Purificn of exhaust gases - using nickel copper on carrier of low surface area to remove no

Verfahren zur verminderung des stickoxidgehaltes eines brennstoffreichen abgasstromes eines verbrennungsmotors

Abstract

The catalyst for reduction of NO content of exhaust gases from ic. engines consists of 40-95 wt. % Ni and 5-60 wt. % Cu on a refractory carrier of surface area 5m2/g max. The carrier is pref. alumina with surface area of 0.1-2 m2/g and the active constituents pref. comprise 5-20 wt. % of the total catalyst. Under net rich fuel conditions, the NO is efficiently removed at high flow rates and the catalysts resist high temps. without sintering and loss of efficiency.

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    Publication numberPublication dateAssigneeTitle
    EP-0555936-A1August 18, 1993Gastec N.V.Procédé de réduction d'oxydes d'azote