Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage
The calcium looping process, based on the reversible reaction between CaCO3 and CaO, is recently attracting a great deal of interest as a promising thermochemical energy storage system to be integrated in Concentrated Solar Power plants (CaL-CSP). The main drawbacks of the system are the incomplete...
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doaj-02caec8aeac54449948153ffcae457412020-11-25T02:09:58ZengElsevierJournal of Advanced Research2090-12322020-03-01226776Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storageJonatan D. Durán-Martín0Pedro E. Sánchez Jimenez1José M. Valverde2Antonio Perejón3Juan Arcenegui-Troya4Pablo García Triñanes5Luis A. Pérez Maqueda6Instituto de Ciencia de Materiales de Sevilla, C.S.I.C.-Universidad de Sevilla, C. Américo Vespucio n°49, 41092 Sevilla, Spain; Corresponding authors.Instituto de Ciencia de Materiales de Sevilla, C.S.I.C.-Universidad de Sevilla, C. Américo Vespucio n°49, 41092 Sevilla, Spain; Corresponding authors.Faculty of Physics, University of Seville, Avenida Reina Mercedes s/n, Sevilla, SpainInstituto de Ciencia de Materiales de Sevilla, C.S.I.C.-Universidad de Sevilla, C. Américo Vespucio n°49, 41092 Sevilla, Spain; Departamento de Química Inorgánica, Facultad de Química, Universidad de Sevilla, Sevilla, SpainInstituto de Ciencia de Materiales de Sevilla, C.S.I.C.-Universidad de Sevilla, C. Américo Vespucio n°49, 41092 Sevilla, SpainFlow, Heat and Reaction Engineering Group, FHRENG, Chemical Engineering Division, School of Engineering, University of Greenwich, United KingdomInstituto de Ciencia de Materiales de Sevilla, C.S.I.C.-Universidad de Sevilla, C. Américo Vespucio n°49, 41092 Sevilla, SpainThe calcium looping process, based on the reversible reaction between CaCO3 and CaO, is recently attracting a great deal of interest as a promising thermochemical energy storage system to be integrated in Concentrated Solar Power plants (CaL-CSP). The main drawbacks of the system are the incomplete conversion of CaO and its sintering-induced deactivation. In this work, the influence of particle size in these deactivation mechanisms has been assessed by performing experimental multicycle tests using standard limestone particles of well-defined and narrow particle size distributions. The results indicate that CaO multicycle conversion benefits from the use of small particles mainly when the calcination is carried out in helium at low temperature. Yet, the enhancement is only significant for particles below 15 μm. On the other hand, the strong sintering induced by calcining in CO2 at high temperatures makes particle size much less relevant for the multicycle performance. Finally, SEM imaging reveals that the mechanism responsible for the loss of activity is mainly pore-plugging when calcination is performed in helium, whereas extensive loss of surface area due to sintering is responsible for the deactivation when calcination is carried out in CO2 at high temperature. Keywords: Concentrated solar power, Calcium looping, Energy storage, Calcium oxide, Calcium carbonatehttp://www.sciencedirect.com/science/article/pii/S2090123219301663 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jonatan D. Durán-Martín Pedro E. Sánchez Jimenez José M. Valverde Antonio Perejón Juan Arcenegui-Troya Pablo García Triñanes Luis A. Pérez Maqueda |
spellingShingle |
Jonatan D. Durán-Martín Pedro E. Sánchez Jimenez José M. Valverde Antonio Perejón Juan Arcenegui-Troya Pablo García Triñanes Luis A. Pérez Maqueda Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage Journal of Advanced Research |
author_facet |
Jonatan D. Durán-Martín Pedro E. Sánchez Jimenez José M. Valverde Antonio Perejón Juan Arcenegui-Troya Pablo García Triñanes Luis A. Pérez Maqueda |
author_sort |
Jonatan D. Durán-Martín |
title |
Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage |
title_short |
Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage |
title_full |
Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage |
title_fullStr |
Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage |
title_full_unstemmed |
Role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage |
title_sort |
role of particle size on the multicycle calcium looping activity of limestone for thermochemical energy storage |
publisher |
Elsevier |
series |
Journal of Advanced Research |
issn |
2090-1232 |
publishDate |
2020-03-01 |
description |
The calcium looping process, based on the reversible reaction between CaCO3 and CaO, is recently attracting a great deal of interest as a promising thermochemical energy storage system to be integrated in Concentrated Solar Power plants (CaL-CSP). The main drawbacks of the system are the incomplete conversion of CaO and its sintering-induced deactivation. In this work, the influence of particle size in these deactivation mechanisms has been assessed by performing experimental multicycle tests using standard limestone particles of well-defined and narrow particle size distributions. The results indicate that CaO multicycle conversion benefits from the use of small particles mainly when the calcination is carried out in helium at low temperature. Yet, the enhancement is only significant for particles below 15 μm. On the other hand, the strong sintering induced by calcining in CO2 at high temperatures makes particle size much less relevant for the multicycle performance. Finally, SEM imaging reveals that the mechanism responsible for the loss of activity is mainly pore-plugging when calcination is performed in helium, whereas extensive loss of surface area due to sintering is responsible for the deactivation when calcination is carried out in CO2 at high temperature. Keywords: Concentrated solar power, Calcium looping, Energy storage, Calcium oxide, Calcium carbonate |
url |
http://www.sciencedirect.com/science/article/pii/S2090123219301663 |
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