Artículo
Operando Raman spectroscopic studies of lithium zirconates during CO2 capture at high temperature
Fecha de publicación:
01/2016
Editorial:
Royal Society of Chemistry
Revista:
RSC Advances
ISSN:
2046-2069
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Li2ZrO3 based sorbents were synthesized for CO2 capture at high temperature between 500 and 700 C. Monoclinic ZrO2, tetragonal Li2ZrO3, Li2 CO3, K2CO3 and LiKCO3 phases were detected by XRD and Raman spectroscopy. The sorbents showed high stability and moderate capture efficiency. The addition of K resulted in the improvement of capture efficiency from 0.052 g CO2 g mat1 in materials without K to 0.083 g CO2 g mat1 in the doped solid. Here, we report an experimental setup of Raman spectroscopy coupled with online mass spectrometry and a demonstration of its capabilities using lithium zirconates as sorbents for high temperature CO2 capture. Operando Raman spectroscopy allowed us to follow up the phase evolution during the capture process for the first time. The results obtained confirmed the presence of molten K and Li carbonates when the K-doped zirconates wereexposed to CO2 at 500 C.
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Articulos(INCAPE)
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Articulos de INST.DE INVEST.EN CATALISIS Y PETROQUIMICA "ING. JOSE MIGUEL PARERA"
Citación
Peltzer, Diana Jacqueline; Múnera Agudelo, John Fernando; Cornaglia, Laura Maria; Operando Raman spectroscopic studies of lithium zirconates during CO2 capture at high temperature; Royal Society of Chemistry; RSC Advances; 6; 1-2016; 8222-8231
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