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  4. Elucidating the ionic liquid distribution in monolithic SILP hydroformylation catalysts by magnetic resonance imaging
 
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Elucidating the ionic liquid distribution in monolithic SILP hydroformylation catalysts by magnetic resonance imaging

Publikationstyp
Journal Article
Publikationsdatum
2020-05-15
Sprache
English
Author
Marinkovic, Jakob Maximilian 
Benders, Stefan 
Garcia-Suarez, Eduardo J. 
Weiß, Alexander 
Gundlach, Carsten 
Haumann, Marco 
Küppers, Markus 
Blümich, Bernhard 
Fehrmann, Rasmus 
Riisager, Anders 
TORE-URI
http://hdl.handle.net/11420/8638
Enthalten in
RSC Advances 
Volume
10
Issue
31
Start Page
18487
End Page
18495
Citation
RSC Advances 31 (10): 18487-18495 (2020-05-15)
Publisher DOI
10.1039/c9ra09515b
Scopus ID
2-s2.0-85085613421
Monolithic silicon carbide supported ionic liquid-phase (SILP) Rh-catalysts have very recently been introduced for gas-phase hydroformylation as an important step toward industrial upscaling. This study investigates the monolithic catalyst system in combination with different impregnation procedures with non-invasive magnetic resonance imaging (MRI). The findings were supported by X-ray microtomography (micro-CT) data of the monolithic pore structure and a catalytic performance test of the catalyst system for 1-butene gas-phase hydroformylation. MRI confirmed a homogeneous impregnation of the liquid phase throughout the full cross-section of the cylindrical monoliths. Consistent impregnations from one side to the other of the monoliths were achieved with a stabilizer in the system that helped preventing inhomogeneous rim formation. External influences relevant for industrial application, such as long-term storage and temperature exposure, did not affect the homogeneous liquid-phase distribution of the catalyst. The work elucidates important parameters to improve liquid-phase catalyst impregnation to obtain efficient monolithic catalysts for industrial exploitation in gas-phase hydroformylation as well as other important industrial processes.
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