Activated carbon from polyurethane residues as molecular sieves for kinetic adsorption/separation of CO2/CH4
Por favor, use este identificador para citar o enlazar este ítem:
http://hdl.handle.net/10045/125956
Título: | Activated carbon from polyurethane residues as molecular sieves for kinetic adsorption/separation of CO2/CH4 |
---|---|
Autor/es: | Cruz Jr., Orlando F. | Campello-Gómez, Ignacio | Martinez-Escandell, Manuel | Rambo, Carlos R. | Silvestre-Albero, Joaquín |
Grupo/s de investigación o GITE: | Materiales Avanzados |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Inorgánica |
Palabras clave: | Carbon molecular sieves | CO2 adsorption | Natural gas separation | Adsorption kinetics |
Fecha de publicación: | 6-ago-2022 |
Editor: | Elsevier |
Cita bibliográfica: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 2022, 652: 129882. https://doi.org/10.1016/j.colsurfa.2022.129882 |
Resumen: | Activated carbon-based molecular sieves were synthetized, characterized and their kinetics of adsorption were evaluated to be used in separation processes of CO2/CH4 mixtures. Polyurethane (PU) foams were used as carbon precursors and the PU-derived carbons were physical activated with CO2. All the samples present a preferential adsorption of CO2 over methane in kinetic adsorption experiments. Samples activated at 800 ºC during 6 h exhibited the highest selectivity due to the absence of methane adsorption at lower resident times, which makes those samples very interesting for industrial processes of natural gas purification. Kinetic studies were performed to explain the kinetic profiles obtained, confirming that in the samples with smallest pore size, intraparticle diffusion was the limiting step, evidencing that certain oxygen groups favour CO2 adsorption, whereas adsorption was the limiting step in the samples with wider pores. |
Patrocinador/es: | This research was funded by MINECO (MAT2016-80285-p), GV (PROMETEOII/2014/004), H2020 (MSCA-RISE-2016/NanoMed Project). Financial support from the National Council for Scientific and Technological Development (CNPq-Brazil) is also acknowledged. |
URI: | http://hdl.handle.net/10045/125956 |
ISSN: | 0927-7757 (Print) | 1873-4359 (Online) |
DOI: | 10.1016/j.colsurfa.2022.129882 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2022 Elsevier B.V. |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1016/j.colsurfa.2022.129882 |
Aparece en las colecciones: | Investigaciones financiadas por la UE INV - LMA - Artículos de Revistas |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
---|---|---|---|---|
Cruz_etal_2022_ColloidsSurfA_final.pdf | Versión final (acceso restringido) | 2,89 MB | Adobe PDF | Abrir Solicitar una copia |
Cruz_etal_2022_ColloidsSurfA_preprint.pdf | Preprint (acceso abierto) | 1,07 MB | Adobe PDF | Abrir Vista previa |
Todos los documentos en RUA están protegidos por derechos de autor. Algunos derechos reservados.