Reducing NO.sub.x emissions from an engine by selective catalyti

Power plants – Internal combustion engine with treatment or handling of... – Methods

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Details

60286, 423212, 423235, C01B 2100, F01N 320

Patent

active

058097759

ABSTRACT:
Urea or other solid NO.sub.x -reducing reagent is employed in a selective catalytic reduction process on emissions from diesel and lean-burn gasoline engines. The solid reagent is fed to a gas generator that produces a reactant gas by heating. In one embodiment the reactant gas is maintained at elevated temperatures to prevent condensation products from forming. The reactant gas contains ammonia and is fed to the exhaust on an as-needed basis.

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