A kinetic model of standard selective catalytic reduction of NO by NH3 on single sites
Artikel i vetenskaplig tidskrift, 2011

Reduction of NO by NH3 in the presence of O-2 may occur on single Fe or Cu atoms or dimers incorporated into the inner walls of a zeolite. Although this process is of considerable intrinsic interest as an example of complex reactions running on single sites and is also important from the perspective of environmental chemistry, its mechanism is still open for debate. One of the likely schemes of the process implies the formation of N-2 and H2O via the reaction of gas-phase NO and adsorbed NH3. The author presents a detailed analysis of the steady-state kinetics corresponding to this scheme. The model employed includes eleven elementary steps. The results obtained allow one to interpret the apparent reaction orders observed experimentally.

oxygen

orders

ammonia

H2O

NH3

Single catalytic sites

Kinetics

NO

fe-zsm-5

Surface chemical reactions

n2o decomposition

Reaction

O-2

N-2

Författare

Vladimir Zhdanov

Kompetenscentrum katalys (KCK)

Chalmers, Teknisk fysik, Kemisk fysik

Reaction Kinetics, Mechanisms and Catalysis

1878-5190 (ISSN)

Vol. 103 1 11-18

Ämneskategorier

Kemi

DOI

10.1007/s11144-011-0285-4

Mer information

Senast uppdaterat

2020-09-07