期刊
ENERGY TECHNOLOGY
卷 4, 期 8, 页码 1013-1019出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201600068
关键词
calcination; calcium looping; CO2 capture; solar power; thermochemical energy storage
资金
- Andalusian Regional Government Junta de Andalucia [FQM-5735, TEP-7858]
- Spanish Government Agency Ministerio de Economia y Competitividad
- FEDER Funds [CTQ2014-52763-C2-1-R, CTQ2014-52763-C2-2-R]
Cheap, efficient, and non-toxic energy storage technologies are urgently needed to handle the rapidly increasing penetration of intermittent renewable energies into the grid. This work explores the use of limestone and dolomite for energy storage in concentrated solar power (CSP) plants by means of the calcium looping (CaL) process based on the multicycle carbonation/calcination of CaO. An efficient integration of the CaL process into CSP plants involves high temperature carbonation and calcination at moderate temperatures in a close CO2 cycle for power generation. These conditions differ from those of the CaL process for CO2 capture, which lead to CaO deactivation as extensively reported in recent years. In contrast, we show that limestone- and dolomite-derived CaO give rise to a high residual conversion at CaL-CSP conditions and in short residence times, which would facilitate the development of a competitive and clean CSP technology with permanent energy storage.
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