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

Marinkovic JM, Benders S, Garcia-Suarez EJ, Weiß A, Gundlach C, Haumann M, Küppers M, Blümich B, Fehrmann R, Riisager A (2020)

Publication Type: Journal article

Publication year: 2020

Journal

RSC Advances Royal Society of Chemistry

Book Volume: 10

Pages Range: 18487-18495

Journal Issue: 31

DOI: 10.1039/c9ra09515b

Abstract

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.

Authors with CRIS profile

Alexander Weiß Lehrstuhl für Chemische Reaktionstechnik (CRT) Marco Haumann Lehrstuhl für Chemische Reaktionstechnik (CRT)

Involved external institutions

Technical University of Denmark / Danmarks Tekniske Universitet (DTU) DK Denmark (DK) Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen DE Germany (DE)

How to cite

APA:

Marinkovic, J.M., Benders, S., Garcia-Suarez, E.J., Weiß, A., Gundlach, C., Haumann, M.,... Riisager, A. (2020). Elucidating the ionic liquid distribution in monolithic SILP hydroformylation catalysts by magnetic resonance imaging. RSC Advances, 10(31), 18487-18495. https://doi.org/10.1039/c9ra09515b

MLA:

Marinkovic, Jakob Maximilian, et al. "Elucidating the ionic liquid distribution in monolithic SILP hydroformylation catalysts by magnetic resonance imaging." RSC Advances 10.31 (2020): 18487-18495.

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