Method and emission control system for catalytically...

Details Method and emission control system for catalytically... Method and emission control system for catalytically...

2007-07-10

2007-07-10

Johnson, Edward M. (Department: 1754)

Chemistry of inorganic compounds

Modifying or removing component of normally gaseous mixture

Nitrogen or nitrogenous component

Reexamination Certificate

active

10204898

ABSTRACT:
A method and an emission control system are for catalytically reducing nitrogen oxides in the exhaust gas of a combustion system, especially a diesel motor. An oxidation catalyst is arranged upstream in relation to the reduction catalyst and in the exhaust gas channel. A reaction agent for decomposing nitrogen oxides according to the method of the selective catalytic reduction is added according to the temperature and upstream or downstream in relation to the oxidation catalyst and upstream in relation to the reduction catalyst. The selectivity of the oxidation catalyst is used for decomposing nitrogen oxides to form molecular nitrogen.

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Martin Aust, Rainer Tost, Gerhard Wissler, Dr. Stefan Fischer and Dr. Jürgen Zürbig; “Exhaust Gas Aftertreatment System To Meet EURO IV Emission Standards For Diesel Passenger Cars”; pp. 269-289.
Dr. Eberhard Jacob, Gerhard Emmerling, Andreas Döring, Ulrich Graf, Michael Harris, Dr. Johan A. A. Van Den Tillaart and Bernd Hupfeld; Reduction of NOxFrom HD Diesel Engines With Urea SCR Compact Systems (Controlled Diesel Catalyst); pp. 366-386.

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