Wet ion exchanged Fe-USY catalyst for effective N2O decomposition

Zeolite matrix FAU with large channel dissension is applied as good host for iron species and Fe-USY sample is prepared by wet ion exchange method using ferric salt as the iron source. The as-prepared Fe-USY catalyst exhibits quite good activity for N2O decomposition and a 100% conversion (to N-2 and O-2) can be achieved at above 748 K. Besides, Fe-USY shows good durability for N2O decomposition under simulated conditions at a typical nitric acid plant, which demonstrates its potential for future application. (c) 2008 Elsevier B.V. All rights reserved