Jennie Seckendorff (geb. Pottbäcker)

Dr.-Ing. Jennie Seckendorff (geb. Pottbäcker)

Lehrstuhl I für Technische Chemie
Technische Universität München
Lichtenbergstr. 4
D-85747 Garching
Germany

Email: jennie.seckendorff@ch.tum.de

Werdegang

Forschungsprojekt

Fixed-bed reactors are numerously employed in the chemical industry, where they contain random packed shaped bodies or structured packings. Over decades, shaped catalyst bodies were produced by extrusion and tableting methods. However, these production techniques are very limited in the variability of geometries that can be made. On the contrary, geometrical optimized shapes are thought to have highly improved properties e.g. concerning pressure drop, residence time distribution, heat and mass transfer. With upcoming 3d printing, manufacturing techniques are available that have hardly no limitations in complexity of the produced parts. It is thus to be investigated if 3d printing can be used to produce carriers and catalytically active shaped bodies with improved shapes to be used in fixed-bed reactors.

The project is divided into three interdependent subtopics. In the first part, different 3d printing techniques (binder jetting and stereolithography) were investigated due to their versatility in printing pure alumina oxide catalyst carriers having sufficient mechanical strength and high BET surface areas. The second subtopic covers the medium scale production of inert shaped bodies using 3d printing and other manufacturing techniques having known and newly developed shapes, the experimental preparation of packings thereof and the subsequent evaluation of pressure drop and residence time in a fluid dynamic testing setup. This subtopic is topped off by numerical studies including packing generation and fluid dynamic simulations (OpenFOAM™) in order to screen possible shapes and consequently find optimal geometries. Thereby, the optimization is focused on both: shapes that could still be produced by tableting and/or extrusion, and those requiring new production techniques such as 3d printing.

Veröffentlichungen

T. Ludwig, J. von Seckendorff, M. Tonigold, R. Fischer, C. Troll, B. Rieger, O. Hinrichsen,
Additive manufacturing of Al₂O₃-based carriers for heterogeneous catalysis, submitted.

J. Pottbäcker, O. Hinrichsen,
Experimental Study on the influence of the Filling Method and Particle Material on the Packed-Bed Porosity,
Chem. Ing. Tech. 2017, 89, 454-458.

F. Haseidl, J. Pottbäcker, O. Hinrichsen,
Gas-Liquid Mass Transfer in a Rotor-Stator Spinning Disc Reactor: Experimental Study and Correlation,
Chem. Eng. Process. 2016, 104, 181-189.

Konferenzbeiträge

Vorträge:

J. Pottbäcker, N. Szesni, R. Fischer, O. Hinrichsen
Shape Optimization of Catalyst Carriers and their Manufacturing using 3D Printing Techniques
67^th Lindau Nobel Laureate Meetings (Lindau 2017)

F. Haseidl, J. Pottbäcker, O. Hinrichsen
Characterization of a spinning disc reactor of the rotor-stator type for gas-liquid multiphase operation
European Symposium on Chemical Reaction Engineering 2015 (Fürstenfeldbruck 2015)

Poster:

J. Pottbäcker, O. Hinrichsen
Material, Geometry and Size of Packed Bed Elements and Their Influence on Fluid Dynamics Jahrestreffen Reaktionstechnik 2017 (Würzburg 2017)

T. Ludwig, J. Pottbäcker, O. Hinrichsen, B. Rieger
3D printing of ceramic shaped bodies fort he use as catalyst carriers in heterogeneous catalysis Jahrestreffen Reaktionstechnik 2017 (Würzburg 2017)

F. Haseidl, J. Pottbäcker, O. Hinrichsen
Experimentelle Charakterisierung eines Spinning-Disc-Reaktors nach dem Rotor-Stator-Prinzip für den gasförmig-flüssig-Stoffübergang Jahrestreffen Reaktionstechnik 2016 (Würzburg 2016)

J. Pottbäcker, O. Hinrichsen Erweiterte Parameterstudie zur Fluiddynamik von zufälligen Füllkörperschüttungen Jahrestreffen Reaktionstechnik 2016 (Würzburg 2016)