B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
B01D 53/94 (2006.01) B01J 23/72 (2006.01) B01J 23/745 (2006.01) B01J 29/56 (2006.01) B01J 29/70 (2006.01) B01J 29/85 (2006.01)
Patent
CA 2685009
A method of converting nitrogen oxides in a gas to nitrogen by contacting the nitrogen oxides with a nitrogenous reducing agent in the' presence of a zeolite catalyst containing at least one transition metal, wherein the zeolite is a small pore zeolite containing a maximum ring size of eight tetrahedral atoms, wherein the at least one transition metal is selected from the group consisting of Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir and Pt.
L'invention concerne un procédé de conversion d'oxydes d'azote présents dans un gaz en azote en mettant en contact les oxydes d'azote avec un agent réducteur azoté en présence d'un catalyseur zéolite contenant au moins un métal de transition, ladite zéolite étant une zéolite dont les pores ont un faible diamètre et ayant une taille maximale de cycle de huit atomes tétraédriques, ledit ou lesdits métaux de transition étant sélectionnés dans le groupe comprenant Cr, Mn, Fe, Co, Ce, Ni, Cu, Zn, Ga, Mo, Ru, Rh, Pd, Ag, In, Sn, Re, Ir et Pt.
Andersen Paul Joseph
Casci John Leonello
Chen Hai-Ying
Collier Jillian Elaine
Fedeyko Joseph Michael
Johnson Matthey Public Limited Company
Ridout & Maybee Llp
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