A Novel Process for the Containment of SO2 Emissions from Class C Fly Ash in the Fired Materials by Haüyne Formation

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dc.contributor.authorSokolář, Radomírcs
dc.contributor.authorNguyen, Martincs
dc.coverage.issue19cs
dc.coverage.volume15cs
dc.date.issued2022-09-27cs
dc.description.abstractClass C fly ash has been receiving increasing attention due to the gradual transition of thermal power plants all over the world to the fluidized bed combustion technology with sulfur dioxide emissions capture. This research investigates the utilization of class C fly ash in fired ceramic materials with simultaneous efficient and novel containment of sulfur dioxide emissions in the flue gas during firing. A number of experiments were conducted by addition of sodium water glass with different molar ratios of SiO2:Na2O, sodium carbonate, and different ratios of sodium carbonate to water glass to the class C fly ash to examine the optimal combination and quantity for the creation and formation of the mineral phase haüyne which resulted in reduction and containment of SO2 emissions. Results revealed that a 12% dose of sodium water glass with a low molar ratio of 1.7 (SiO2:Na2O) combined with class C fly ash was more effective in the formation of haüyne and the resulting decrease of SO2 in the flue gas was more substantial. The newly formed mineral phase haüyne was identified by an X-ray diffraction analysis and scanning electron microscopy with energy dispersive X-ray spectroscopy. Outcomes reveal a potential for utilization of class C fly ash in the fired materials by containment of sulfur dioxide into their structure.en
dc.formattextcs
dc.format.extent13cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationMaterials . 2022, vol. 15, issue 19, 13 p.en
dc.identifier.doi10.3390/ma15196701cs
dc.identifier.issn1996-1944cs
dc.identifier.orcid0000-0001-6913-2018cs
dc.identifier.orcid0000-0003-1321-2785cs
dc.identifier.other179321cs
dc.identifier.researcheridACI-9142-2022cs
dc.identifier.researcheridAAQ-4131-2020cs
dc.identifier.scopus15066105400cs
dc.identifier.scopus57203352861cs
dc.identifier.urihttp://hdl.handle.net/11012/208689
dc.language.isoencs
dc.publisherMDPIcs
dc.relation.ispartofMaterialscs
dc.relation.urihttps://www.mdpi.com/1996-1944/15/19/6701cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/1996-1944/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectfly ashen
dc.subjectceramic bodyen
dc.subjectfiringen
dc.subjectsulfur dioxide emissionsen
dc.subjecthaüyneen
dc.titleA Novel Process for the Containment of SO2 Emissions from Class C Fly Ash in the Fired Materials by Haüyne Formationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-179321en
sync.item.dbtypeVAVen
sync.item.insts2025.02.03 15:46:01en
sync.item.modts2025.01.17 15:19:25en
thesis.grantorVysoké učení technické v Brně. Fakulta stavební. Ústav technologie stavebních hmot a dílcůcs
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