dc.creator | Sánchez Jiménez, Pedro Enrique | es |
dc.creator | Valverde Millán, José Manuel | es |
dc.creator | Perejón Pazo, Antonio | es |
dc.creator | Calle Martos, Antonio de la | es |
dc.creator | Medina Carrasco, Santiago | es |
dc.creator | Pérez Maqueda, Luis Allan | es |
dc.date.accessioned | 2022-11-11T11:39:36Z | |
dc.date.available | 2022-11-11T11:39:36Z | |
dc.date.issued | 2016 | |
dc.identifier.issn | 1528-7505 | es |
dc.identifier.uri | https://hdl.handle.net/11441/139312 | |
dc.description.abstract | The multicycle CO2 capture performance of CaO derived from the calcination of ball-milled limestone and
dolomite have been tested under high temperature and high CO2 concentration environment for the first time.
Here it is shown that the CO2 capture capacity of CaO is inversely related to the milling power applied to the
starting mineral and the size of nascent CaO nanocrystals. In situ X-ray diffraction analysis used to follow the
average crystallite size of CaCO3 and CaO during the calcination process as a function of temperature
demonstrates that crystal growth is notably enhanced in CO2 rich atmosphere and milled sorbents. Contrary to
early reports suggesting improved reactivity towards carbonation of CaO from milled sorbents, promoted
agglomeration and crystal growth under this more “realistic” conditions lead to a severe deterioration of both
capture capacity and recyclability as observed by the multicyclic carbonation/calcination experiments. Yet the
negative effect of milling is less pronounced in dolomite due to the constrained sintering effect of the inert
MgO grains that results in smaller CaO crystallite sizes, reduced crystal growth rate and improved
performance. These results provide insight on the role of CaO crystallinity on the carbonation reaction, useful
for devising strategies to improve sorbents performance. | es |
dc.description.sponsorship | Andalusian Regional Government Junta de Andalucia (Contracts FQM-5735, TEP7858, and TEP-1900) | es |
dc.description.sponsorship | Spanish Government Agency Ministerio de Economia y Competitividad and FEDER funds (Contracts CTQ2014-52763-C2-2-R and CTQ2014-52763-C2-1-R) | es |
dc.format | application/pdf | es |
dc.format.extent | 12 p. | es |
dc.language.iso | eng | es |
dc.publisher | American Chemical Society | es |
dc.rights | Attribution-NonCommercial-NoDerivatives 4.0 Internacional | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/4.0/ | * |
dc.title | Influence of ball milling on CaO crystal growth during limestone and dolomite calcination: Effect on CO2 capture at Calcium Looping conditions | es |
dc.type | info:eu-repo/semantics/article | es |
dcterms.identifier | https://ror.org/03yxnpp24 | |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Química Inorgánica | es |
dc.contributor.affiliation | Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo | es |
dc.relation.projectID | CTQ2014-52763-C2-2-R | es |
dc.relation.projectID | CTQ2014-52763-C2-1-R | es |
dc.relation.projectID | FQM-5735 | es |
dc.relation.projectID | TEP7858 | es |
dc.relation.projectID | TEP-1900 | es |
dc.relation.publisherversion | https://doi.org/10.1021/acs.cgd.6b01228 | es |
dc.identifier.doi | 10.1021/acs.cgd.6b01228 | es |
dc.journaltitle | Crystal Growth & Design | es |
dc.publication.volumen | 16 | es |
dc.publication.issue | 12 | es |
dc.publication.initialPage | 7025 | es |
dc.publication.endPage | 7036 | es |
dc.contributor.funder | Junta de Andalucía | es |
dc.contributor.funder | Ministerio de Economía y Competitividad (MINECO). España | es |
dc.contributor.funder | European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER) | es |