Determination of residence time distributions in different high pressure gasification processes by radioactive tracers

• Experimental research on residence time behaviour.
• Different feedstocks and geometries for high-pressure partial oxidation.
• Activated argon as radioactive tracer.
• Influence of reactor geometry on quality of measurement results and analysis methods.

High-Pressure Partial Oxidation is a key technology for the usage of flare gases and heavy oil residues. At the test plant of TU Bergakademie Freiberg, it is possible to gasify different gaseous and liquid fuels at pressures up to 100 bar (g). Information on residence time distributions can be gained by using radioactive tracers. The results of measurements for different reactor geometries and feedstocks will be discussed in this paper. Results of radioactive residence time measurements depend strongly on reactor geometry and require different evaluation methods.