Oscillating droplet reactor – towards kinetic investigations in heterogeneous catalysis on a droplet scale

Literature Information

Publication Date 2021-04-15
DOI 10.1039/D0RE00466A
Impact Factor 4.239
Authors

Torsten Klement, Schirin Hanf, Fabian Wolff, Norbert Kockmann, Stephan A. Schunk, Thorsten Röder


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Abstract

In this work we present a new concept of a millistructured capillary reactor setup for contactless kinetic measurements via in-line Raman spectroscopy for three phase reactions in single slugs. With this setup, it is possible to decouple the residence time from the volumetric flow and the reactor length. Catalysts palladium supported on carbon, in the form of Pd nano-particles on graphite fibres as well as in the form of a fixed bed catalysts as particulates of porous carbon, were utilised. A 3D-printed catalyst holder was designed to integrate the catalyst powder with a fixed bed in the capillary. The proof of concept was demonstrated using two test reactions, namely the hydrogenation of nitrobenzene and cinnamaldehyde. Multiple measurements were carried out and a good reproducibility was achieved, which lays the foundation for the application of this 3-phase oscillating droplet reactor as a tool for assessing kinetics with respect to heterogeneously catalysed three phase reactions.

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Source Journal

Reaction Chemistry & Engineering

Reaction Chemistry & Engineering
CiteScore: 0
Self-citation Rate: 8.8%
Articles per Year: 284

Reaction Chemistry & Engineering is an interdisciplinary journal reporting cutting-edge research focused on enhancing the understanding and efficiency of reactions. Reaction engineering leverages the interface where fundamental molecular chemistry meets chemical engineering and technology. Challenges in chemistry can be overcome by the application of new technologies, while engineers may find improved solutions for process development from the latest developments in reaction chemistry. Reaction Chemistry & Engineering is a unique forum for researchers whose interests span the broad areas of chemical engineering and chemical sciences to come together in solving problems of importance to wider society. All papers should be written to be approachable by readers across the engineering and chemical sciences. Papers that consider multiple scales, from the laboratory up to and including plant scale, are particularly encouraged.

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