Global Patent Index - EP 0991852 A2

EP 0991852 A2 2000-04-12 - METHOD AND APPARATUS FOR INJECTING HYDROGEN INTO A CATALYTIC CONVERTER

Title (en)

METHOD AND APPARATUS FOR INJECTING HYDROGEN INTO A CATALYTIC CONVERTER

Title (de)

VERFAHREN UND VORRICHTUNG ZUM EINSPRITZEN VON WASSERSTOFF IN EINEN KATALYTISCHEN UMWANDLER

Title (fr)

PROCEDE ET APPAREIL D'INJECTION D'HYDROGENE DANS UN CONVERTISSEUR CATALYTIQUE

Publication

EP 0991852 A2 (EN)

Application

EP 98931597 A

Priority

  • US 9813235 W
  • US 88411297 A
  • US 88366597 A

Abstract (en)

[origin: WO9900588A2] The present invention provides a method and apparatus for chemically heating a catalyst bed by feeding hydrogen to the catalyst. The invention also provides a method and apparatus for thermally conditioning a catalyst in order to enhance the conversion of unacceptable emissions (emanating from an internal combustion engine) into water and other acceptable emissions. In one aspect of the invention, hydrogen is supplied from an electrolyzer or other hydrogen source and injected into the monolith of a catalytic converter to more rapidly bring the catalyst to a light-off temperature.

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

F01N 3/20; F01N 9/00; F02M 25/12

IPC 8 full level (invention and additional information)

B01D 53/90 (2006.01); B01D 53/94 (2006.01); C25B 9/08 (2006.01); F01N 3/20 (2006.01); F01N 3/32 (2006.01); F01N 3/34 (2006.01); F01N 11/00 (2006.01)

CPC (invention and additional information)

F01N 3/2066 (2013.01); B01D 53/90 (2013.01); B01D 53/9454 (2013.01); B01D 53/9495 (2013.01); C25B 9/08 (2013.01); F01N 3/2006 (2013.01); F01N 3/206 (2013.01); F01N 3/32 (2013.01); F01N 3/34 (2013.01); F01N 11/00 (2013.01); B01D 2251/202 (2013.01); F01N 2610/04 (2013.01); F01N 2610/1473 (2013.01); F01N 2900/0422 (2013.01); Y02T 10/22 (2013.01); Y02T 10/24 (2013.01); Y02T 10/26 (2013.01); Y02T 10/47 (2013.01)

Citation (search report)

See references of WO 9900588A3

Designated contracting state (EPC)

DE FR GB IT SE

EPO simple patent family

WO 9900588 A2 19990107; WO 9900588 A3 19990401; AU 8168198 A 19990119; DE 69836875 D1 20070222; DE 69836875 T2 20071115; EP 0991852 A2 20000412; EP 1270765 A1 20030102; EP 1270765 B1 20070110

INPADOC legal status


2004-01-14 [R18R] REFUSED (CORRECTION)

- Effective date: 20030526

2003-10-15 [18R] REFUSED

- Effective date: 20030516

2001-12-05 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20011022

2000-04-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000127

2000-04-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB IT SE