Global Patent Index - EP 1151183 A4

EP 1151183 A4 20040811 - COMBINED PLASMA REACTOR CATALYST SYSTEMS FOR EFFECTIVE EMISSION CONTROL OVER A RANGE OF OPERATING CONDITIONS

Title (en)

COMBINED PLASMA REACTOR CATALYST SYSTEMS FOR EFFECTIVE EMISSION CONTROL OVER A RANGE OF OPERATING CONDITIONS

Title (de)

KOMBINIERTE PLASMAREAKTOR-KATALYSATORSYSTEME ZUR EFFIZIENTEN ABGASKONTROLLE BEI VERSCHIEDENEN ARBEITSBEDINGUNGEN

Title (fr)

SYSTEMES CATALYSEURS COMBINES A REACTEUR A PLASMA DESTINES A LA REDUCTION EFFICACE DES EMISSIONS DANS DE MULTIPLES CONDITIONS DE FONCTIONNEMENT

Publication

EP 1151183 A4 20040811 (EN)

Application

EP 00906989 A 20000121

Priority

  • US 0001574 W 20000121
  • US 11679199 P 19990121

Abstract (en)

[origin: WO0043469A2] The invention is directed to an apparatus and a method for removing at least a portion of at least one pollutant in an exhaust gas stream containing exhaust gas formed from the combustion of fuel in a lean burn engine. The apparatus has at least one device for removing at least a portion of at least one of oxides of nitrogen, hydrocarbons, carbon monoxide, and particulates in the exhaust gas, the device having an inlet and an outlet, wherein the device is selected from the group consisting of selective catalytic reduction catalysts, particulate traps, selective catalytic reduction catalyst coated particulate traps, oxide of nitrogen storage and reduction catalysts, oxidation catalysts, and three-way catalysts, and is positioned, such that at least a portion of the exhaust gas stream from the lean burn engine passes through the device; and at least one device for producing a non-thermal plasma in at least a portion of the exhaust gas stream. At least a portion of the exhaust gas stream is exposed to the non-thermal plasma, and at least a portion of that portion of the exhaust gas stream exposed to the non-thermal plasma is introduced into the exhaust gas stream at a point upstream of or at the at least one device for removing at least one of oxides of nitrogen, hydrocarbons, carbon monoxide, and particulates.

[origin: WO0043469A2] An apparatus and method for removing pollutant from exhaust gas of a lean burn engine (11). The apparatus has at least one device (13) for removing oxides of nitrogen, hydrocarbons, carbon monoxide, and particulates in the exhaust gas. The device (13) is selected from the group consisting of selective catalytic reduction catalysts, particulate traps, and three-way catalysts, and is positioned, such that at least a portion of the exhaust gas stream (18) from the lean burn engine (11) passes through the device (13); and at least one a device (14, 30, 40, 50, 60, 80) for producing a non-thermal plasma in at least a portion of the exhaust gas stream (18). A portion of the exhaust gas stream (18) is exposed to the non-thermal plasma (14, 30, 40, 50, 60, 80), and introduced into the exhaust gas stream (18) at a point upstream of the catalytic converter (13) for removing at least one of oxides of nitrogen, hydrocarbons, carbon monoxide, and particulates.

IPC 1-7

F01N 3/00; F01N 3/08; F01N 3/01; F01N 3/027; F01N 3/023

IPC 8 full level

F01N 3/02 (2006.01); B01D 53/32 (2006.01); B01D 53/86 (2006.01); B01D 53/94 (2006.01); B01J 19/08 (2006.01); F01N 3/023 (2006.01); F01N 3/033 (2006.01); F01N 3/035 (2006.01); F01N 3/08 (2006.01); F01N 3/10 (2006.01); F01N 3/20 (2006.01); F01N 3/24 (2006.01); F01N 3/28 (2006.01); F01N 13/02 (2010.01)

CPC (source: EP)

B01D 53/32 (2013.01); B01D 53/94 (2013.01); B01D 53/9431 (2013.01); B01D 53/9454 (2013.01); B01J 19/088 (2013.01); F01N 3/0231 (2013.01); F01N 3/033 (2013.01); F01N 3/035 (2013.01); F01N 3/0814 (2013.01); F01N 3/0842 (2013.01); F01N 3/0871 (2013.01); F01N 3/0892 (2013.01); F01N 3/2066 (2013.01); F01N 3/2882 (2013.01); F01N 13/009 (2014.06); F01N 13/0097 (2014.06); B01J 2219/0809 (2013.01); B01J 2219/0849 (2013.01); B01J 2219/0875 (2013.01); B01J 2219/0892 (2013.01); B01J 2219/0894 (2013.01); F01N 2240/28 (2013.01); F01N 2410/00 (2013.01); F01N 2610/02 (2013.01); F01N 2610/03 (2013.01); Y02T 10/12 (2013.01)

Citation (search report)

  • [X] US 5711147 A 19980127 - VOGTLIN GEORGE E [US], et al
  • [X] DE 19645689 A1 19980507 - BAYERISCHE MOTOREN WERKE AG [DE]
  • [PX] EP 0953375 A2 19991103 - DEGUSSA [DE]
  • [PX] WO 9912638 A1 19990318 - AEA TECHNOLOGY PLC [GB], et al
  • [PX] WO 9918333 A1 19990415 - LITEX INC [US]
  • [X] PENETRANTE B M ET AL: "PLASMA-ASSISTED CATALYTIC REDUCTION OF NOX", PLASMA EXHAUST AFTERTREATMENT, XX, XX, PAGE(S) 57-67, XP000980254
  • [X] PATENT ABSTRACTS OF JAPAN vol. 018, no. 680 (C - 1291) 21 December 1994 (1994-12-21)
  • [PX] HEMINGWAY M D ET AL: "EVALUATION OF A NON-THERMAL PLASMA SYSTEM FOR REMEDIATION OF NOX IN DIESEL EXHAUST", SAE INTERNATIONAL FUELS AND LUBRICANTS MEETING AND EXHIBITION, XX, XX, PAGE(S) 1-7, XP001172574
  • See references of WO 0043469A2

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 0043469 A2 20000727; WO 0043469 A3 20001102; AU 2856000 A 20000807; EP 1151183 A2 20011107; EP 1151183 A4 20040811; JP 2002535542 A 20021022

DOCDB simple family (application)

US 0001574 W 20000121; AU 2856000 A 20000121; EP 00906989 A 20000121; JP 2000594878 A 20000121