identifier.scopus2-s2.0-85123030926en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage295en_US
dc.identifier.urihttps://doi.org/10.3176/oil.2021.4.02
dc.identifier.urihttps://hdl.handle.net/20.500.14619/7272
dc.identifier.volume38en_US
dc.identifier.wosWOS:000720338500002en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherEstonian Acad Publishersen_US
dc.relation.ispartofOil Shaleen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectthermobitumenen_US
dc.subjectmolecular weighten_US
dc.subjectdensityen_US
dc.subjectrefractive indexen_US
dc.subjecthydrogen-carbon ratioen_US
dc.subjectheat capacityen_US
dc.titleYields and the selected physicochemical properties of thermobitumen as an intermediate product of the pyrolysis of Kukersite oil shaleen_US
dc.typeArticleen_US

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