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.

n2o decomposition

NH3

oxygen

H2O

orders

O-2

Reaction

Surface chemical reactions

N-2

ammonia

NO

Single catalytic sites

fe-zsm-5

Kinetics

Författare

Vladimir Zhdanov

Chalmers, Teknisk fysik, Kemisk fysik

Kompetenscentrum katalys (KCK)

Reaction Kinetics, Mechanisms and Catalysis

1878-5190 (ISSN)

Vol. 103 11-18

Ämneskategorier

Kemi

DOI

10.1007/s11144-011-0285-4