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.

Picture: Clean Circles

Electrochemical 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.

Picture: Clean Circles

Thermochemical reduction

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.

Milestones

  • Define process conditions and range of parameter values
  • Setup of a rough kinetic and thermodynamic database from parameter studies
  • Setup of a detailed kinetic and thermodynamic database from parameter studies
  • Analyze coupled transport and thermodynamic reduction processes
  • Complete all steps along the process chain for the thermochemical and electrochemical reduction

Research area coordination

  Name Contact
Prof. Dr. Ulrike Kramm
+49 6151 16-20356
Prof. Dr. Olaf Deutschmann
+49 721 608-43064