Dynamic Modeling of a Methanization Plant

Andre Bader¹, Sindy Bauersfeld¹, Christian Brunhuber², Bernd Meyer¹

¹TU Bergakademie Freiberg, Fuchsmuehlenweg 9, D-09599 Freiberg
²Siemens AG, Energy Solutions, Freyeslebenstraße 1, D-91058 Erlangen

The chemical and physical modeling and transient simulation of a methanization plant with chemical reactors is useful for dimensioning, optimization, operation and analyzing of time critical processes. The paper introduces the results of the development of a dynamic model for a commercial methanization process. The discussed models base on the free Modelica language and Dymola as user interface. The methanization plant consists of 3 adiabatic fixed bed reactors and steam generation units for heat recovery. Calculation results are shown for the dynamic behavior of the methanization plant at a load change.