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  4. Catalytic profile reactor for multimodal Operando measurements during periodic operation
 
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Catalytic profile reactor for multimodal Operando measurements during periodic operation

Citation Link: https://doi.org/10.15480/882.4806
Publikationstyp
Journal Article
Publikationsdatum
2022-12-20
Sprache
English
Author
Espinoza, Diego 
Wollak, Birte 
Sheppard, Thomas 
Dippel, Ann Christin 
Sturm, Marina 
Gutowski, Olof 
Schmidt, Michael 
Korup, Oliver 
Horn, Raimund 
Institut
Chemische Reaktionstechnik V-2 
DOI
10.15480/882.4806
TORE-URI
http://hdl.handle.net/11420/14328
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
Enthalten in
ChemCatChem 
Volume
14
Issue
24
Article Number
e202200337
Citation
ChemCatChem 14 (24): e202200337 (2022-12-20)
Publisher DOI
10.1002/cctc.202200337
Scopus ID
2-s2.0-85143276055
Publisher
Wiley-VCH
Multimodal operando measurement concepts aim to provide structure-activity relations of heterogeneously catalyzed reactions during operation. While the utilization of multiple characterization and spatiotemporally-resolved techniques provides complementary information at relevant time and length scales, different reactor operation modes allow to track catalyst dynamics. However, combining these measurement concepts require complex experimental setups with high demands from a strongly interdisciplinary field of reaction engineering, physics and chemistry. In this study, a fully automated and integrated catalytic profile reactor setup is introduced which is capable of measuring spatiotemporally-resolved species concentration, temperature and catalyst structure information under periodic reaction conditions. The oxidative dehydrogenation of C2H6 to C2H4 over MoO3/γ-Al2O3 was used as a test system. Using the periodic profile approach, the catalytic system was investigated through activity measurements resolved in time and space combined with reactor simulations and operando high-energy X-ray diffraction. The presented catalytic profile reactor setup is a versatile technology, aiming to promote combined and detailed analysis of local catalyst activity and structure, for improved reproducibility and quality of operando measurements.
Schlagworte
heterogeneous catalysis
kinetic modeling
periodic reactor operation
spatiotemporal operando study
X-ray diffraction
DDC Class
600: Technik
620: Ingenieurwissenschaften
Projekt(e)
Projekt DEAL 
Funding Organisations
Bundesministerium für Bildung und Forschung (BMBF) 
Deutsches Elektronen-Synchrotron DESY 
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