Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/11107
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | CO2 Capture Capacity of CaO in Long Series of Carbonation/Calcination Cycles |
Autor: | Grasa Adiego, Gemma CSIC ORCID ; Abanades García, Juan Carlos CSIC ORCID | Fecha de publicación: | 9-nov-2006 | Editor: | American Chemical Society | Citación: | Industrial and Engineering Chemistry Research 45(26): 8846-8851 (2006) | Resumen: | Calcium oxide can be an effective sorbent to separate CO2 at high temperatures. When coupled with a calcination step to produce pure CO2, the carbonation reaction is the basis for several high-temperature CO2 capture systems. The evolution with cycling of the capture capacity of CaO derived from natural limestones is experimentally investigated in this work. Long series of carbonation/calcination cycles (up to 500) varying different variables affecting sorbent capacity have been tested in a thermogravimetric apparatus. Calcination temperatures above T > 950°C and very long calcination times accelerate the decay in sorption capacity, while other variables have a comparatively modest effect on the overall sorbent performance. A residual conversion of about 7−8% that remains constant after many hundreds of cycles and that seems insensitive to process conditions has been found. This residual conversion makes very attractive the carbonation/calcination cycle, by reducing (or even eliminating) sorbent purge rates in the system. A semiempirical equation has been proposed to describe sorbent conversion with the number of cycles based on these new long data series. | Descripción: | 6 pages, 11 figures, 1 table.-- Printed version published Dec 20, 2006. | Versión del editor: | http://dx.doi.org/10.1021/ie0606946 | URI: | http://hdl.handle.net/10261/11107 | DOI: | 10.1021/ie0606946 | ISSN: | 0888-5885 |
Aparece en las colecciones: | (ICB) Artículos (INCAR) Artículos |
Mostrar el registro completo
CORE Recommender
SCOPUSTM
Citations
705
checked on 18-abr-2024
WEB OF SCIENCETM
Citations
627
checked on 22-feb-2024
Page view(s)
672
checked on 24-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.