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Experimental carbonation of CaO in an entrained flow reactor

AuthorsPlou Gómez, Jorge; Martínez Berges, Isabel; Grasa Adiego, Gemma ; Murillo Villuendas, Ramón
KeywordsCaO-based materials
Entrained flow reactor
Cement plant
CO2 capture
Issue Date18-Feb-2019
PublisherRoyal Society of Chemistry (UK)
CitationReaction Chemistry and Engineering 4(5): 899-908 (2019)
AbstractIn this work, the feasibility of an entrained flow reactor for full decarbonisation of gas streams has been proved. Three CaO-based materials (two types of lime and calcined raw meal) with different textural properties and therefore, different CO2 carrying capacities have been fed to the entrained flow reactor in a series of tests in which the Ca/CO2 molar ratio and solid residence time were the operation variables studied. Up to 11 mol CO2 m−2 s−1 has been captured from the gas phase with CaO from calcined lime with a maximum CO2 carrying capacity of 0.57 mol CO2 per mol CaO, reaching CO2 capture efficiencies over 90% for a Ca/CO2 molar ratio of 5 and solid residence times under 5 s.
Description13 Figuras.- 2 Tablas
Publisher version (URL)http://dx.doi.org/10.1039/C9RE00015A
Appears in Collections:(ICB) Artículos
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