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The Oxy-CaL process: A novel CO2 capture system by integrating partial oxy-combustion with the Calcium-Looping process

Opened Access The Oxy-CaL process: A novel CO2 capture system by integrating partial oxy-combustion with the Calcium-Looping process

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Autor: Ortiz Domínguez, Carlos
Valverde Millán, José Manuel
Chacartegui Ramírez, Ricardo
Benítez Guerrero, Mónica
Perejón Pazo, Antonio
Romero, Luis M.
Departamento: Universidad de Sevilla. Departamento de Electrónica y Electromagnetismo
Universidad de Sevilla. Departamento de Ingeniería Energética
Universidad de Sevilla. Departamento de Química Inorgánica
Fecha: 2017
Publicado en: Applied Energy, 196, 1-17.
Tipo de documento: Artículo
Resumen: This paper proposes a novel CO2 capture technology from the integration of partial oxy-combustion and the Calcium-Looping capture process based on the multicycle carbonation/calcination of limestone derived CaO. The concentration of CO2 in the carbonator reactor is increased by means of partial oxy-combustion, which enhances the multicycle CaO conversion according to thermogravimetric analysis results carried out in our work, thus improving the CO2 capture efficiency. On the other hand, energy consumption for partial oxy-combustion is substantially reduced as compared to total oxy-combustion. All in all, process simulations indicate that the integration of both processes has potential advantages mainly regarding power plant flexibility whereas the overall energy penalty is not increased. Thus, the resulting energy consumption per kilogram of CO2 avoided is kept smaller than 4 MJ/kg CO2, which remains below the typical values reported for total oxy-combustion and amine based CO2 captur...
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Cita: Ortiz Domínguez, C., Valverde Millán, J.M., Chacartegui Ramírez, R., Benítez Guerrero, M., Perejón, A. y Romero, L.M. (2017). The Oxy-CaL process: A novel CO2 capture system by integrating partial oxy-combustion with the Calcium-Looping process. Applied Energy, 196, 1-17.
Tamaño: 2.220Mb
Formato: PDF

URI: https://hdl.handle.net/11441/69494

DOI: 10.1016/j.apenergy.2017.03.120

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