Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process

This work analyzes the relevant influence of milling on the CO capture performance of CaO derived from natural limestone. Diverse types of milling mechanisms produce contrasting effects on the microstructure of the CaO formed after calcination of the milled limestone samples, which affects crucially...

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Detalles Bibliográficos
Autores: Benítez-Guerrero, Mónica, Valverde, J. M., Perejón, Antonio, Sánchez-Jiménez, Pedro E., Pérez-Maqueda, Luis A.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/171914
Acceso en línea:http://hdl.handle.net/10261/171914
Access Level:acceso abierto
Palabra clave:Ball milling
Porosity
Crystallite size
CO2 capture
Calcium-Looping
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repository_id_str
spelling Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping processBenítez-Guerrero, MónicaValverde, J. M.Perejón, AntonioSánchez-Jiménez, Pedro E.Pérez-Maqueda, Luis A.Ball millingPorosityCrystallite sizeCO2 captureCalcium-LoopingThis work analyzes the relevant influence of milling on the CO capture performance of CaO derived from natural limestone. Diverse types of milling mechanisms produce contrasting effects on the microstructure of the CaO formed after calcination of the milled limestone samples, which affects crucially the kinetics of carbonation at conditions for CO capture. The capture capacity of CaO derived from limestone samples milled using either shear or impact based mills is impaired compared to as-received limestone. After calcination of the milled samples, the resulting CaO porosity is increased while crystallinity is enhanced, which hinders carbonation. Conversely, if the material is simultaneously subjected to intense impact and shear stresses, CaO porosity is promoted whereas CaO cristanillity is reduced, which enhances carbonation in both the reaction and solid-state diffusion controlled regimes.Peer ReviewedElsevierConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2018201820182018info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/171914reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/1719142026-05-22T06:33:51Z
dc.title.none.fl_str_mv Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
title Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
spellingShingle Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
Benítez-Guerrero, Mónica
Ball milling
Porosity
Crystallite size
CO2 capture
Calcium-Looping
title_short Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
title_full Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
title_fullStr Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
title_full_unstemmed Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
title_sort Effect of milling mechanism on the CO2 capture performance of limestone in the Calcium Looping process
dc.creator.none.fl_str_mv Benítez-Guerrero, Mónica
Valverde, J. M.
Perejón, Antonio
Sánchez-Jiménez, Pedro E.
Pérez-Maqueda, Luis A.
author Benítez-Guerrero, Mónica
author_facet Benítez-Guerrero, Mónica
Valverde, J. M.
Perejón, Antonio
Sánchez-Jiménez, Pedro E.
Pérez-Maqueda, Luis A.
author_role author
author2 Valverde, J. M.
Perejón, Antonio
Sánchez-Jiménez, Pedro E.
Pérez-Maqueda, Luis A.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Ball milling
Porosity
Crystallite size
CO2 capture
Calcium-Looping
topic Ball milling
Porosity
Crystallite size
CO2 capture
Calcium-Looping
description This work analyzes the relevant influence of milling on the CO capture performance of CaO derived from natural limestone. Diverse types of milling mechanisms produce contrasting effects on the microstructure of the CaO formed after calcination of the milled limestone samples, which affects crucially the kinetics of carbonation at conditions for CO capture. The capture capacity of CaO derived from limestone samples milled using either shear or impact based mills is impaired compared to as-received limestone. After calcination of the milled samples, the resulting CaO porosity is increased while crystallinity is enhanced, which hinders carbonation. Conversely, if the material is simultaneously subjected to intense impact and shear stresses, CaO porosity is promoted whereas CaO cristanillity is reduced, which enhances carbonation in both the reaction and solid-state diffusion controlled regimes.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/171914
url http://hdl.handle.net/10261/171914
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869403740483616768
score 15,811543

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