Method for the removal of NO x and catalyst therefor

Details Method for the removal of NO x and catalyst therefor Method for the removal of NO x and catalyst therefor

2003-07-18

2008-12-02

Vanoy, Timothy C (Department: 1793)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S239200, C423S245300, C502S073000, C502S074000, C502S300000, C502S302000, C502S305000, C502S324000, C502S325000, C502S349000, C502S353000, C502S355000

Reexamination Certificate

active

07459135

ABSTRACT:
The invention relates to a method for the catalytic reduction of NOxin an NOxcontaining gas using methane in the presence of a catalyst which comprises a palladium-containing zeolite. In this process one uses a zeolite based on rings of 12 oxygen atoms, wherein the zeolite also comprises scandium, yttrium, a lanthanide or a combination thereof. The invention also relates to the catalyst itself and the preparation thereof.

REFERENCES:
patent: 5494878 (1996-02-01), Murakami et al.
patent: 5811067 (1998-09-01), Lecuyer et al.
patent: 6063351 (2000-05-01), Hamon et al.
patent: 05-115751 (1993-05-01), None
patent: 07-323215 (1995-12-01), None
patent: 08-164338 (1996-06-01), None
patent: 09-192486 (1997-07-01), None

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