Selektivni katalyticka redukce NOx uhlovodiky v oxidacni atmosfere na zeolitovych katalyzatorech
Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, Prague
High and stable activity in selective catalytic reduction under real conditions of exhaust gasses exhibit only Co-BEA catalyst developed by ENI and Osaka Gas companies. Although, Fe- and Pt-zeolites also show high activity under real exhaust gas, there is produced high concentration of undesirable CO and N2O. Nevertheless, due to complexity of the reduction of NO with hydrocarbon to nitrogen, the structure and function of the active sites in metallo-zeolites is not completely solved and require further studies.