2024-03-28T11:15:09Zhttp://digital.csic.es/dspace-oai/requestoai:digital.csic.es:10261/1601052020-12-13T09:06:46Zcom_10261_98com_10261_3col_10261_351
2018-02-05T08:47:01Z
urn:hdl:10261/160105
Low-cost Ca-based composites synthesized by biotemplate method for thermochemical energy storage of concentrated solar power
Benítez-Guerrero, Mónica
Valverde, J.M.
Perejón, Antonio
Sánchez-Jiménez, P.E.
Pérez-Maqueda, Luis A.
Thermochemical energy storage
Calcium looping
Biomorphic composites
Renewable resources, Energy conversion
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.
2018-02-05T08:47:01Z
2018-02-05T08:47:01Z
2018
2018-02-05T08:47:01Z
artículo
Applied Energy 210: 108- 116 (2018)
http://hdl.handle.net/10261/160105
10.1016/j.apenergy.2017.10.109
eng
Postprint
Sí
openAccess
Pergamon Press