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1. WO2007142355 - DEVICE FOR PURIFICATION OF EXHAUST GAS

Publication Number WO/2007/142355
Publication Date 13.12.2007
International Application No. PCT/JP2007/061845
International Filing Date 06.06.2007
Chapter 2 Demand Filed 04.04.2008
IPC
F01N 3/023 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
F01N 3/029 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
029by adding non-fuel substances to exhaust
F01N 3/035 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
033in combination with other devices
035with catalytic reactors
F01N 3/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
18characterised by methods of operation; Control
20specially adapted for catalytic conversion
B01D 53/92 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
34Chemical or biological purification of waste gases
92of engine exhaust gases
CPC
B01D 2251/104
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
2251Reactants
10Oxidants
104Ozone
B01D 53/9431
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
92of engine exhaust gases
94by catalytic processes
9404Removing only nitrogen compounds
9409Nitrogen oxides
9431Processes characterised by a specific device
B01D 53/944
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
DSEPARATION
53Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols,
34Chemical or biological purification of waste gases
92of engine exhaust gases
94by catalytic processes
944Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
F01N 13/009
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
13Exhaust or silencing apparatus characterised by constructional features ; ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
009having two or more separate purifying devices arranged in series
F01N 2240/38
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
2240Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
38an ozone (O3) generator, e.g. for adding ozone after generation of ozone from air
F01N 3/0231
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
02for cooling, or for removing solid constituents of, exhaust
021by means of filters
023using means for regenerating the filters, e.g. by burning trapped particles
0231using special exhaust apparatus upstream of the filter for producing nitrogen dioxide, e.g. for continuous filter regeneration systems [CRT]
Applicants
  • TOYOTA JIDOSHA KABUSHIKI KAISHA [JP]/[JP] (AllExceptUS)
  • SAKAKIBARA, Yuji [JP]/[JP] (UsOnly)
  • ITOH, Yoshihiko [JP]/[JP] (UsOnly)
  • YOKOTA, Koji [JP]/[JP] (UsOnly)
  • BANNO, Kouzi [JP]/[JP] (UsOnly)
  • HIRATA, Hirohito [JP]/[JP] (UsOnly)
  • KAKINOHANA, Masaru [JP]/[JP] (UsOnly)
  • IBE, Masaya [JP]/[JP] (UsOnly)
Inventors
  • SAKAKIBARA, Yuji
  • ITOH, Yoshihiko
  • YOKOTA, Koji
  • BANNO, Kouzi
  • HIRATA, Hirohito
  • KAKINOHANA, Masaru
  • IBE, Masaya
Agents
  • NAGAHAMA, Noriaki
Priority Data
2006-16081409.06.2006JP
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DEVICE FOR PURIFICATION OF EXHAUST GAS
(FR) DISPOSITIF DE PURIFICATION DE GAZ D'ÉCHAPPEMENT
Abstract
(EN)
A device for purification of exhaust gas including: an exhaust gas passage 15 connected to an internal combustion engine 10; a particulate matter trapping device 30 which is disposed in the exhaust gas passage 15, and which traps particulate matters in exhaust gas; ozone supply means 40 which is connected to the exhaust gas passage 15 and on an upstream side of the particulate matter trapping device 30, and which can supply ozone to the particulate matter trapping device 30; and an NO oxidizing catalyst 20 which is disposed in the exhaust gas passage 15 and on an upstream of the ozone supply means 40, and which oxidizes NO in the exhaust gas.
(FR)
La présente invention concerne un dispositif pour la purification de gaz d'échappement comprenant : un passage de gaz d'échappement (15) raccordé à un moteur à combustion interne (10) ; un dispositif pour la capture de matières particulaires (30) qui est placé dans le passage de gaz d'échappement (15) et qui capture les matières particulaires du gaz d'échappement ; un moyen d'alimentation en ozone (40) qui est raccordé au passage de gaz d'échappement (15) et en aval du dispositif de capture de matières particulaires (30) pouvant alimenter en ozone le dispositif de capture de matières particulaires (30) ; et un catalyseur oxydant le NO (20) qui est placé dans le passage de gaz d'échappement (15) et en aval du moyen d'alimentation en ozone (40) qui oxyde le NO dans le gaz d'échappement.
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