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Título: | Sorbent attrition in a carbonation/calcination pilot plant for capturing CO2 from flue gases |
Autor: | González García, Belén CSIC ORCID; Alonso Carreño, Mónica CSIC ORCID ; Abanades García, Juan Carlos CSIC ORCID | Palabras clave: | CO2 capture Limestone Attrition Fluidized bed |
Fecha de publicación: | oct-2010 | Citación: | Fuel 89(10): 2918-2924 | Resumen: | There is increasing interest in CO2 looping cycles that involve the repeated calcination and carbonation of the sorbent as a way to capture CO2 from flue gases during the carbonation step and the generation of a pure stream of CO2 in the oxyfired calcination step. In particular, attrition of the material in these interconnected fluidized bed reactors is a problem of general concern. Attrition of limestone derived materials has been studied in fluidized-bed systems by numerous authors. In this work, we have investigated the attrition of two limestones used in a system of two interconnected circulating fluidized bed reactors operating in continuous mode as carbonation and calciner reactors. We observed a rapid initial attrition of both limestones during the calcination step which was then followed by a highly stable period (up to 140 h of added circulation for one of the limestones) during which particle size changes were negligible. This is consistent with previous observations of attrition in other systems that employ these materials. However, a comparison of the attrition model constants with the data reported in the literature showed the two limestones to be particularly fragile during the initial calcination and the first few hours of circulation. Thus, a careful choice of limestone based on its attrition properties must be taken into account in designing future carbonate looping systems. | Descripción: | 19 páginas, 9 figuras, 1 gráfico | Versión del editor: | doi:10.1016/j.fuel.2010.01.019 | URI: | http://hdl.handle.net/10261/29721 | ISSN: | 0016-2361 |
Aparece en las colecciones: | (INCAR) Artículos |
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SORBENT ATTRITION IN A CARBONATION-CALCINATION PILOT PLANT FOR CAPTURING CO2 FROM FLUE GASES.pdf | 272,89 kB | Adobe PDF | Visualizar/Abrir |
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