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1. WO2004025092 - EXHAUST GAS POST-TREATMENT ARRANGEMENT AND METHOD THEREFOR

Publication Number WO/2004/025092
Publication Date 25.03.2004
International Application No. PCT/DE2003/002903
International Filing Date 02.09.2003
IPC
B01D 53/94 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
94by catalytic processes
F01N 3/08 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
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
F01N 3/28 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
24characterised by constructional aspects of converting apparatus
28Construction of catalytic reactors
F01N 13/02 2010.01
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
13Exhaust or silencing apparatus characterised by constructional features
02having two or more separate silencers in series
F01N 13/04 2010.01
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
13Exhaust or silencing apparatus characterised by constructional features
04having two or more silencers in parallel, e.g. having interconnections for multi-cylinder engines
CPC
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 53/9495
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
9495Controlling the catalytic process
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 13/011
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
011having two or more purifying devices arranged in parallel
F01N 13/017
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
011having two or more purifying devices arranged in parallel
017the purifying devices are arranged in a single housing
F01N 2240/28
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
28a plasma reactor
Applicants
  • ROBERT BOSCH GMBH [DE]/[DE] (AllExceptUS)
  • ORLANDINI, Igor [HR]/[DE] (UsOnly)
Inventors
  • ORLANDINI, Igor
Common Representative
  • ROBERT BOSCH GMBH
Priority Data
102 41 065.805.09.2002DE
Publication Language German (DE)
Filing Language German (DE)
Designated States
Title
(DE) ABGASNACHBEHANDLUNGSANORDNUNG UND VERFAHREN HIERZU
(EN) EXHAUST GAS POST-TREATMENT ARRANGEMENT AND METHOD THEREFOR
(FR) SYSTEME DE RETRAITEMENT DE GAZ D'ECHAPPEMENT ET PROCEDE CORRESPONDANT
Abstract
(DE)
Es wird eine Abgasnachbehandlungsanordnung bzw. ein Verfahren zur Nachbehandlung von Abgasen vorgeschlagen, das zur Entstickung von Abgasen einer Brennkraftmaschine dient. Die Anordnung umfasst zwei Oxidationspfade (62, 20, 64; 80, 25, 82), die in Abhängigkeit von der Abgastemperatur ausgewählt werden, um die Stickoxide zunächst zu oxidieren und anschliessend in einer Entstickungseinrichtung (10) zu Stickstoff zu reduzieren.
(EN)
The invention relates to an exhaust-gas post-treatment arrangement and a method for post-treating exhaust-gases and which is used to remove nitrogen from exhaust gases from an internal combustion engine. Said arrangement comprises two oxidation paths (62, 20, 64; 80, 25, 82) which are selected according to the temperature of the exhaust gas, in order to initially oxidate nitrogen oxides and subsequently to reduce them in order to form nitrogen in a nitrogen removal device.
(FR)
L'invention concerne un système et un procédé de retraitement de gaz d'échappement, servant à la dénitration des gaz d'échappement d'un moteur à combustion interne. Le système selon l'invention comprend deux voies d'oxydation (62, 20, 64; 80, 25, 82) qui sont sélectionnées en fonction de la température des gaz d'échappement pour oxyder les oxydes d'azote avant de les réduire en azote dans une unité de dénitration (10).
Also published as
Latest bibliographic data on file with the International Bureau