Process for the reduction of nitrogen oxides from exhaust gases

Details Process for the reduction of nitrogen oxides from exhaust gases Process for the reduction of nitrogen oxides from exhaust gases

1989-02-16

1990-03-20

Heller, Gregory A.

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

B01J 800, C01B 1700

Patent

active

049100050

ABSTRACT:
A process for the reduction of nitrogen oxides contained in exhaust gases comprising reacting the gases with a reducing agent in the presence of a catalyst, the catalyst being based on carbon and having a carbon content greater than 65% by weight and containing 0.1 to 10% by weight of a sparingly soluble oxide of one or more metal selected from the group consisting of Co, Fe, Ni, Cr, V, Mo, W, Cu, Mn and Ti and having a nitrogen content of from 0.5 to 5% by weight, wherein the molar ratio of the reducing agent to the nitrogen oxide is 0.3 to 0.7.

REFERENCES:
patent: 3887683 (1975-06-01), Abe et al.
patent: 4629609 (1986-12-01), Fruhbuss

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