Low-temperature chemical looping oxidation of hydrogen for space heating

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dc.authoridERDOGAN, AHMET/0000-0001-8349-0006
dc.authoridGulec, Fatih/0000-0001-9045-4281
dc.authoridClough, Peter/0000-0003-1820-0484
dc.authorwosidSnape, Colin Edward/KIJ-3106-2024
dc.authorwosidOkolie, Jude/GPX-8948-2022
dc.authorwosidERDOGAN, AHMET/AAT-4506-2021
dc.authorwosidClough, Peter/N-3185-2018
dc.contributor.authorGulec, Fatih
dc.contributor.authorOkolie, Jude A.
dc.contributor.authorClough, Peter T.
dc.contributor.authorErdogan, Ahmet
dc.contributor.authorMeredith, Will
dc.contributor.authorSnape, Colin E.
dc.date.accessioned2024-08-04T20:54:36Z
dc.date.available2024-08-04T20:54:36Z
dc.date.issued2023
dc.departmentİnönü Üniversitesien_US
dc.description.abstractChemical looping combustion (CLC) is an advanced combustion process in which the combustion reaction splits into two parts; in the first reaction metal oxides are used as oxygen suppliers for fuel combustion and then in the second reaction, reduced metal oxides are re-oxidised in an air reactor. Although this technology could be applicable for the safe implication of low-temperature oxidation of hydrogen, there is limited understanding of oxygen carrier reduction stages and the oxidation mechanism of hydrogen throughout the process. The novelty of this research lies in its pioneering investigation of low-temperature oxidation of hydrogen through chemical looping technology as a safe and alternative heating system, using three distinct metal oxide oxygen carriers: CuO, Co3O4, and Mn2O3. The oxidation of hydrogen over these oxygen carriers was comprehensively studied in a fixed-bed reactor operating at 200-450 degrees C. XRD analysis demonstrates that CuO directly reduced to metallic Cu at 200-450 degrees C, instead of following a sequential reduction step CuO & RARR;Cu4O3 & RARR;Cu2O & RARR;Cu throughout the temperature. Co3O4 was reduced to a mixture CoO and Co at 450 degrees C, which may refer to a sequential reduction step Co3O4 & RARR;CoO & RARR;Co with increasing the temperature. Decreasing the reduction temperature led to an elevation in CoO formation. Mn2O3 can also reduce to a mixture of Mn3O4 and MnO at temperatures between 250 and 400 degrees C. Compared to temperature, the increase in the residence time did not show any further reduction in Mn2O3. SEM results showed that most of the metal oxide particles were evenly dispersed on the supports. Based on the experimental results, a potential reduction stage of CuO, Co3O4 and Mn2O3 was proposed for low-temperature hydrogen oxidation, which could be a potential application for space heating using safe hydrogen combustion.en_US
dc.description.sponsorshipUniversity of Nottinghamen_US
dc.description.sponsorshipThis research was funded and supported by University of Nottingham under FPVC Research Acceleration Fund and Advanced Materials Research Group (AMRG) Early Career Researcher Collaboration Fund. The authors also thank the Nanoscale and Microscale Research Centre (nmRC) for providing access to SEM instrumentation.en_US
dc.identifier.doi10.1016/j.joei.2023.101355
dc.identifier.issn1743-9671
dc.identifier.issn1746-0220
dc.identifier.scopus2-s2.0-85166639814en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.joei.2023.101355
dc.identifier.urihttps://hdl.handle.net/11616/101498
dc.identifier.volume110en_US
dc.identifier.wosWOS:001051625800001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofJournal of The Energy Instituteen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAdvanced combustionen_US
dc.subjectChemical looping combustion (CLC)en_US
dc.subjectHydrogenen_US
dc.subjectOxygen carriersen_US
dc.titleLow-temperature chemical looping oxidation of hydrogen for space heatingen_US
dc.typeArticleen_US

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