The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle

Este artículo describe materiales para CSP muy prometedores basados en el ciclo CaO/CaCO3

Detalles Bibliográficos
Autores: Castro-Yáñez, David, Erans, María, Peral, Ángel, Sanz, Raúl, González-Aguilar, José, Romero, Manuel, Briones, Laura, Sanz-Pérez, Eloy Santiago, Escola, José María
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:Universidad Rey Juan Carlos
Repositorio:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
OAI Identifier:oai:burjcdigital.urjc.es:10115/32506
Acceso en línea:https://hdl.handle.net/10115/32506
Access Level:acceso abierto
Palabra clave:Thermochemical heat storage
CaO/CaCO3 cycle
Calcium looping
Meosporous alumina
CST
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spelling The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycleCastro-Yáñez, DavidErans, MaríaPeral, ÁngelSanz, RaúlGonzález-Aguilar, JoséRomero, ManuelBriones, LauraSanz-Pérez, Eloy SantiagoEscola, José MaríaThermochemical heat storageCaO/CaCO3 cycleCalcium loopingMeosporous aluminaCSTEste artículo describe materiales para CSP muy prometedores basados en el ciclo CaO/CaCO3The synthesis of CaO-based pellets with high energy storage and suitable mechanical resistance after prolonged cycling is pivotal for the successful implementation of the Calcium looping (CaL) technology for energy storage in CSP plants. In this work, CaO-based spherical pellets (CAA) were prepared made up of 60 wt % Ca(OH)2 and varying ratios (0–40 wt %) of commercial γ-Al2O3 and mesoporous γ-Al2O3 (m-Al2O3). They were tested in TG in several CO2 carbonation/decarbonation cycles (15 and 50 for selected pellets) and their respective average crushing strengths measured. After 15 cycles, the optimum pellet CAA 20-20 (60 wt % Ca(OH)2/20 wt % γ-Al2O3/20 wt % m-Al2O3) exhibits a remarkable energy storage density of 1030 kJ/kg with a superb crushing strength of ~29 N. This was ascribed to the enhanced formation of the calcium aluminate mayenite (Ca12Al14O33), since the high BET surface area (384 m2 g 1) of mesoporous γ-Al2O3 promotes the interaction with calcium oxide. Additionally, CAA 20-20 showed meaningful porosity that favored CO2 mass transport. Interestingly, after 50 cycles, the optimum CAA 20-20 pellet maintained a high carbonation yield (0.46), representing an 84 % of the initial value and corresponding to an energy storage density of ~873 kJ/kg. Additionally, the optimum CAA 20-20 pellet was coated with an external layer of Al-MCM-41 silica that augmented its crushing strength up to 37 N, with a concurrent slight abatement in the carbonation yield and energy storage density after 50 cycles (0.43 and ~824 kJ/kg). Consequently, both uncoated and coated CAA 20-20 pellet are promising for the successful implementation of CaL in CSP plants.Elsevier202420242024info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/10115/32506reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlosinstname:Universidad Rey Juan CarlosInglésAttribution-NonCommercial-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:burjcdigital.urjc.es:10115/325062026-06-24T12:48:17Z
dc.title.none.fl_str_mv The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
title The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
spellingShingle The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
Castro-Yáñez, David
Thermochemical heat storage
CaO/CaCO3 cycle
Calcium looping
Meosporous alumina
CST
title_short The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
title_full The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
title_fullStr The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
title_full_unstemmed The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
title_sort The key role played by mesoporous alumina as binder for obtaining ultra-hard CaO based pellets for thermochemical heat storage leveraging the CaO/CaCO3 cycle
dc.creator.none.fl_str_mv Castro-Yáñez, David
Erans, María
Peral, Ángel
Sanz, Raúl
González-Aguilar, José
Romero, Manuel
Briones, Laura
Sanz-Pérez, Eloy Santiago
Escola, José María
author Castro-Yáñez, David
author_facet Castro-Yáñez, David
Erans, María
Peral, Ángel
Sanz, Raúl
González-Aguilar, José
Romero, Manuel
Briones, Laura
Sanz-Pérez, Eloy Santiago
Escola, José María
author_role author
author2 Erans, María
Peral, Ángel
Sanz, Raúl
González-Aguilar, José
Romero, Manuel
Briones, Laura
Sanz-Pérez, Eloy Santiago
Escola, José María
author2_role author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Thermochemical heat storage
CaO/CaCO3 cycle
Calcium looping
Meosporous alumina
CST
topic Thermochemical heat storage
CaO/CaCO3 cycle
Calcium looping
Meosporous alumina
CST
description Este artículo describe materiales para CSP muy prometedores basados en el ciclo CaO/CaCO3
publishDate 2024
dc.date.none.fl_str_mv 2024
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/10115/32506
url https://hdl.handle.net/10115/32506
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
instname:Universidad Rey Juan Carlos
instname_str Universidad Rey Juan Carlos
reponame_str BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
collection BURJC-Digital. Repositorio Institucional de la Universidad Rey Juan Carlos
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.811543

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