Tuning catalyst performance in the SILP-catalyzed gas-phase hydroformylation of but-1-ene by choice of the ionic liquid

Schörner M, Schönweiz A, Vignesh S, Mokrushina L, Thommes M, Franke R, Haumann M (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Journal of Ionic Liquids Elsevier

Book Volume: 3

Article Number: 100061

Journal Issue: 2

DOI: 10.1016/j.jil.2023.100061

Abstract

For the industrially relevant hydroformylation of but‑1-ene the concept of supported ionic liquid phase (SILP) has been applied previously. In this work, we have studied the influence of the type of ionic liquid (imidazolium and phosphonium based cations, various anions) on the solubility of the three reagents but‑1-ene, carbon monoxide and hydrogen. For the olefin, the predicted solubility values were determined using the COSMO-RS software tool. These data were compared to the experimentally determined values. A correlation between the predicted solubility and the observed activity within similar ILs could be observed. The highest activity could be obtained with the IL [N1888][NTf2]. A variation of the olefin chain length supported the observed correlation between solubility and activity. With increasing chain length, the activity of the SILP catalyst also increased. For the undesired consecutive reaction leading to aldols it was found that the substrate solubility does not significantly influence the activity or hydrocarbon accumulation under the used reaction conditions. The anion had a more pronounced effect on the accumulation of aldols, with hydrophilic Cl− and [EtOSO3]− showing lowest accumulation as well as aldol formation activity, while [NTf2]− showed highest values for both accumulation and formation activity. It was shown that the Kamlet-Taft-parameter β is a suitable value to be correlated with activity and accumulation for different ILs.

Authors with CRIS profile

Markus Schörner Lehrstuhl für Chemische Reaktionstechnik Andreas Schönweiz Lehrstuhl für Chemische Reaktionstechnik Liudmila Mokrushina Lehrstuhl für Thermische Verfahrenstechnik Matthias Thommes Lehrstuhl für Thermische Verfahrenstechnik Marco Haumann Lehrstuhl für Chemische Reaktionstechnik

Involved external institutions

Evonik Operations GmbH DE Germany (DE)

How to cite

APA:

Schörner, M., Schönweiz, A., Vignesh, S., Mokrushina, L., Thommes, M., Franke, R., & Haumann, M. (2023). Tuning catalyst performance in the SILP-catalyzed gas-phase hydroformylation of but-1-ene by choice of the ionic liquid. Journal of Ionic Liquids, 3(2). https://dx.doi.org/10.1016/j.jil.2023.100061

MLA:

Schörner, Markus, et al. "Tuning catalyst performance in the SILP-catalyzed gas-phase hydroformylation of but-1-ene by choice of the ionic liquid." Journal of Ionic Liquids 3.2 (2023).

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