1. Helmholtz-Zentrum Dresden-Rossendorf, Institute of Fluid Dynamics; 01314 Dresden Germany
2. Technische Universität Dresden, Chair of Chemical Reaction Engineering and Process Plant; 01062 Dresden Germany
3. Åbo Akademi University, Laboratory of Industrial Chemistry and Reaction Engineering, Process Chemistry Centre, Dept. of Chemical Engineering; FI-20500 Åbo/Turku Finland
4. Technische Universität Dresden, AREVA Endowed Chair of Imaging Techniques in Energy and Process Engineering; 01062 Dresden Germany