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Process for the simultaneous reduction of hydrocarbons, oxygenated organic compounds, carbon monoxide and nitric oxides contained in the exhaust gas of an internal combustion engine and application
Process for the simultaneous reduction of hydrocarbons, oxygenated organic compounds, carbon monoxide and nitric oxides contained in the exhaust gas of an internal combustion engine and application
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机译:同时还原内燃机废气中所含的碳氢化合物,氧化有机化合物,一氧化碳和一氧化氮的方法及应用
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摘要
The amt. of hydrocarbons, oxygen contg. organic cpds. CO and NOx present in the exhaust gas of an internal combustion engine is simultaneously reduced by passing the gas over a catalyst consisting of an inert carrier with a catalytically active coating. The coating contains a high surface area carrier material and, if necessary, one or more non-precious metal cpds. and at least one Pt gp. metal. The exhaust gas contains an excess of O2 and the high surface area carrier material contains an aluminosilicate which after 7 h calcination at 950 degrees C in a synthetic exhaust gas contg. 10 vol.% CO2, 6 vol.% O2, 10 vol.% H2O and balance N2, still has a specific surface 150 m2/g. Also claimed is the use of such a catalyst for reducing such exhaust gas emissions.
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