Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Nitrogen or nitrogenous component
Patent
1992-08-10
1993-10-19
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Nitrogen or nitrogenous component
423212, B01J 800, C01B 2100, B01D 4700
Patent
active
052543226
ABSTRACT:
A method is provided for reducing NO.sub.x for high flow applications such as NO.sub.x abatement in an exhaust gas from an internal combustion engine operating under lean burn conditions wherein NO.sub.x is reduced by hydrocarbon reductants. The method employs a hydrothermally stable catalyst comprising transition metal-containing ZSM-5 which is prepared by in-situ crystallization of an aggregate comprising ZSM-5 seeds, silica, and a crystalline silicate.
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Bhore Nazeer A.
Dwyer Francis G.
Marler David O.
McWilliams John P.
Heller Gregory A.
Hobbes Laurence P.
McKillop Alexander J.
Mobil Oil Corporation
Santini Dennis P.
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