Process and catalyst for selective reduction of nitrogen oxides

Details Process and catalyst for selective reduction of nitrogen oxides Process and catalyst for selective reduction of nitrogen oxides

1989-01-19

1991-10-22

Dees, Carl F.

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

Zeolite or clay, including gallium analogs

Mordenite type

502 74, B01J 2920

Patent

active

050595695

ABSTRACT:
The invention concerns, on one hand, a new zeolitic catalytic composition which comprises a small-pore mordenite present in the form of needles, exchanged with at least one metal chosen from the group consisting of cooper, vanadium, tungsten, iron, colbalt and molybdenum, and on the other hand, use of this catalytic composition as a catalyst for the reduction of nitrogen oxides by ammonia.

REFERENCES:
patent: 4473535 (1984-09-01), Kittrell et al.
patent: 4663300 (1987-05-01), Lester et al.
patent: 4727217 (1988-02-01), Travers et al.
patent: 4910004 (1990-03-01), Hamon et al.

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