Large-scale high-temperature solar energy storage using natural minerals

被引：144
作者：
Benitez-Guerrero, Monica [1 ,2 ]
Sarrion, Beatriz [2 ]
Perejon, Antonio [2 ,3 ]
Sanchez-Jimenez, Pedro E. [2 ]
Perez-Maqueda, Luis A. [2 ]
Manuel Valverde, Jose [1 ]
机构：
[1] Univ Seville, Fac Fis, Ave Reina Mercedes S-N, E-41012 Seville, Spain
[2] Univ Seville, CSIC, Inst Ciencia Mat Sevilla, C Americo Vespucio 49, Seville 41092, Spain
[3] Univ Seville, Fac Quim, Dept Quim Inorgan, E-41071 Seville, Spain
来源：
SOLAR ENERGY MATERIALS AND SOLAR CELLS | 2017年 / 168卷
关键词：
Concentrated Solar Power; Natural carbonates; Multicyde conversion; CaL-CSP storage; CaL-CO2; capture; Particle size; CO2; CAPTURE; LOOPING PROCESS; PRODUCT LAYER; CALCIUM-OXIDE; CAO; POWER; CALCINATION; DOLOMITE; DECOMPOSITION; CONVERSION;
D O I：
10.1016/j.solmat.2017.04.013
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The present work is focused on thermochemical energy storage (TCES) in Concentrated Solar Power (CSP) plants by means of the Calcium-Looping (CaL) process using cheap, abundant and non-toxic natural carbonate minerals. CaL conditions for CSP storage involve calcination of CaCO3 in the solar receiver at relatively low temperature whereas carbonation of CaO is carried out at high temperature and high CO2 concentration to use the heat of reaction for power production by means of a CO2 closed power cycle. Under these conditions, large CaO particles derived from limestone to be used in industrial processes are rapidly deactivated due to pore plugging, which limits the extent of the reaction. This is favored by the relatively small pores of the CaO skeleton generated by low temperature calcination, the large thickness of the CaCO3 layer built upon the CaO surface and the very fast carbonation kinetics. On the other hand, at CaL conditions for CSP storage does not limit carbonation of CaO derived from dolomite (dolime). Dolime is shown to exhibit a high multicycle conversion regardless of particle size, which is explained by the presence of inert MgO grains that allow the reacting gas to percolate inside the porous particles.
引用
收藏
页码：14 / 21
页数：8
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