EP 0969915 A1 20000112 - METHOD FOR REDUCING NITROGEN OXIDES IN EXHAUST GASES CONTAINING OXYGEN, ESPECIALLY EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES
Title (en)
METHOD FOR REDUCING NITROGEN OXIDES IN EXHAUST GASES CONTAINING OXYGEN, ESPECIALLY EXHAUST GASES FROM INTERNAL COMBUSTION ENGINES
Title (de)
VERFAHREN ZUR REDUKTION VON STICKOXIDEN IN SAUERSTOFFHALTIGEN ABGASEN, INSBESONDERE ABGASEN VON VERBRENNUNGSMOTOREN
Title (fr)
PROCEDE DE REDUCTION D'OXYDE D'AZOTE CONTENUS DANS DES GAZ D'EVACUATION CONTENANT DE L'OXYGENE, EN PARTICULIER DANS DES GAZ D'ECHAPPEMENT DE MOTEURS A COMBUSTION INTERNE
Publication
Application
Priority
- DE 19755376 A 19971212
- DE 19821494 A 19980513
- DE 19845944 A 19981006
- EP 9807937 W 19981207
Abstract (en)
[origin: WO9930811A1] The invention relates to a method for reducing nitrogen oxides in an exhaust gas flow, especially exhaust gases from internal combustion engines that are subjected to aftertreatment in a catalytic converter. The inventive method is characterised in that a solid reducing agent is transformed into a gas under the effect of heat and the gas is thermally and/or catalytically broken down in a reaction chamber into reductive products which are then mixed with the exhaust gases which are to undergo reduction.
IPC 1-7
IPC 8 full level
B01D 53/56 (2006.01); B01D 53/94 (2006.01); F01N 3/08 (2006.01); F01N 3/20 (2006.01); F01N 3/24 (2006.01)
CPC (source: EP)
B01D 53/565 (2013.01); B01D 53/9409 (2013.01); F01N 3/2066 (2013.01); F01N 2240/20 (2013.01); F01N 2240/40 (2013.01); F01N 2610/02 (2013.01); F01N 2610/06 (2013.01); F01N 2610/08 (2013.01); F01N 2610/10 (2013.01); Y02T 10/12 (2013.01)
Citation (search report)
See references of WO 9930811A1
Designated contracting state (EPC)
DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9930811 A1 19990624; WO 9930811 A8 19990812; EP 0969915 A1 20000112; JP 2001523165 A 20011120
DOCDB simple family (application)
EP 9807937 W 19981207; EP 98965777 A 19981207; JP 53198799 A 19981207