1996-10-01

Comparison of De-NOx and Adsorber Catalysts to Reduce NOx - Emissions of Lean Burn Gasoline Engines 962046

A comparison of two different types of NOx reducing catalysts will be worked out.
The potential of two De-NOx catalysts using engine out hydrocarbon emissions for NOx conversion will be shown by variation of different engine parameters. An analysis of the hydrocarbon species upstream and downstream catalyst will demonstrate, which components are responsible for the NOx reduction in the exhaust gas of a lean burn engine.
By variation of different parameters during adsorbtion and regeneration phases of the adsorber catalyst the efficiency in NOx reduction will be optimized.
An assessment of the suitability for lean burn engines will consider the emission reduction efficiency as well as the influence on engine fuel consumption.

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