Abstract: PL-7 Механизм реакций селективного восстановления оксидов азота углеводородами в избытке кислорода: интермедиаты, их реакционная способность и маршруты трансформации Main features of the mechanism of NOx selective reduction by hydrocarbons (methane, propane, propylene) in the excess of oxygen catalyzed by systems containing transition metal cations are considered. Stationary and unsteady-state kinetic experiments combined with in situ FfIRS and TPD allowed to prove that in the realistic operation temperature range, surface nitrate complexes are key intermediates. The factors determining their structure, bonding strength, reactivity and routes of reductive transformation under the action of hydrocarbons were assessed. The routes of hydrocarbons activation for the systems of interest were considered as well. Schemes of the reaction mechanism for basic types of reducing agents and catalysts were suggested.

Cite: Sadykov V.A. , Lunin V.V. , Ross J.R.H.
Механизм реакции селективного каталитического восстановления оксидов азота углеводородами в избытке кислорода: интермедиаты, их реакционная способность и маршруты трансформации
VI Russian Conference on Catalytic Reaction Mechanisms 01-05 Oct 2002