EP 1309779 A1 20030514 - METHOD FOR DESULFURIZING A STORAGE MEDIUM
Title (en)
METHOD FOR DESULFURIZING A STORAGE MEDIUM
Title (de)
VERFAHREN ZUR ENTSCHWEFELUNG EINES SPEICHERMEDIUMS
Title (fr)
PROCEDE DESULFURATION D'UN SUPPORT D'ACCUMULATION
Publication
Application
Priority
- DE 0103027 W 20010808
- DE 10040010 A 20000811
Abstract (en)
[origin: WO0214666A1] The invention relates to a method for desulfurizing a ceramic storage medium (10, 12) for sulfur and/or nitrogen oxides that is disposed in a gas flow, especially a nitrogen or sulfur oxide storage medium disposed in the exhaust gas flow of an internal combustion engine, according to which an oxygen-deficient mixture is adjusted to release the stored sulfur oxides into the gas flow. A measuring signal is received by means of an oxygen probe (14) mounted downstream of the storage medium (10, 12) in the direction of the gas flow. The pattern of said measuring signal makes it possible to draw conclusions with respect to the charge of the storage medium (10, 12) with sulfur oxides. The inventive method allows detection of the necessity of desulfurizing the storage medium depending on the charge of the storage medium (10, 12) with sulfur oxides. The inventive method is also used to monitor and control the progression of the initiated desulfurization and to test the terminated desulfurization for its completeness.
IPC 1-7
IPC 8 full level
F02D 45/00 (2006.01); B01D 53/94 (2006.01); B01J 20/34 (2006.01); F01N 3/08 (2006.01); F01N 3/18 (2006.01); F01N 3/20 (2006.01); F01N 3/24 (2006.01); F01N 3/28 (2006.01); F02D 41/02 (2006.01)
CPC (source: EP KR US)
F01N 3/0842 (2013.01 - EP US); F02D 41/02 (2013.01 - KR); F02D 41/028 (2013.01 - EP US); F02D 41/0285 (2013.01 - EP US); F01N 2570/04 (2013.01 - EP US)
Citation (search report)
See references of WO 0214666A1
Designated contracting state (EPC)
DE FR IT SE
DOCDB simple family (publication)
WO 0214666 A1 20020221; DE 10040010 A1 20020221; DE 50111108 D1 20061109; EP 1309779 A1 20030514; EP 1309779 B1 20060927; JP 2004506833 A 20040304; JP 4657575 B2 20110323; KR 100795621 B1 20080117; KR 20030036684 A 20030509; US 2004011028 A1 20040122; US 6854266 B2 20050215
DOCDB simple family (application)
DE 0103027 W 20010808; DE 10040010 A 20000811; DE 50111108 T 20010808; EP 01962616 A 20010808; JP 2002519777 A 20010808; KR 20037001889 A 20030210; US 34401703 A 20030728