Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-4705
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dc.contributor.authorDelmelle, Renaud-
dc.contributor.authorTerreni, Jasmin-
dc.contributor.authorRemhof, Arndt-
dc.contributor.authorHeel, Andre-
dc.contributor.authorProost, Joris-
dc.contributor.authorBorgschulte, Andreas-
dc.date.accessioned2018-09-14T09:43:33Z-
dc.date.available2018-09-14T09:43:33Z-
dc.date.issued2018-08-
dc.identifier.issn2073-4344de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/10568-
dc.description.abstractSorption-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.de_CH
dc.language.isoende_CH
dc.publisherMDPIde_CH
dc.relation.ispartofCatalystsde_CH
dc.rightshttp://creativecommons.org/licenses/by/4.0/de_CH
dc.subjectCO2 methanationde_CH
dc.subjectCatalysisde_CH
dc.subjectWater sorptionde_CH
dc.subjectWater diffusionde_CH
dc.subject.ddc540: Chemiede_CH
dc.titleEvolution of water diffusion in a sorption-enhanced methanation catalystde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementSchool of Engineeringde_CH
zhaw.organisationalunitInstitute of Materials and Process Engineering (IMPE)de_CH
dc.identifier.doi10.21256/zhaw-4705-
dc.identifier.doi10.3390/catal8090341de_CH
zhaw.funding.euNode_CH
zhaw.issue9de_CH
zhaw.originated.zhawYesde_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume8de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.funding.snfNRP70: CO2 Reduction & Reusede_CH
zhaw.webfeedProzesstechnikde_CH
zhaw.funding.zhawSMARTCAT - Entwicklung eines „Smart-Konzepts“ für ein Biogas-Upgrade durch kontinuierliche CO2 Methanisierungde_CH
Appears in collections:Publikationen School of Engineering

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