Modeling Pore-Scale Two-Phase Flow: How to Avoid Gas-Channeling Phenomena in Micropacked-Bed Reactors via Catalyst Wettability Modification
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Título: | Modeling Pore-Scale Two-Phase Flow: How to Avoid Gas-Channeling Phenomena in Micropacked-Bed Reactors via Catalyst Wettability Modification |
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Autor/es: | Navarro-Brull, Francisco J. | Gómez, Roberto |
Grupo/s de investigación o GITE: | Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES) |
Centro, Departamento o Servicio: | Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica |
Palabras clave: | Pore-scale | Two-phase flow | Gas-channeling phenomena | Micropacked-bed reactors | Catalyst wettability modification |
Área/s de conocimiento: | Química Física |
Fecha de publicación: | 2018 |
Editor: | American Chemical Society |
Cita bibliográfica: | Industrial & Engineering Chemistry Research. 2018, 57(1): 84-92. doi:10.1021/acs.iecr.7b02493 |
Resumen: | A model capable of providing a reliable estimation of two-phase flow dynamics and mass-transfer coefficients, is lacking for the design of micropacked-bed reactors via correlations, especially when the particle size of the bed is around 100 μm. In this work, we present a validation of the use of the phase field method for reproducing two-phase flow experiments found in the literature. This numerical simulation strategy sheds light on the impact of the micropacked-bed geometry and wettability on the formation of preferential gas channels. Counterintuitively, to homogenize the two-phase flow hydrodynamics and reduce radial mass-transfer limitations, solvent wettability of the support needs to be restricted, showing best performance when the contact angle ranges to 60° and capillary forces are still dominant. The tuning of gas–liquid–solid interactions by surface wettability modification opens a new window of opportunity for the design and scale-up of micropacked-bed reactors. |
Patrocinador/es: | This research was partially funded by the EU project MAPSYN: Microwave, Acoustic and Plasma SYNtheses, under Grant Agreement No. CP-IP 309376 of the European Union Seventh Framework Program. |
URI: | http://hdl.handle.net/10045/74808 |
ISSN: | 0888-5885 (Print) | 1520-5045 (Online) |
DOI: | 10.1021/acs.iecr.7b02493 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | © 2017 American Chemical Society |
Revisión científica: | si |
Versión del editor: | https://doi.org/10.1021/acs.iecr.7b02493 |
Aparece en las colecciones: | INV - GFES - Artículos de Revistas Investigaciones financiadas por la UE |
Archivos en este ítem:
Archivo | Descripción | Tamaño | Formato | |
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2018_Navarro_Gomez_IndEngChemRes_final.pdf | Versión final (acceso restringido) | 5,9 MB | Adobe PDF | Abrir Solicitar una copia |
2018_Navarro_Gomez_IndEngChemRes_accepted.pdf | Accepted Manuscript (acceso abierto) | 2,37 MB | Adobe PDF | Abrir Vista previa |
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