Exhaust gas cleaning catalyst complex and method for producing t

Details Exhaust gas cleaning catalyst complex and method for producing t Exhaust gas cleaning catalyst complex and method for producing t

1995-09-25

1997-12-23

Jones, Deborah

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 64, 502439, 423212, 423235, B01J 2906

Patent

active

057007470

ABSTRACT:
An object is to elevate the NOx cleaning rate and heat resistance of an exhaust gas cleaning catalyst complex which comprises a noble metal catalyst supported on zeolite. Ni is supported in the form of NiO powder on said zeolite. Said NiO acts as a cocatalyst without the coverage of the activation site of the catalyst complex and closure of the gas passage by said NiO so as to elevate the NOx cleaning rate and heat resistance.

REFERENCES:
patent: 4134860 (1979-01-01), Hindin et al.
patent: 4157316 (1979-06-01), Thompson et al.
patent: 4171287 (1979-10-01), Keith
patent: 4171288 (1979-10-01), Keith et al.
patent: 4637995 (1987-01-01), DeAngelis et al.
patent: 4675308 (1987-06-01), Wan et al.
patent: 4738947 (1988-04-01), Wan et al.
patent: 5039650 (1991-08-01), Yamada et al.

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