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Title

Evaluation of the effect of inert support on the carbonation reaction of synthetic CaO-based CO2 sorbents

AuthorsLópez Sebastián, José Manuel ; Grasa Adiego, Gemma ; Murillo Villuendas, Ramón
KeywordsCO2 capture
Regenerable sorbents
Carbonation
Kinetics
Limestone
Issue Date5-May-2018
PublisherElsevier
CitationChemical Engineering Journal 350: 559-572 (2018)
AbstractCalcium oxide has been proved to be a suitable sorbent for high temperature CO2 capture processes based on the cyclic carbonation-calcination reaction. In this work several synthetic sorbents have been prepared with CaO contents between 40 and 95% wt. on to two different inert supports MgO and Ca12Al14O33. The effect of CaO content and inert nature on materials CO2 carrying capacity and reactivity towards carbonation reaction has been assessed. The materials have been texturally characterised. A complete kinetic study has been performed and the Random Pore Model has been applied to determine the intrinsic rate parameters for the carbonation reaction. Suitable particles for operation in fixed bed reactor have been produced from some selected powdered materials, and a complete particle reaction model that incorporate the intrinsic kinetic data has been developed and validated.
Description13 Figuras.- 3 Tablas.- Título del post-print: "On the effect of inert support on the carbonation reaction of synthetic CaO-based CO2 sorbents"
Publisher version (URL)http://dx.doi.org/10.1016/j.cej.2018.05.014
URIhttp://hdl.handle.net/10261/191711
DOI10.1016/j.cej.2018.05.014
ISSN1385-8947
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