Artículo
Thermochemical Energy Storage Using Calcium Magnesium Acetates under Low CO2 Pressure Conditions
Autor/es | Amghar, Nabil
Sánchez Jiménez, Pedro Enrique Pérez Maqueda, Luis A. Perejón Pazo, Antonio |
Departamento | Universidad de Sevilla. Departamento de Química Inorgánica |
Fecha de publicación | 2023 |
Fecha de depósito | 2024-05-13 |
Publicado en |
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Resumen | The calcium looping multicycle performance of CaO-based materials, derived from calcium magnesium acetates with different Mg content were tested under experimental conditions compatible with thermochemical energy storage. ... The calcium looping multicycle performance of CaO-based materials, derived from calcium magnesium acetates with different Mg content were tested under experimental conditions compatible with thermochemical energy storage. In order to reduce the sintering-induced decay in performance, calcination at an absolute CO2 pressure of 0.1 bar and 0.01 bar is implemented. CaO carbonation is performed at standard 1 bar CO2 conditions. The samples can be fully calcined in short residence times. Samples with MgO present high cycling stability, even when the MgO content is as low as 5 mol%. The effective conversion values lie within the range 0.88–0.84 over ten calcination/carbonation cycles, which provides an accumulated energy storage density of 90.9 GJ/m3. This outstanding reactivity is related with the microstructure of the sample after calcination composed of CaO nanoparticles that are highly reactive for carbonation. |
Agencias financiadoras | Ministerio de Ciencia e Innovación (MICIN). España |
Identificador del proyecto | TED2021-131839B-C22
PDC2021-121552-C21 CTQ2017-83602-C2-1-R |
Cita | Amghar, N., Sánchez Jiménez, P.E., Pérez Maqueda, L.A. y Perejón Pazo, A. (2023). Thermochemical Energy Storage Using Calcium Magnesium Acetates under Low CO2 Pressure Conditions. Journal of Energy Storage, 63, 106958. https://doi.org/10.1016/j.est.2023.106958. |
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