Effect of pretreatments in various atmospheres on the transient DeNO{sub x} activity of a Cu-MFI catalyst

Journal Article · Mon Apr 15 00:00:00 EDT 1996 · Journal of Catalysis

DOI:https://doi.org/10.1006/jcat.1996.0118· OSTI ID:447641

Gaudin, C; Duprez, D ^[1]; Mabilon, G; Prigent, M ^[2]

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1. Universite de Poitiers (France)
2. Institut Francais du Petrole, Rueil Malmaison (France)

Selective catalytic reduction of NO{sub x} with hydrocarbons (propane and propene) (HC) over 1.47 wt% Cu-MFI (Si/Al = 27) catalyst in the was investigated over the range 473-723 K. Both steady-state and transient activities were evaluated. Propene gives the highest NO conversion at 673 K while propane is a reducer which is much better at 573-623 K (under steady-state conditions). The relationship of pretreatment in HC or HC + NO to transient activity was investigated by comparing NO conversion in the presence of O{sub 2} for different pretreatments. Transient formation of N{sub 2} and CO{sub 2} is observed for reactions of pretreated catalyst with NO and O{sub 2}. 38 refs., 10 figs., 4 tabs.

• OSTI ID: 447641
• Journal Information: Journal of Catalysis, Vol. 160, Issue 1; Other Information: PBD: 15 Apr 1996
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
40 CHEMISTRY
ZEOLITES
CATALYTIC EFFECTS
COPPER
NITROGEN OXIDES
SELECTIVE CATALYTIC REDUCTION
PROPANE
OXIDATION
PROPYLENE
CATALYSTS