Many research considerations of E.ON Kraftwerke concentrate on the optimisation of flue gas purification as integrated overall process. What has to be tested are new technological approaches that are improving the separation efficiencies for all air pollutants but maintain the previous own power requirement. For this purpose, several circuit configuration versions as well as novel purification systems are being investigated.

The improved separation of mercury from the flue gas stands as example for the optimisation of existing technology. The retention is to be increased with the existing flue gas purification technology (DENOX plant, electrostatic precipitator, DESOX plant). To achieve this end, it is necessary to carry out further tests with regard to the reaction behaviour of mercury during the purification stages. Wet electrostatic precipitators are for instance being tested for the reduction of fine dust particles in the scrubbed gas downstream of the scrubbers.

With these research projects, E.ON Kraftwerke would like to set own standards in the field of flue gas purification. These are clearly lower then the often very individual limits that are characterised by local requirements.