Assessing the Technical Suitability of Precipitated Materials from the Electrochemical Decarbonation of Limestones for Cement and Hydrated Lime Production: A Reproducibility Study Performed in Canada and Chile

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dc.catalogadorgrr
dc.contributor.authorRamirez Amaya, Dario Alonso
dc.contributor.authorMahmood, Osamah
dc.contributor.authorNoël, Martin
dc.contributor.authorKavgic, Miroslava
dc.contributor.authorMartinez, Natalia P.
dc.contributor.authorTroncoso P., Felipe
dc.contributor.authorGazzano, Valeria
dc.contributor.authorDreyse, Paulina
dc.contributor.authorCanales Muñoz, Roberto
dc.contributor.authorGonzález, Marcelo
dc.date.accessioned2025-07-03T20:04:30Z
dc.date.available2025-07-03T20:04:30Z
dc.date.issued2025
dc.description.abstractConcrete is essential for most civil engineering applications, but its use faces pressing challenges to reduce CO2 emissions. These emissions are linked principally to the chains of cement production that calcinate limestones (CaCO3 → CaO þ CO2) for quicklime, hydrated lime, and clinker production. Electrochemical decarbonation is a novel technology with the potential to introduce synergistic strategies to mitigate CO2 emissions from this chemical reaction. However, its early incorporation in the current chains of cement and lime production requires evidence of the quality of materials produced by this technique under the broad conditions of the cement and lime industries worldwide. In this reproducibility study performed in Canada and Chile, multiple sources of limestone feedstock used for lime and cement production were subjected to an electrochemical decarbonation process to precipitate low-CO2 intermediary feedstock materials. The potential of the precipitate materials (PMs) as an intermediary for cement manufacturing and as a final hydrated lime product was assessed by contrasting the lime saturation factor, lime concentration, content of secondary oxides (MgO, K2O, and Na2O), and content of CO2 with those of theirprecursor limestones and the requirements established by the state of practice of these industries. Results showed that regardless of their origin, the obtained PMs mainly comprised calcium hydroxide [CaðOHÞ2 > 78.8% by mass], with increased lime concentration (CaO > 65.39%) and decreased other primary oxides (SiO2, Al2O3, and Fe2O3 < 1%) and carbon dioxide content (CO2 < 9.42% by mass). Several PMs had suitable chemical and physical characteristics to be considered directly for clinker and lime manufacturing, which is critical to the scalability of the electrochemical decarbonation process.
dc.format.extent13 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1061/JMCEE7.MTENG-19673
dc.identifier.eissn1943-5533
dc.identifier.issn0899-156
dc.identifier.urihttps://doi.org/10.1061/JMCEE7.MTENG-19673
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/104847
dc.information.autorucEscuela de Ingeniería; Ramirez Amaya, Dario Alonso; S/I; 1160697
dc.information.autorucEscuela de Ingeniería; Canales Muñoz, Roberto; 0000-0002-2535-6527; 1039369
dc.issue.numero9
dc.language.isoen
dc.nota.accesocontenido parcial
dc.revistaJournal of Materials on Civil Engineering
dc.rightsacceso restringido
dc.subjectCalcium hydroxide
dc.subjectCement
dc.subjectDecarbonization
dc.subjectElectrochemical decarbonation
dc.subjectElectrolysis
dc.subjectHydrated lime
dc.subjectLimestone
dc.subjectRaw material
dc.subject.ddc510
dc.subject.deweyMatemática física y químicaes_ES
dc.subject.ods
dc.subject.odspa
dc.titleAssessing the Technical Suitability of Precipitated Materials from the Electrochemical Decarbonation of Limestones for Cement and Hydrated Lime Production: A Reproducibility Study Performed in Canada and Chile
dc.typeartículo
dc.volumen37
sipa.codpersvinculados237610
sipa.codpersvinculados1160697
sipa.codpersvinculados1039369
sipa.trazabilidadORCID;2025-06-30
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