In the etzoldlab
In the etzoldlab the challenges arising with the needed global energy change and future sustainable feedstock supply for chemical industry are the major research guideline. From the perspective of applied chemistry, a multidisciplinary approach is employed to provide scientific solutions for these challenges, especially for the complex interplay of catalytic materials within a full process or device. In the scientific approach, generic experiments play a dominant role. They allow controlling process conditions from highly idealized towards technically realistic and are combined with diagnostics providing in-situ information. Chemical reaction engineering simulations complement the experiments, giving especially insights into complex mass transfer phenomena and, therefore making a more holistic picture possible. As a future sustainable energy and chemical industry will need a concerted interaction of electrochemical and classical heterogeneous catalyzed processes both are studied. Based on this strategy, the research of the etzoldlab can be divided in three strongly interacting sub-groups: Advanced Catalytic Materials – Electrochemical Energy Conversion Processes – Heterogeneous Catalysis and Processes. More details on the research of these subgroups can be found in the sections below.
With our research we are part of the following huger or collaborative research activities:
The research in heterogeneous catalysis bridges from screening towards detailed mechanistic studies as also from intrinsic kinetics to full process consideration. In this sense, transient-response-studies including isotope labeling (SSITKA), in-situ DRIFT and Raman spectroscopy are employed as also long-term catalyst studied in continuously operated rigs. These insights are complemented by kinetic and thermodynamic simulation as also flow sheeting. The later one gives insights how changes in catalyst activity and selectivity affect the up- and down-stream processes and e.g. total energy consumption or feedstock efficiency. Chemical conversions studied belong to the base chemical and gas phase sector. The focus is on partial oxidations like oxidative dehydrogenation and CO/CO2/H2 conversion to methanol and Fischer-Tropsch products.
- B. Kommoß, S. Klemenz, F. Schmitt, E. Hocke, K. Vogel, A. Drochner, B. Albert, B. J.M. Etzold and H. G. Vogel “ Heterogeneously Catalyzed Hydrogenation of Supercritical CO2 to Methanol”. Chem. Eng. Technol. 40, (2017) 1907.
- S. Knoche, M. Heid, N. Gora, D. Ohlig, A. Drochner, H. Vogel and B.J.M. Etzold, “Activity Hysteresis during Cyclic Temperature-Programmed Reactions in the Partial Oxidation of Acrolein to Acrylic Acid”. Chem. Eng. Technol. 40, (2017) 2084.
- M. Heid, S.F. Knoche, N.S.A. Gora, D. Ohlig, A. Drochner, B.J.M. Etzold and H.G. Vogel, “Dynamics of Bulk Oxygen in the Selective Oxidation of Acrolein”. ChemCatChem 40, (2016) 2390.
A) Experimentally determined and simulated conversion of acrolein from steady‐state measurements and cyclic TPReaction experiment on 50Mo8V2W1.5Ox. The arrows mark the curve of the positive (β = 10 °C min−1) and negative (β = −10 °C min−1) heating rate; B) Process concept for synthesis of CH3OH from CO2 and H2 making use of in-situ phase separation.