SAE technical papers on CD-ROM/SAE technical paper series · 1995 · 38 citations · 8 references
Natural SciencesChemical EngineeringChemistryCatalysisIndustrial ChemistryReaction EngineeringCatalyst DesignCatalyst PreparationCatalytic MaterialsCatalytic Reaction EngineeringNitrogen OxidesNitrogen Oxides ChemistryDiesel Oxidation CatalystsNitrogen Oxide Conversion ProcessesNitrogen Oxide OxidationNitrogen Oxide Reaction MechanismsNitrogen Oxides Reduction
<div class="htmlview paragraph">Two catalyst formulations were tested on a diesel engine. A Fourier Transform Infrared (FTIR) analyzer was used to measure concentrations of nitric oxide (NO) and nitrogen dioxide (NO<sub>2</sub>). Other exhaust gas components were measured by conventional analyzers.</div> <div class="htmlview paragraph">The results indicate that nitrogen oxides (NO<sub>x</sub>) undergo complex chemical reactions in the diesel oxidation catalyst (DOC). The increase of NO<sub>2</sub> occurring at a certain temperature range is accompanied by a decrease of the total NO<sub>x</sub> emission. NO<sub>2</sub> is probably an important itermediate product in the lean NO<sub>x</sub> catalyst reaction chain.</div>
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