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https://doi.org/10.21256/zhaw-4705| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Evolution of water diffusion in a sorption-enhanced methanation catalyst |
| Authors: | Delmelle, Renaud Terreni, Jasmin Remhof, Arndt Heel, Andre Proost, Joris Borgschulte, Andreas |
| DOI: | 10.21256/zhaw-4705 10.3390/catal8090341 |
| Published in: | Catalysts |
| Volume(Issue): | 8 |
| Issue: | 9 |
| Issue Date: | Aug-2018 |
| Publisher / Ed. Institution: | MDPI |
| ISSN: | 2073-4344 |
| Language: | English |
| Subjects: | CO2 methanation; Catalysis; Water sorption; Water diffusion |
| Subject (DDC): | 540: Chemistry |
| Abstract: | Sorption-enhanced methanation has consequent advantages compared to conventional methanation approaches; namely, the production of pure methane and enhanced kinetics thanks to the application of Le Châtelier’s principle. In this paper, we address the question of the long-term stability of a sorption-enhanced methanation catalyst-support couple: Ni nanoparticles on zeolite 5A. Compared to most conventional methanation processes the operational conditions of sorption-enhanced methanation are relatively mild, which allow for stable catalyst activity on the long term. Indeed, we show here that neither coking nor thermal degradation come into play under such conditions. However, a degradation mechanism specific to the sorption catalysis was observed under cyclic methanation/drying periods. This severely affects water diffusion kinetics in the zeolite support, as shown here by a decrease of the water-diffusion coefficient during multiple cycling. Water diffusion is a central mechanism in the sorption-enhanced methanation process, since it is rate-limiting for both methanation and drying. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/10568 |
| Fulltext version: | Published version |
| License (according to publishing contract): | CC BY 4.0: Attribution 4.0 International |
| Departement: | School of Engineering |
| Organisational Unit: | Institute of Materials and Process Engineering (IMPE) |
| Published as part of the ZHAW project: | SMARTCAT - Entwicklung eines „Smart-Konzepts“ für ein Biogas-Upgrade durch kontinuierliche CO2 Methanisierung |
| Appears in collections: | Publikationen School of Engineering |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Heel - Delmelle 1280 - water diffusion zeolite.pdf | 1.99 MB | Adobe PDF |  View/Open |
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Delmelle, R., Terreni, J., Remhof, A., Heel, A., Proost, J., & Borgschulte, A. (2018). Evolution of water diffusion in a sorption-enhanced methanation catalyst. Catalysts, 8(9). https://doi.org/10.21256/zhaw-4705
Delmelle, R. et al. (2018) ‘Evolution of water diffusion in a sorption-enhanced methanation catalyst’, Catalysts, 8(9). Available at: https://doi.org/10.21256/zhaw-4705.
R. Delmelle, J. Terreni, A. Remhof, A. Heel, J. Proost, and A. Borgschulte, “Evolution of water diffusion in a sorption-enhanced methanation catalyst,” Catalysts, vol. 8, no. 9, Aug. 2018, doi: 10.21256/zhaw-4705.
DELMELLE, Renaud, Jasmin TERRENI, Arndt REMHOF, Andre HEEL, Joris PROOST und Andreas BORGSCHULTE, 2018. Evolution of water diffusion in a sorption-enhanced methanation catalyst. Catalysts. August 2018. Bd. 8, Nr. 9. DOI 10.21256/zhaw-4705
Delmelle, Renaud, Jasmin Terreni, Arndt Remhof, Andre Heel, Joris Proost, and Andreas Borgschulte. 2018. “Evolution of Water Diffusion in a Sorption-Enhanced Methanation Catalyst.” Catalysts 8 (9). https://doi.org/10.21256/zhaw-4705.
Delmelle, Renaud, et al. “Evolution of Water Diffusion in a Sorption-Enhanced Methanation Catalyst.” Catalysts, vol. 8, no. 9, Aug. 2018, https://doi.org/10.21256/zhaw-4705.
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