Experimental Study on Mineral Dissolution and Carbonation Efficiency Applied to pH-Swing Mineral Carbonation for Improved CO2 Sequestration

Página do item simplificado
dc.contributor.authorGalina, Natália R. [UNESP]
dc.contributor.authorArce, Gretta L. A. F. [UNESP]
dc.contributor.authorMaroto-Valer, Mercedes
dc.contributor.authorÁvila, Ivonete [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionHeriot-Watt University
dc.date.accessioned2023-07-29T16:08:14Z
dc.date.available2023-07-29T16:08:14Z
dc.date.issued2023-03-01
dc.description.abstractMineral carbonation incurs high operating costs, as large amounts of chemicals and energy must be used in the process. Its implementation on an industrial scale requires reducing expenditures on chemicals and energy consumption. Thus, this work aimed to investigate the significant factors involved in pH-swing mineral carbonation and their effects on CO2 capture efficiency. A central composite rotatable design (CCRD) was employed for optimizing the operational parameters of the acid dissolution of serpentinite. The results showed that temperature exerts a significant effect on magnesium dissolution. By adjusting the reaction temperature to 100 °C and setting the hydrochloric acid concentration to 2.5 molar, 96% magnesium extraction was achieved within 120 min of the reaction and 91% within 30 min of the reaction. The optimal efficiency of carbon dioxide capture was 40–50%, at higher values than those found in literature, and 90% at 150 bar and high pressures. It was found that it is technically possible to reduce the reaction time to 30 min and maintain magnesium extraction levels above 90% through the present carbonation experiments.en
dc.description.affiliationLaboratory of Combustion and Carbon Capture (LC3) Department of Energy and Chemistry School of Engineering UNESP—São Paulo State University, Av. Dr. Ariberto Pereira da Cunha, 333, SP
dc.description.affiliationResearch Centre for Carbon Solutions (RCCS) School of Engineering & Physical Sciences Heriot-Watt University
dc.description.affiliationUnespLaboratory of Combustion and Carbon Capture (LC3) Department of Energy and Chemistry School of Engineering UNESP—São Paulo State University, Av. Dr. Ariberto Pereira da Cunha, 333, SP
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipIdFAPESP: 2016 /15749-5
dc.identifierhttp://dx.doi.org/10.3390/en16052449
dc.identifier.citationEnergies, v. 16, n. 5, 2023.
dc.identifier.doi10.3390/en16052449
dc.identifier.issn1996-1073
dc.identifier.scopus2-s2.0-85149717390
dc.identifier.urihttp://hdl.handle.net/11449/249749
dc.language.isoeng
dc.relation.ispartofEnergies
dc.sourceScopus
dc.subjectCCUS
dc.subjectcentral composite rotatable design
dc.subjectmineral carbonation
dc.subjectpH swing
dc.subjectserpentinite
dc.titleExperimental Study on Mineral Dissolution and Carbonation Efficiency Applied to pH-Swing Mineral Carbonation for Improved CO2 Sequestrationen
dc.typeArtigo
unesp.author.orcid0000-0001-8428-0078[1]
unesp.author.orcid0000-0002-9129-0087[4]
unesp.departmentEnergia - FEGpt

Arquivos

Coleções

Guaratinguetá - FEG - Faculdade de Engenharia e Ciências