Magnetically enhanced electrochemical fluidized bed reactors for electro-enzymatic syntheses including gaseous phases
The main objective of the research project is the development, characterization and exemplary application of a magnetically enhanced electrochemical fluidized bed reactor for electro-enzymatic synthesis. The reactor will realize a novel variant of a particle based electrochemical reactor combining the advantages of the very high volume specific electrode surface of particle electrodes with the good mixing and mass transfer properties of e.g. bubble column reactors. The beneficial combination results from the fluidization of the particle electrode while at the same time keeping a conductance due to a magnetically induced chaining of the particles. In comparison to reactors applying numbering up of flat electrodes, the scale-up of a particle electrode is simple and economic. The efficiency of the novel reactor concept for electro-enzymatic synthesis will be demonstrated by the in-situ generation of hydrogen peroxide which is required for oxyfunctionalisation reactions using peroxygenases. The whole project will be hallmarked by a close feedback between experimental results and multiphysics modelling approaches.
Publications
Tschöpe A, Franzreb M (2021) Influence of non-conducting suspended solids onto the efficiency of electrochemical reactors using fluidized bed electrodes. Chemical Engineering Journal: https://doi.org/10.1016/j.cej.2021.130322
Klaiber M, Tschöpe A, Cu K, Waibel I, Heißler S, Franzreb M, Lahann J (2022) Multifunctional Core–Shell Particle Electrodes for Application in Fluidized Bed Reactors. ACS Applied Engineering Materials: https://doi.org/10.1021/acsaenm.2c00072
Sapotta B, Schwotzer M, Franzreb M (2022) Practical Insights into the Impedance Response of Interdigitated Electrodes: Extraction of Relative Static Permittivity and Electrolytic Conductivity. Electroanalysis: https://doi.org/10.1002/elan.202200102
Greifenstein R, Ballweg T, Hashem T, Gottwald R, Achauer D, Kirschhöfer F, Nusser M, Brenner-Weiß G, Sedghamiz E, Wenzel W, Mittmann E, Rabe K, Niemeyer C, Franzreb M, Wöll C (2022) MOF-Hosted Enzymes for Continuous Flow Catalysis in Aqueous and Organic Solvents. Angewandte Chemie: https://doi.org/10.1002/anie.202117144
Bolat S, Greifenstein R, Franzreb M und Holtmann D (2023) Process intensification using immobilized enzymes. Physical Sciences: https://doi.org/10.1515/psr-2022-0110
Sayoga G, Abt M, Teetz N, Bueschler V, Liese A, Franzreb M, Holtmann D (2023) Quantitative and non-quantitative assessments of enzymatic electrosynthesis: a case study of parameter requirements. ChemElectroChem: e202300226. https://doi.org/10.1002/celc.202300226
Abt M, Franzreb M, Jestädt M, Tschöpe A (2023) Three-phase fluidized bed electrochemical reactor for the scalable generation of hydrogen peroxide at enzyme compatible conditions. Chemical Engineering Journal: https://doi.org/10.1016/j.cej.2023.146465
Partners
Karlsruhe Institute of Technology
Institute of Functional Interfaces
People
Prof. Dr. Matthias Franzreb
Karlsruhe Institute of Technology
Institute of Functional Interfaces
Dr.-Ing André Tschöpe
Karlsruhe Institute of Technology
Institute of Functional Interfaces
Michael Abt
Karlsruhe Institute of Technology
Institute of Functional Interfaces