A ROLE OF SURFACE NITRITE AND NITRATE COMPLEXES IN NOX SELECTIVE CATALYTIC REDUCTION BY HYDROCARBONS UNDER OXYGEN EXCESS

Authors
SADYKOV VA BARON SL MATYSHAK VA ALIKINA GM BUNINA RV ROZOVSKII AY LUNIN VV LUNINA EV KHARLANOV AN IVANOVA AS VENIAMINOV SA
Citation
Va. Sadykov et al., A ROLE OF SURFACE NITRITE AND NITRATE COMPLEXES IN NOX SELECTIVE CATALYTIC REDUCTION BY HYDROCARBONS UNDER OXYGEN EXCESS, Catalysis letters, 37(3-4), 1996, pp. 157-162
Citations number
29
Categorie Soggetti
Chemistry Physical
Journal title
Catalysis letters → ACNP
ISSN journal
1011372X
Volume
37
Issue
3-4
Year of publication
1996
Pages
157 - 162
Database
ISI
SICI code
1011-372X(1996)37:3-4<157:AROSNA>2.0.ZU;2-P
Abstract
NO adsorption over three types of catalytic systems, such as cation-ex changed zeolites, transition metal oxides supported on gamma-Al2O3, an d partially stabilised tetragonal ZrO2 (PSZ) was studied by using the TPD method. NO forms several surface complexes having different desorp tion temperatures. TPD results compared with catalytic properties of t hese systems in the selective reduction of NOx by propane under oxygen excess showed that strongly bound nitrites and nitrates appeared to b e true intermediates in this reaction.