The Rate Determining Step for the Selective Catalytic Reduction of NO By Ammonia

Janssens, Ton V.W.

Tuesday, June 16, 2015

Ballroom B (Lawrence Convention Center)

Ton V.W. Janssens¹, Hanne Falsig¹, Lars F. Lundegaard¹, Poul Georg Moses¹, Peter N.R. Vennestrøm¹, Søren B. Rasmussen¹, Filippo Giordanino², Elisa Borfecchia², Kirill A. Lomachenko^2,3, Lamberti Carlo^2,3, Silvia Bordiga², Anita Godiksen⁴, Susanne L. Mossin⁴ and Pablo Beato¹, (1)Haldor Topsoe A/S, Denmark, (2)University of Turin, Italy, (3)Southern Federal University, Russia, (4)Technical University of Denmark, .

Based on a new reaction scheme for NH₃-SCR, we show that the rate determining step is the activation of NO by oxygen to a nitrate species, and that this is not in contradiction to a very low rate for NO oxidation to NO₂ in the absence of ammonia.

Extended Abstracts:

NAM abstract mechanism.pdf (161.8KB) - Extended Abstract

P-Tu-B-129 The Rate Determining Step for the Selective Catalytic Reduction of NO By Ammonia