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Título: | Low-cost Ca-based composites synthesized by biotemplate method for thermochemical energy storage of concentrated solar power |
Autor: | Benítez-Guerrero, Mónica; Valverde, J.M.; Perejón, Antonio CSIC ORCID; Sánchez-Jiménez, P.E. CSIC ORCID CVN; Pérez-Maqueda, Luis A. CSIC ORCID | Palabras clave: | Thermochemical energy storage Calcium looping Biomorphic composites Renewable resources Energy conversion |
Fecha de publicación: | 2018 | Editor: | Pergamon Press | Citación: | Applied Energy 210: 108- 116 (2018) | Resumen: | An ever more environmentally conscious society demands the use of green, sustainable and high-efficiency renewable energy resources. However, large-scale energy storage remains a challenge for a deep penetration of power produced from renewables into the grid. The Calcium-Looping (CaL) process, based on the reversible carbonation/calcination of CaO, is a promising technology for thermochemical energy storage (TCES) in Concentrated Solar Power (CSP) plants. Natural limestone to be used as CaO precursor is cheap, non-toxic and abundant. Nevertheless, recent works have shown that carbonation of CaO derived limestone at optimum conditions for TCES is limited by pore-plugging, which leads to severe deactivation for large enough particles to be employed in practice. In our work, we have synthesized inexpensive CaO/SiO composites by means of a biotemplate method using rice husk as support. The morphological and compositional features of the biomorphic materials synthesized help improve the CaO multicycle activity under optimum CSP storage conditions and for particles sufficiently large to be managed in practical processes. | URI: | http://hdl.handle.net/10261/160105 | DOI: | 10.1016/j.apenergy.2017.10.109 | Identificadores: | doi: 10.1016/j.apenergy.2017.10.109 issn: 0306-2619 |
Aparece en las colecciones: | (ICMS) Artículos |
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Low-cost Ca-based composites.pdf | 1,92 MB | Adobe PDF | Visualizar/Abrir |
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