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Direct synthesis of hydrogen peroxide at additively manufactured fluid guiding elements as structured catalysts

Trinkies, Laura L. ORCID iD icon 1; Ng, Derrick; Xie, Zongli; Hornung, Christian H.; Kraut, Manfred ORCID iD icon 2; Dittmeyer, Roland 2
1 Institut für Mikroverfahrenstechnik (IMVT), Karlsruher Institut für Technologie (KIT)
2 Karlsruher Institut für Technologie (KIT)

Abstract:

To facilitate the change from a centralized to a decentralized production of H2O2 whilst increasing the overall safety of the production, the direct synthesis of H2O2 is currently being investigated as an interesting alternative to the established anthraquinone auto-oxidation process. However, for this approach a reliable and industrially viable solution is needed to immobilise the catalyst inside the reactor system, thus eliminating the need for cost and time intensive post process removal of the catalyst from the product as it is practiced in current existing slurry reactors. In this work we present a route to coat Pd/TiO2 catalyst onto additively manufactured steel substrates via a simple washcoating process. The resulting structured catalysts show good activity towards the direct synthesis reaction and can be considered stable for the herein investigated process, since they do not show any deactivation during repeated measurements, nor was any mass loss of the coating observed. The sustained catalyst performance and the uniform physical properties of the coatings are attributes of the reliability and reproducibility of the coating process.

Zugehörige Institution(en) am KIT Institut für Mikroverfahrenstechnik (IMVT)
Publikationstyp Zeitschriftenaufsatz
Publikationsmonat/-jahr 06.2023
Sprache Englisch
Identifikator ISSN: 0255-2701
KITopen-ID: 1000157721
HGF-Programm 38.03.02 (POF IV, LK 01) Power-based Fuels and Chemicals
Erschienen in Chemical Engineering and Processing - Process Intensification
Verlag Elsevier
Band 188
Seiten Article no: 109353
Vorab online veröffentlicht am 21.03.2023
Nachgewiesen in Dimensions
Scopus
OpenAlex
Web of Science

Verlagsausgabe §
DOI: 10.5445/IR/1000157721
Veröffentlicht am 11.04.2023
Originalveröffentlichung
DOI: 10.1016/j.cep.2023.109353
Scopus
Zitationen: 8
Web of Science
Zitationen: 9
Dimensions
Zitationen: 7
Seitenaufrufe: 146
seit 11.04.2023
Downloads: 188
seit 22.04.2023
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