Capture of CO2 by vermiculite impregnated with CaO.

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dc.contributor.authorPereira, Matheus Henrique Simplício
dc.contributor.authorSantos, Cláudio Gouvêa dos
dc.contributor.authorLima, Geraldo Magela de
dc.contributor.authorBruziquesi, Carlos Giovani Oliveira
dc.contributor.authorOliveira, Victor de Alvarenga
dc.date.accessioned2022-10-04T21:10:05Z
dc.date.available2022-10-04T21:10:05Z
dc.date.issued2022pt_BR
dc.description.abstractVermiculite samples were impregnated with different amounts of calcium oxide by the con- ventional thermal heating technique and subject to CO2 capture experiments in thermal analysis equipment. The amount of CO2 captured by calcium oxide increased from 13 g of CO2 per mol of CaO to 16.8 g of CO2 per mol of CaO when the experiments were carried out with pure calcium oxide and vermiculite impregnated with CaO (1:1), respectively. Integral isoconversional methods of Kissinger-Akahira-Sunose (KAS) and Osawa-Flynn-Wall (OFW) were used for the kinetic study of the process and good correlation coefficients were achieved. The apparent activation energy values showed that for low conversions (a < 0.3) the controlling step of the process is a mixed step where the chemical reaction and the dif- fusion of the reagents into the vermiculite have rates of the same order of magnitude (20 kJ < Ea < 40 kJ). For higher conversions values (a > 0.3) the apparent activation energy values suggest that the slow step is a chemical step (Ea> 40 kJ).pt_BR
dc.identifier.citationPEREIRA, M. H. S. et al. Capture of CO2 by vermiculite impregnated with CaO. Carbon Management, v. 13, p. 117-126, 2022. Disponível em: <https://www.tandfonline.com/doi/full/10.1080/17583004.2021.2023050>. Acesso em: 29 abr. 2022.pt_BR
dc.identifier.doihttps://doi.org/10.1080/17583004.2021.2023050pt_BR
dc.identifier.issn1758-3012
dc.identifier.urihttp://www.repositorio.ufop.br/jspui/handle/123456789/15593
dc.language.isoen_USpt_BR
dc.rightsabertopt_BR
dc.rights.licenseThis is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Fonte: o PDF do artigo.pt_BR
dc.subjectCalcium oxidept_BR
dc.subjectIsoconversionalpt_BR
dc.subjectMethodpt_BR
dc.subjectKineticspt_BR
dc.titleCapture of CO2 by vermiculite impregnated with CaO.pt_BR
dc.typeArtigo publicado em periodicopt_BR
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