Selective catalyst reduction wit pox reactor for engine exhaust

Details Selective catalyst reduction wit pox reactor for engine exhaust Selective catalyst reduction wit pox reactor for engine exhaust

1998-12-18

2000-10-31

Denion, Thomas

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

60303, 60288, 60324, F01N 300

Patent

active

061384542

ABSTRACT:
An exhaust stream aftertreatment system that selectively reduces NOx emissions during lean-burn operation of an internal combustion engine is provided. The apparatus includes a partial oxidation reactor having a fuel source, an ignition device, and various values. The partial oxidation reactor is disposed in the exhaust pipe of automobile between the engine and the threeway catalyst. A light-off catalyst is provided adjacent to the engine, upstream from the partial oxidation reactor. The three-way catalyst and the light-off catalyst are typical automotive catalysts having a substrate plated with a precious metal to facilitate the oxidation of hydrocarbons (HC) and carbon monoxide (CO) as well as the reduction of nitrogen monoxide and nitrogen dioxide (NOx). The partial oxidation reactor is adapted to operate while the internal combustion engine is producing high levels of NOx or while the engine is operating in a lean burn regime.

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Presentation by Arthur D. Little, Inc. entitled "Application of POX Fuel Processor to Spark-Ignition Engines" presented to Chrysler Corporation on Feb. 26, 1997 (pp. 10, and 12-15).

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