Process for catalytic reduction of nitrogen oxides

Details Process for catalytic reduction of nitrogen oxides Process for catalytic reduction of nitrogen oxides

1987-10-05

1990-06-19

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

And additional al or si containing component

502 64, 502 79, B01J 2908

Patent

active

049353934

ABSTRACT:
A process for catalytically reducing nitrogen oxides in an exhaust gas such as a combustion gas and a catalyst suitable for use therein. The catalyst comprises a zeolite Y which has been ion exchanged with lithium ions and/or rare earth metal ions, and may be dispersed in an amorphous oxide gel matrix.

REFERENCES:
patent: 3013986 (1961-12-01), Castor
patent: 3210267 (1965-10-01), Plank et al.
patent: 4052337 (1977-10-01), Nishikawa et al.
patent: 4104361 (1978-08-01), Nishikawa et al.
patent: 4258020 (1981-03-01), Ginger
patent: 4564604 (1986-01-01), Iida et al.

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