Layered double hydroxides for CO2 adsorption at moderate temperatures: synthesis and amelioration strategies
Fecha
2023Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
Impacto
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10.1016/j.cej.2022.140551
Resumen
Curving the CO2 atmospheric levels is one of the challenges of this century, given its direct impact on climate
change. Of the several strategies of CO2 capture and storage, sorption-enhanced water–gas shift (SEWGS) process, a combination of CO2 adsorption and the water–gas shift reaction, has been appointed as one of the most
promising techniques due to is low energy consumption and high effic ...
[++]
Curving the CO2 atmospheric levels is one of the challenges of this century, given its direct impact on climate
change. Of the several strategies of CO2 capture and storage, sorption-enhanced water–gas shift (SEWGS) process, a combination of CO2 adsorption and the water–gas shift reaction, has been appointed as one of the most
promising techniques due to is low energy consumption and high efficiency. SEWGS operating settings at both
moderate temperature (200–450 ◦C) and high pressure (more than 10 bar) bring the need to find an adsorbent
capable of working at these conditions. Calcined layered double hydroxides (LDH) have been proven to give the
best results in this range of pressure/temperatures even though its performance can be greatly improved. Herein,
a state-of-art of the research accomplished up until now is presented. Several strategies can be followed to
improve the adsorbents performance: the synthesis method, LDH composition, modifications employed to promote their adsorption capacity or how the adsorption conditions can affect their efficiency [--]
Materias
CO2 adsorption,
Carbon dioxide,
Layered double hydroxides,
Sorption enhanced water–gas shift process
Editor
Elsevier
Publicado en
Chemical Engineering Journal 455 (2023) 140551
Departamento
Universidad Pública de Navarra. Departamento de Ciencias /
Nafarroako Unibertsitate Publikoa. Zientziak Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute for Advanced Materials and Mathematics - INAMAT2
Versión del editor
Entidades Financiadoras
The authors are grateful for financial support from the Spanish
Ministry of Science and Innovation (MCIN/AEI/10.13039/
501100011033) through project PID2020-112656RB-C21. LS thanks
Open access funding provided by Universidad Pública de Navarra for a
post-doctoral Margarita Salas grant, financed by the European Union-
Next Generation EU. AG also thanks Banco Santander for funding
through the Research Intensification Program.