Reactivation strategies for nucleation-inhibited catalyst beds in continuously operated gas-release reactions from liquids
Uhrig F, Solymosi T, Preuster P, Bösmann A, Wasserscheid P (2023)
Publication Type: Journal article
Publication year: 2023
Journal
DOI: 10.1016/j.ijhydene.2023.10.071
Abstract
In reactions that release gaseous products from liquids, heterogeneous, porous catalysts can be in an active or nucleation-inhibited state as has recently been shown by our group for batch dehydrogenation reactions. This paper investigates this practically highly relevant phenomenon now in a continuous tube reactor for the example of liquid organic hydrogen carrier (LOHC) dehydrogenation. A mechanical stimulus, increase in reaction temperature or decrease in residence time reactivates the inhibited catalyst bed. Furthermore, the experimental results indicate that the dehydrogenation reaction turns into a hydrogenation reaction for thermodynamic reasons as the catalyst bed cools down. Hydrogenation is responsible for the consumption of the gas phase and thus a liquid filling of the pellets, which causes the nucleation-inhibition. Our work reveals new aspects of nucleation-inhibition on catalyst beds and provides insights into the efficient operation of heterogeneous catalytic gas release reactions in which this phenomenon occurs.
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Germany (DE)How to cite
APA:
Uhrig, F., Solymosi, T., Preuster, P., Bösmann, A., & Wasserscheid, P. (2023). Reactivation strategies for nucleation-inhibited catalyst beds in continuously operated gas-release reactions from liquids. International Journal of Hydrogen Energy. https://doi.org/10.1016/j.ijhydene.2023.10.071
MLA:
Uhrig, Felix, et al. "Reactivation strategies for nucleation-inhibited catalyst beds in continuously operated gas-release reactions from liquids." International Journal of Hydrogen Energy (2023).
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