Global Patent Index - EP 1257736 A1

EP 1257736 A1 2002-11-20 - DESULPHURISATION OF A STORAGE CATALYST BY HEATING

Title (en)

DESULPHURISATION OF A STORAGE CATALYST BY HEATING

Title (de)

ENTSCHWEFELUNG EINES SPEICHERKATALYSATORS DURCH AUFHEIZEN

Title (fr)

DESULFURATION D'UN CATALYSEUR ACCUMULATEUR PAR CHAUFFAGE

Publication

EP 1257736 A1 (DE)

Application

EP 01911381 A

Priority

  • DE 0100270 W
  • DE 10005954 A

Abstract (en)

[origin: WO0159271A1] A method for heating a main catalyst arranged behind at least one pre-catalyst is disclosed, whereby unburnt fuel generated by the engine is introduced into the exhaust gas, before the main catalyst with the simultaneous presence of an excess of air before the main catalyst. The generation of unburnt fuel by the engine is temporally and/or spatially coupled to the generation of an excess of air in the exhaust gas by the engine.

IPC 1-7 (main, further and additional classification)

F01N 3/08; F01N 3/20; F01N 3/22; F01N 3/36; F02D 41/02

IPC 8 full level (invention and additional information)

F01N 3/20 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); F01N 3/08 (2006.01); F01N 3/28 (2006.01); F02D 41/00 (2006.01); F02D 41/02 (2006.01); F02D 41/14 (2006.01); F02D 41/34 (2006.01); F01N 13/02 (2010.01); F01N 13/04 (2010.01)

CPC (invention and additional information)

F02D 41/008 (2013.01); B01D 53/9431 (2013.01); B01D 53/9495 (2013.01); F01N 3/0842 (2013.01); F01N 13/009 (2014.06); F01N 13/011 (2014.06); F02D 41/025 (2013.01); F02D 41/028 (2013.01); F02D 41/1443 (2013.01); F01N 2240/00 (2013.01); F01N 2570/04 (2013.01); Y02T 10/26 (2013.01)

Citation (search report)

See references of WO 0159271A1

Designated contracting state (EPC)

DE FR IT

EPO simple patent family

WO 0159271 A1 20010816; BR 0108148 A 20030121; DE 10005954 A1 20010816; EP 1257736 A1 20021120; JP 2003522874 A 20030729; KR 20020076289 A 20021009; US 2003131588 A1 20030717

INPADOC legal status


2005-11-23 [18R] REFUSED

- Effective date: 20050702

2005-01-26 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20041209

2004-05-26 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION)

- Designated State(s): DE FR IT

2002-11-20 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020909

2002-11-20 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR