Catalyst for the reduction of nitrogen oxides from waste gases a

Details Catalyst for the reduction of nitrogen oxides from waste gases a Catalyst for the reduction of nitrogen oxides from waste gases a

1991-10-02

1992-12-22

Konopka, Paul E.

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

Catalyst or precursor therefor

Inorganic carbon containing

423239, 502159, 502180, B01J 2118, B01J 2364, B01J 3106, C01B 3110

Patent

active

051734664

ABSTRACT:
A carbon- and nitrogen-based catalyst consisting essentially of active carbon or active coke and comprising at least 90% by weight of graphite structures containing at least 10% of pores larger than 100 nm in diameter and having incorporated therein an isocyanate which forms C-N-ring structures, the percentage graphite content being at least 90% by weight. The catalayst is especially effective in the low temperature reduction of nitrogen oxides in waste gases.

REFERENCES:
patent: 4067956 (1978-01-01), Franklin et al.
patent: 4992404 (1991-02-01), Gruhl et al.
patent: 5064801 (1991-11-01), Jungten et al.

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