Modeling Pore-Scale Two-Phase Flow: How to Avoid Gas-Channeling Phenomena in Micropacked-Bed Reactors via Catalyst Wettability Modification
| العنوان: | Modeling Pore-Scale Two-Phase Flow: How to Avoid Gas-Channeling Phenomena in Micropacked-Bed Reactors via Catalyst Wettability Modification |
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| المؤلفون: | Roberto Gómez, Francisco José Navarro-Brull |
| المساهمون: | Universidad de Alicante. Departamento de Química Física, Universidad de Alicante. Instituto Universitario de Electroquímica, Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES) |
| المصدر: | RUA. Repositorio Institucional de la Universidad de Alicante Universidad de Alicante (UA) |
| بيانات النشر: | American Chemical Society, 2018. |
| سنة النشر: | 2018 |
| مصطلحات موضوعية: | Work (thermodynamics), Materials science, Capillary action, General Chemical Engineering, Flow (psychology), Analytical chemistry, 02 engineering and technology, 7. Clean energy, Industrial and Manufacturing Engineering, Two-phase flow, Contact angle, 020401 chemical engineering, Phase (matter), Química Física, 0204 chemical engineering, Pore-scale, Computer simulation, Micropacked-bed reactors, General Chemistry, Mechanics, Gas-channeling phenomena, 021001 nanoscience & nanotechnology, Wetting, Catalyst wettability modification, 0210 nano-technology |
| الوصف: | 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. 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. |
| اللغة: | English |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c395a0b5b995ef0c0dcd68e2ef72814d https://hdl.handle.net/10045/74808 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....c395a0b5b995ef0c0dcd68e2ef72814d |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |