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Article Dans Une Revue Applied Catalysis B: Environmental Année : 2005

Selective catalytic reduction of nitric oxide with ammonia on Fe-ZSM-5 catalysts prepared by different methods

Résumé

Fe-ZSM-5 catalysts, prepared by different methods, have been characterized by TPR and XRD and tested in the NO-SCR by NH3. The sublimation method leads to the most active catalysts. Nevertheless the preparation starting from Fe(acac)3, which is a preparation easy to implement from an industrial point of view, seems to be a very attractive alternative way. On the most active catalyst, Fe(0.83)subZSM-5, prepared starting from FeCl3, a study of the mechanism was undertaken. In the initial step of the SCR reaction, the oxidation of NO in NO2, the re-oxidation of FeII species in the active iron oxo species is the slow phase.

Domaines

Catalyse

Dates et versions

hal-00178254 , version 1 (10-10-2007)

Identifiants

Citer

Gerard Delahay, David Valade, Ariel Guzman-Vargas, Bernard Coq. Selective catalytic reduction of nitric oxide with ammonia on Fe-ZSM-5 catalysts prepared by different methods. Applied Catalysis B: Environmental, 2005, 55, pp.149-155. ⟨10.1016/j.apcatb.2004.07.009⟩. ⟨hal-00178254⟩
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