Treatment of gaseous emissions

Details Treatment of gaseous emissions Treatment of gaseous emissions

2006-06-27

2006-06-27

Johnson, Edward M. (Department: 1754)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

C423S235000, C422S169000

Reexamination Certificate

active

07067092

ABSTRACT:
A reactor chamber forms part of an exhaust system of an internal combustion engine. Within the chamber are electrodes between which there is disposed a bed of active material through which, in use, the exhaust gases pass. In the presence of an electrical discharge, driven by an electrical voltage applied across the electrodes, the active material has a catalytic action in the reduction of nitrogenous oxides in the exhaust and also acts to remove hydrocarbons from the exhaust gases.

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M. Shelef, “Selective Catalytic Reduction of NOxwith N-Free Reductants,” Chem. Rev., 1995, vol. 95, pp. 209-225.

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