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The reduction of lean NOx using ethanol in simulated diesel engine exhaust was carried out over Ag/Al2O3 catalysts in the presence of H2O and SO2. The Ag/Al2O3 catalysts are highly active for the reduction of lean NOx by ethanol but the reaction is accompanied by side reactions to form CH3CHO, CO along with small amounts of hydrocarbons (C3H6, C2H4, C2H2 and CH4) and nitrogen compounds such as NH3...
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