Abstract
Catalityc removal of nitrogen oxide from combustion gases Nitrogen oxide conversion to nitrogen over Pt/Al2 O3, Pd/Al2O3, Rh/Al2O3 catalysts was investigated. The results of the catalytic activity investigations, with the iso-x method, showed that NO reduction by methane occurs at a reasonable rate at the temperature range 200-500°C. Alumina-supported Pd, Pt and Rh catalysts have been compared for the selective reduction of NO to N2. All the catalysts showed good activity in NO reduction by methane, giving around 80 - 90% N2 production. At moderate temperatures Pt is the most active catalyst for the removal of NO.
Highlights
Catalityc removal of nitrogen oxide from combustion gasesNitrogen oxide conversion to nitrogen over Pt/Al2O3, Pd/Al2O3, Rh/Al2O3 catalysts was investigated
Nitrogen oxide is a major atmospheric pollutant
The activity was high in the temperature range 350 – 500oC and the total conversion of nitrogen oxide (NO) was achieved at 400oC
Summary
Nitrogen oxide conversion to nitrogen over Pt/Al2O3, Pd/Al2O3, Rh/Al2O3 catalysts was investigated. The results of the catalytic activity investigations, with the iso-x method, showed that NO reduction by methane occurs at a reasonable rate at the temperature range 200- 500oC. Alumina-supported Pd, Pt and Rh catalysts have been compared for the selective reduction of NO to N2. All the catalysts showed good activity in NO reduction by methane, giving around 80 – 90% N2 production. At moderate temperatures Pt is the most active catalyst for the removal of NO. Presented at VII Conference Wasteless Technologies and Waste Management in Chemical Industry and Agriculture, Miêdzyzdroje, 12 – 15 June, 2007
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