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Título: | Enhancing CO2 methanation over Ni catalysts supported on sol-gel derived Pr2O3-CeO2: An experimental and theoretical investigation |
Autor: | Tsiotsias, Anastasios I.; Charisiou, Nikolaos D.; Harkou, Eleana; Hafeez, Sanaa; Manos, George; Constantinou, Achilleas; Hussien, Aseel G.S.; Dabbawala, Aasif A.; Sebastián, Víctor CSIC ORCID; Hinder, Steven J.; Baker, Mark A.; Polychronopoulou, Kyriaki; Goula, Maria A. | Fecha de publicación: | 2022 | Editor: | Elsevier | Citación: | Applied Catalysis B: Environmental 318: 121836 (2022) | Resumen: | Ni-based catalysts supported on sol-gel prepared Pr-doped CeO2 with varied porosity and nanostructure were tested for the CO2 methanation reaction. It was found that the use of ethylene glycol in the absence of H2O during a modified Pechini synthesis led to a metal oxide support with larger pore size and volume, which was conducive toward the deposition of medium-sized Ni nanoparticles confined into the nanoporous structure. The high Ni dispersion and availability of surface defects and basic sites acted to greatly improve the catalyst’s activity. CFD simulations were used to theoretically predict the catalytic performance given the reactor geometry, whereas COMSOL and ASPEN software were employed to design the models. Both modelling approaches (CFD and process simulation) showed a good validation with the experimental results and therefore confirm their ability for applications related to the prediction of the CO2 methanation behaviour. | Versión del editor: | https://doi.org/10.1016/j.apcatb.2022.121836 | URI: | http://hdl.handle.net/10261/280260 | DOI: | 10.1016/j.apcatb.2022.121836 | ISSN: | 0926-3373 |
Aparece en las colecciones: | (INMA) Artículos |
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