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Título: | Chemical Looping Combustion of biomass: CLOU experiments with a Cu-Mn mixed oxide |
Autor: | Adánez-Rubio, Iñaki CSIC ORCID; Pérez-Astray, Antón CSIC; Mendiara, Teresa CSIC ORCID ; Izquierdo Pantoja, María Teresa CSIC ORCID ; Abad Secades, Alberto CSIC ORCID ; Gayán Sanz, Pilar CSIC ORCID ; Diego Poza, Luis F. de CSIC ORCID | Palabras clave: | CO2 capture Chemical looping combustion CLOU Biomass Negative CO2 emissions |
Fecha de publicación: | 4-ene-2018 | Editor: | Elsevier | Citación: | Fuel Processing Technology 172: 179-186 (2018) | Resumen: | Chemical looping combustion (CLC) is a low-cost CO2 capture technology with a low energy penalty. Bio-energy with CO2 capture and storage (BECCS) opens up the possibility for negative CO2 emissions involving the removal of CO2 already emitted into the atmosphere. The oxygen needed for combustion in CLC processes is supplied by a solid oxygen carrier circulating between the fuel reactor and the air reactor. In this work, the combustion of different types of biomass, such as pine sawdust, olive stones and almond shells, was studied in a continuous 1.5 kWth CLC unit. A mixed Cu-Mn oxide was used as the oxygen carrier. This material releases gaseous oxygen when reduced, resulting in Chemical looping combustion with oxygen uncoupling (CLOU). The released oxygen reacts with both the volatiles and char generated inside the fuel reactor when biomass is fed into it. The oxygen carrier is reoxidized in air inside the air reactor. High CO2 capture and 100% combustion efficiencies were achieved with this Cu-Mn oxygen carrier. The oxygen concentration inside the air reactor did not affect CO2 capture efficiency under the studied conditions. | Descripción: | © 2018. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ | Versión del editor: | http://dx.doi.org/10.1016/j.fuproc.2017.12.010 | URI: | http://hdl.handle.net/10261/160528 | DOI: | 10.1016/j.fuproc.2017.12.010 | ISSN: | 0378-3820 |
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2018 FPT_172_179_186_Adanez-Rubio et al (1).pdf | 996,66 kB | Adobe PDF | Visualizar/Abrir |
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