Enhancement of hydrotermal stability of Co-Mordenite for the SCR of NOx by the adition of lanthanum

LAURA B. GUTIERREZ, LAURA CORNAGLIA, EDUARDO A. LOMBARDO

Seoul, Korea

Congreso; 14th International Congress on Catalysis; 2008

The low hydrothermal resistance of cation-containing zeolites for the HC-SCR have impaired their practical application. In this vein, bimetallic combination of Co-zeolites with a nobel metal (Pt or Pd) has resulted promissory; however, some deactivation proceeds after 50 h on stream.On the other hand, it is well known that rare earth incorporation to Y zeolites increases its stability . In this work, we have studied the effect of lanthanum addition to the mordenite system in order to improve the hydrothermal stability of CoHMordenite for the SCR of NOx with methane.