FIELD: gas treatment. SUBSTANCE: exhausted or fresh alumino-nickel methanation catalyst, designed to remove carbon oxides from gases, is utilized as catalyst removing nitrogen oxides from gases at 150-250 C and gas volume velocities from 1000 to 4000 $$$. EFFECT: enlarged catalyst base for nitrogen oxides' removal. 1 tbl
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Authors
Dates
1997-12-27—Published
1994-04-12—Filed