Catalytic reduction of nitrogen oxide emissions with MCM-49 and

Details Catalytic reduction of nitrogen oxide emissions with MCM-49 and Catalytic reduction of nitrogen oxide emissions with MCM-49 and

1997-12-15

2000-11-07

Dunn, Tom

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Mixture is exhaust from internal-combustion engine

423212, 4232132, 4232391, 4232392, C01B 2100

Patent

active

06143261&

ABSTRACT:
MCM-56 and MCM-49 have been demonstrated to be effective catalysts for the reduction of nitrogen oxide (NO.sub.x) emissions in a net oxidizing environment such as Selective Catalytic Reduction or lean burn engine exhaust applications. MCM-56 and MCM-49 can be utilized as a component of a spherical or cylindrical catalyst particle or as a wash coat on a ceramic or metallic monolith. Optionally, a transition metal such as copper, can be added to the catalyst for improved activity.

REFERENCES:
patent: 5254322 (1993-10-01), Bhore et al.
patent: 5552129 (1996-09-01), Farnos et al.
patent: 5589147 (1996-12-01), Farnos et al.

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