Comparison of the electrochemical decarbonation of different-grade limestones used in cement manufacturing

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dc.contributor.authorRamirez-Amaya, Dario
dc.contributor.authorDreyse, Paulina
dc.contributor.authorMartinez, Natalia P.
dc.contributor.authorTroncoso, Felipe
dc.contributor.authorNavarrete, Ivan
dc.contributor.authorNoel, Martin
dc.contributor.authorCanales, Roberto I.
dc.contributor.authorGonzalez, Marcelo
dc.date.accessioned2025-01-20T17:34:10Z
dc.date.available2025-01-20T17:34:10Z
dc.date.issued2023
dc.description.abstractElectrochemical decarbonation (ED) of CaCO3 is a promising method to reduce CO2 emissions from limestone calcination for cement manufacturing. Most cement plants are located near accessible deposits of limestone; therefore, the feasibility of ED deployment depends on the efficiency of natural limestone decarbonation, which has variable CaCO3 content. Accordingly, this research compares the ED efficiency of different limestones (CaCO3 content between 84 % and 68 %) and the chemical and physical characteristics of precipitate materials (PM) obtained from this process. The obtained PMs were comprised mainly of Ca(OH)(2) (similar to 59 %) and had similar particle size distributions. At the same time, the efficiency of Ca(OH)(2) precipitation, energy consumption, and CaO recovery were comparable to the ED of a pure CaCO3 reagent (>99 %). The PMs were found to have higher CaO content and lower loss on ignition than the feedstock material, independent of the type of limestone, facilitating the future ED implementation in cement manufacturing.
dc.fuente.origenWOS
dc.identifier.doi10.1016/j.cemconres.2023.107307
dc.identifier.eissn1873-3948
dc.identifier.issn0008-8846
dc.identifier.urihttps://doi.org/10.1016/j.cemconres.2023.107307
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/91653
dc.identifier.wosidWOS:001072194300001
dc.language.isoen
dc.revistaCement and concrete research
dc.rightsacceso restringido
dc.subjectCalcium hydroxide
dc.subjectCement
dc.subjectElectrochemical decarbonation
dc.subjectElectrolysis
dc.subjectLimestone
dc.subjectRaw material
dc.subject.ods12 Responsible Consumption and Production
dc.subject.odspa12 Producción y consumo responsable
dc.titleComparison of the electrochemical decarbonation of different-grade limestones used in cement manufacturing
dc.typeartículo
dc.volumen174
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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