Method for purifying an oxygen-rich exhaust gas

Details Method for purifying an oxygen-rich exhaust gas Method for purifying an oxygen-rich exhaust gas

1994-02-02

1996-05-07

Straub, Gary P.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

4232453, 423212, 4232132, 4232135, 60274, B01D 5356, B01D 5372, B01D 5394

Patent

active

055143555

ABSTRACT:
A catalyst, for purifying an exhaust gas, is a zeolite catalyst for removing nitrogen oxides, carbon monoxide and hydrocarbons from an oxygen-rich exhaust gas containing the nitrogen oxides, carbon monoxide and hydrocarbons, wherein the zeolite has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 10 or more and contains nickel, or wherein the zeolite has an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of 15 or more, and contains nickel and a rare earth metal or an alkaline earth metal.

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