Bitte benutzen Sie diese Kennung, um auf die Ressource zu verweisen:
http://dx.doi.org/10.18419/opus-12929
Langanzeige der Metadaten
DC Element | Wert | Sprache |
---|---|---|
dc.contributor.author | Beierlein, Dennis | - |
dc.contributor.author | Häussermann, Dorothea | - |
dc.contributor.author | Traa, Yvonne | - |
dc.contributor.author | Klemm, Elias | - |
dc.date.accessioned | 2023-04-11T09:41:55Z | - |
dc.date.available | 2023-04-11T09:41:55Z | - |
dc.date.issued | 2021 | de |
dc.identifier.issn | 1011-372X | - |
dc.identifier.issn | 1572-879X | - |
dc.identifier.other | 1843323915 | - |
dc.identifier.uri | http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-ds-129488 | de |
dc.identifier.uri | http://elib.uni-stuttgart.de/handle/11682/12948 | - |
dc.identifier.uri | http://dx.doi.org/10.18419/opus-12929 | - |
dc.description.abstract | We developed a rapid aging method for Ni/Al2O3 methanation catalysts mimicking the real aging in the actual application. The method is based on hydrothermal deactivation of the catalyst at 600 or 700 °C, which leads to a catalyst with nearly constant conversion after a much shorter time period compared to normal aging. The hydrothermally aged catalysts are characterized by N2 adsorption, X-ray powder diffraction, temperature-programmed reduction and H2 chemisorption. The catalytic performance of the aged catalysts is comparable to the one of a catalyst deactivated in a long-term measurement with up to 720 h on stream. The time needed for reaching a stable conversion can be diminished by rapid aging by a factor of 10. The investigations also showed that the long-term deactivation is caused by Ni particle sintering and that the support pores limit the Ni particle size. | en |
dc.description.sponsorship | Projekt DEAL | de |
dc.language.iso | en | de |
dc.relation.uri | doi:10.1007/s10562-021-03884-2 | de |
dc.rights | info:eu-repo/semantics/openAccess | de |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | de |
dc.subject.ddc | 540 | de |
dc.title | Rapid aging as a key to understand deactivation of Ni/Al2O3 catalysts applied for the CO2 methanation | en |
dc.type | article | de |
dc.date.updated | 2023-03-25T15:41:09Z | - |
ubs.fakultaet | Chemie | de |
ubs.institut | Institut für Technische Chemie | de |
ubs.publikation.seiten | 2908-2919 | de |
ubs.publikation.source | Catalysis letters 152 (2022), S. 2908-2919 | de |
ubs.publikation.typ | Zeitschriftenartikel | de |
Enthalten in den Sammlungen: | 03 Fakultät Chemie |
Dateien zu dieser Ressource:
Datei | Beschreibung | Größe | Format | |
---|---|---|---|---|
s10562-021-03884-2.pdf | 1,55 MB | Adobe PDF | Öffnen/Anzeigen |
Diese Ressource wurde unter folgender Copyright-Bestimmung veröffentlicht: Lizenz von Creative Commons