Clean Circles
Research Area 1 focuses on the reduction of iron oxide in order to store electric energy obtained from renewable sources. Reduction is investigated in two different approaches: electrochemical and thermochemical reduction.
The electrochemical reduction of iron oxides dissolved in ionic liquids is investigated regarding the reaction kinetics and thermodynamics in half-cells. Phase transitions during dissolving iron and its reductive separation are studied in full cells and a Taylor-Couette test bench. Results are used to develop reactor concepts.
The sequence of investigations of thermal reduction processes ranges from heterogeneous reaction kinetics to flow reactors, in which chemical reactions couple with physical transport processes, to fluidized beds.
Name | Contact | |
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![]() | Prof. Dr. Ulrike Kramm | ulrike.kramm@tu-... +49 6151 16-20356 |
![]() | Prof. Dr. Olaf Deutschmann | deutschmann@kit.edu +49 721 608-43064 |
Experimental investigation of iron and iron oxide particle clouds during thermo-chemical oxidation and reduction (B. Böhm)
Development of a kinetic model based on experimental investigations of the thermochemical reduction/oxidation of iron oxide/iron (O. Deutschmann)
Thermo-chemical reduction/oxidation in fluidized beds (B. Epple)
Dissolution and electrochemistry of iron oxides in ionic liquids and deep eutectic solvents (B. Etzold)
None-intrusive, time-resolved diagnostics of iron based micro particles undergoing thermo-chemical reduction or oxidation (D. Geyer)
In situ and operando hard X-ray studies on iron and iron oxide microparticles undergoing reduction or oxidation (Grunwaldt)
Dissolution and motion dynamics of metallic microparticles in ionic shear flows (J. Hussong)
Influence of oxidation and reduction conditions on iron signatures as followed by Mössbauer spectroscopy (U. Kramm)
Structure-property relationships of iron particles and its oxides (H. Nirschl)
Kinetic model development for iron particle thermo-chemical reduction/oxidation and investigations of dust firing in CFD simulations (U. Riedel)
Modeling of the reaction-transport coupling for single, iron-based microparticles undergoing thermo-chemical reduction or oxidation (A. Scholtissek)