F - Mech Eng,Light,Heat,Weapons – 01 – N
Patent
F - Mech Eng,Light,Heat,Weapons
01
N
252/50, 252/86
F01N 3/10 (2006.01) B01D 53/34 (2006.01) B01D 53/94 (2006.01) B01J 23/40 (2006.01) B01J 23/656 (2006.01)
Patent
CA 1067060
ABSTRACT OF THE DISCLOSURE This invention is directed to an equilibrium catalyst for treating oxides of nitrogen, carbon monoxide and unburned hydrocarbons found in exhaust gas streams from an internal combustion engine. The catalyst includes a catalyst substrate, rhodium which has an excellent three way selectivity serving as the equilibrium catalyst, an oxygen storage metal component for maintaining the activity of the equilibrium catalyst during momentary excursions of the exhaust gases into oxygen rich conditions, an active metal component for a water gas and stream reforming process which maintains the overall activity of the catalyst when treating exhaust gases deficient in oxygen, and a component for oxidation of hydrocarbons and carbon monoxide.
254473
Gandhi Haren S.
Shelef Mordecai
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