From Process Technology
The catalytic process lends itself to waste gas, exhaust air and flue gas cleaning. The pollutants are converted by oxidation or reduction, if necessary with the use of an additive. Catalytic processes are usually characterised by lower reaction temperatures than in the case of comparable thermal processes. This permits more efficient process control with a considerably reduced energy input. The catalytic process is exothermic. Depending on the case of use and the level of pollutant loading, the heat is recovered via recuperation or regeneration. For the respective specific application – for the initiation of and support for the reaction – various stable and highly active catalysts are used.
The pollutants are converted on the surface of the catalyst with a further chemical element or a compound. This element or compound is either present or has to be added. With the use of tried and proven catalysts, reliable adherence to the statutory emission values is ensured.