English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/11100
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:


Sulfation of CaO Particles in a Carbonation/Calcination Loop to Capture CO2

AuthorsGrasa Adiego, Gemma ; Alonso Carreño, Mónica ; Abanades García, Juan Carlos
Issue Date30-Jan-2008
PublisherAmerican Chemical Society
CitationIndustrial and Engineering Chemistry Research 47(5): 1630-1635 (2008)
AbstractCaO is being proposed as a regenerable sorbent of CO2 via a carbonation/calcination loop. It is well known that natural sorbents lose their capacity to capture CO2 with the number of cycles due to textural degradation. In coal combustion systems, reaction with the SO2 present in flue gases also causes sorbent deactivation. This work investigates the effect of partial sorbent sulfation on the amount of CaO used in systems where both carbonation and sulfation reactions are competing. We have found that SO2 reacts with the deactivated CaO resulting from repetitive calcination/carbonation reactions. Therefore, the deactivation of CaO as a result of the presence of SO2 is lower than one would expect if one assumes that SO2 reacts only with active CaO. This work shows that changes in the texture of the sorbent due to repetitive carbonation/calcination cycles tend to increase the sulfation capacity of the sorbents tested. This suggests that the purge of deactivated CaO obtained from a CO2 capture loop could be a more effective sorbent of SO2 than fresh CaO.
Description6 pages, 10 figures.-- Printed version published Mar 5, 2008.
Publisher version (URL)http://dx.doi.org/10.1021/ie070937+
Appears in Collections:(ICB) Artículos
(INCAR) Artículos
Files in This Item:
There are no files associated with this item.
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.