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dc.contributor.authorGrasa Adiego, Gemma-
dc.contributor.authorMartínez Berges, Isabel-
dc.contributor.authorDiego de Paz, María Elena-
dc.contributor.authorAbanades García, Juan Carlos-
dc.date.accessioned2014-06-17T08:28:58Z-
dc.date.available2014-06-17T08:28:58Z-
dc.date.issued2014-04-28-
dc.identifier.citationEnergy and Fuels 28(26): 4033-4042 (2014)es_ES
dc.identifier.issn0087-0624-
dc.identifier.urihttp://hdl.handle.net/10261/98456-
dc.description10 pages, 6 figures, 3 tableses_ES
dc.description.abstractThis work investigates the kinetics of the reaction of CO2 with CaO particles partially carbonated that are forced to increase their carbonate content at high temperatures in an atmosphere of rich CO2. This additional recarbonation reaction on particles that have already completed their fast carbonation stage is the basis of a novel process that aims to increase the CO2 carrying capacity of sorbents in calcium looping CO2 capture systems. The CaO reaction rates and the maximum carbonation conversions after the recarbonation step were measured on a thermogravimetric analyzer, and the results indicate that they are highly dependent upon the temperature and CO2 partial pressure, with steam also being a contributing factor. The reaction mechanism governing the reaction rates during the carbonation and recarbonation reactions is explained by the combined control of the chemical reaction and CO2 diffusion through the CaCO3 product layer. An extension of the random pore model adapted to multi-cycled CaO particles was successfully applied to calculate the CaO molar conversion as a function of the time and the recarbonation conditions, using kinetic parameters consistent with previously published results on carbonation kinetics under typical flue gas conditions.es_ES
dc.description.sponsorshipThis work is supported by the European Programme of the Research Fund for Coal and Steel under RECaL project (RFCR-CT-2012-00008). Financial support for I. Martínez during her PhD studies has been provided by the FPU programme of the Spanish Ministry of Education (AP2009-3575). M.E. Diego acknowledges a fellowship grant under the CSIC JAE Programme, co-funded by the European Social Fund.es_ES
dc.language.isoenges_ES
dc.publisherAmerican Chemical Societyes_ES
dc.relation.isversionofPostprintes_ES
dc.rightsopenAccesses_ES
dc.subjectCO2 capturees_ES
dc.subjectRegenerable sorbentses_ES
dc.subjectCarbonationes_ES
dc.subjectCO2 carrying capacity kinetices_ES
dc.subjectLimestonees_ES
dc.titleDetermination of CaO carbonation kinetics under recarbonation conditionses_ES
dc.typeartículoes_ES
dc.identifier.doi10.1021/ef500331t-
dc.description.peerreviewedPeer reviewedes_ES
dc.relation.publisherversionhttp://dx.doi.org/10.1021/ef500331tes_ES
dc.identifier.e-issn1520-5029-
dc.embargo.terms2015-04-28es_ES
dc.relation.csices_ES
dc.type.coarhttp://purl.org/coar/resource_type/c_6501es_ES
item.openairetypeartículo-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.grantfulltextopen-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextWith Fulltext-
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