JP2009540189A - 改良型のハイブリッドnox防止用システム - Google Patents
改良型のハイブリッドnox防止用システム Download PDFInfo
- Publication number
- JP2009540189A JP2009540189A JP2009513786A JP2009513786A JP2009540189A JP 2009540189 A JP2009540189 A JP 2009540189A JP 2009513786 A JP2009513786 A JP 2009513786A JP 2009513786 A JP2009513786 A JP 2009513786A JP 2009540189 A JP2009540189 A JP 2009540189A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- lean
- catalyst
- ammonia
- trap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0842—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9436—Ammonia
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9463—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick
- B01D53/9472—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on one brick in different zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9481—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start
- B01D53/9486—Catalyst preceded by an adsorption device without catalytic function for temporary storage of contaminants, e.g. during cold start for storing hydrocarbons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N13/00—Exhaust 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
- F01N13/009—Exhaust 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 having two or more separate purifying devices arranged in series
- F01N13/0097—Exhaust 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 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0821—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with particulate filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/0807—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
- F01N3/0828—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
- F01N3/0864—Oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
- F01N3/106—Auxiliary oxidation catalysts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
- F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
- F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
- F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1021—Platinum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/10—Noble metals or compounds thereof
- B01D2255/102—Platinum group metals
- B01D2255/1025—Rhodium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/50—Zeolites
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/911—NH3-storage component incorporated in the catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/90—Physical characteristics of catalysts
- B01D2255/912—HC-storage component incorporated in the catalyst
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2240/00—Combination 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
- F01N2240/30—Combination 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 a fuel reformer
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/02—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
- F01N2560/026—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting NOx
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2560/00—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
- F01N2560/06—Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being a temperature sensor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/18—Ammonia
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Emergency Medicine (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
【選択図】図1
Description
Claims (21)
- ディーゼルエンジン用の排気後処理システム(7)であって、
リーン排気からNOXを吸収して、保持し、リッチ排気状況下で前記保持したNOXを還元して、放出するリーンNOXトラップ(13)と、
前記リーンNOXトラップ(13)から放出されたガスを受取って、リーン環境内でNOXを還元できるアンモニアと反応して触媒作用を及ぼすアンモニア−SCR触媒(16)と、
前記リーンNOXトラップ(13)と前記アンモニア−SCR触媒(16)の間に置かれて、リッチ排気状況下で排気内の炭化水素の濃度を減らすように構成された付加触媒(14)とを有し、
前記リーンNOXトラップ(13)は、リッチ排気状況下でアンモニアを生成するように機能し、前記アンモニア−SCR触媒(16)は、このように生成したアンモニアのほとんどを吸収するように機能し、
前記アンモニア−SCR触媒(16)は、前記吸収したアンモニアとNOXを反応させて触媒作用を及ぼすことで、前記リーンNOXトラップ(13)を通るNOXを還元するように機能し、
前記付加触媒(14)は、炭化水素による前記アンモニア−SCR触媒(16)の有害化を緩和させるように機能することを特徴とするシステム。 - 前記システム(7)は、さらに、
前記リーンNOXトラップ(13)へ排気を送るように構成された管と、
前記管内に配置された燃料改質装置(12)とを有し、前記管を通る排気の少なくとも大部分が前記燃料改質装置(12)も通るようにしたことを特徴とする請求項1に記載のシステム(7)。 - 前記付加触媒(14)は、炭化水素−SCR触媒(14’’)を含むことを特徴とする請求項1に記載のシステム(7)。
- 前記付加触媒(14)は、酸化触媒(14’’’)を含むことを特徴とする請求項1に記載のシステム(7)。
- 前記付加触媒は、炭化水素吸収剤を含むことを特徴とする請求項1に記載のシステム(7)。
- 前記酸化触媒は、限定的な酸素保持性能を有し、これによって、NOXで飽和した後に再生した時に、前記リーンNOXトラップ(13)から漏れる炭化水素のほとんどを還元するのに十分な酸素を保持するが、再生中に前記リーンNOXトラップ(13)から漏れるアンモニアのほとんどを還元するのに十分な酸素を保持しないことを特徴とする請求項4に記載のシステム(7)。
- 動力発生システム(5)であって、請求項1に記載の排気後処理システム(7)を有することを特徴とする動力発生システム。
- ディーゼルエンジンの排気処理方法であって、
排気をリーンNOXトラップ(13)に通過させて、これによって、排気がリーンの時にNOXを吸収して、保持し、排気がリッチの時に前記保持したNOXを還元して、窒素とアンモニアを放出させ、
排気を前記リーンNOXトラップ(13)に通過させた後、排気を付加触媒(14)に通過させて、これによって、炭化水素との反応によってNOXを還元させて、排気がリッチの時に排気内の炭化水素の濃度を減らし、
排気を前記付加触媒(14)に通過させた後、排気をアンモニア−SCR触媒(16)に通過させて、この触媒によって、排気がリッチの時に排気からアンモニアを吸収し、排気がリーンの時にアンモニアとの反応によって排気内のNOXを還元する、各ステップを有することを特徴とする方法。 - 前記付加触媒(14)は、炭化水素−SCR触媒(14’’)であって、リーン排気状況下で炭化水素との反応によってNOXを還元するように機能することを特徴とする請求項8に記載の方法。
- 前記付加触媒(14)は、炭化水素吸収剤を含むことを特徴とする請求項8に記載の方法。
- ディーゼルエンジンの排気処理方法であって、
排気をリーンNOXトラップ(13)に通過させて、これによって、排気がリーンの時にNOXを吸収して、保持し、排気がリッチの時に保持したNOXを還元して、窒素とアンモニアを放出させ、
経時的に、前記排気をリッチにすることで、前記リーンNOXトラップ(13)を再生させ、
排気を前記リーンNOXトラップ(13)に通過させた後、排気を酸化触媒(14’’’)に通過させて、これによって、前記リーンNOXトラップ(13)の再生中に排気内の炭化水素の濃度を減らし、
排気を前記酸化触媒(14’’’)に通過させた後、排気をアンモニア−SCR触媒(16)に通過させて、これによって、排気がリッチの時に排気からアンモニアを吸収し、排気がリーンの時にアンモニアとの反応によって排気内のNOXを還元する、各ステップを有することを特徴とする方法。 - 前記酸化触媒(14’’’)は、限定的な酸素保持機能を有し、これによって、保持した酸素を、排気内の炭化水素の濃度を減らすのに利用可能にするが、前記リーンNOXトラップ(13)によって生成されたアンモニアのほとんどを、酸化されることなく、前記酸化触媒(14’’’)に通すことができるように、前記保持した酸素をなくすことを特徴とする請求項11に記載の方法。
- 前記リーンNOXトラップ(13)の再生の主に初めに、前記リーンNOXトラップ(13)から炭化水素が漏れ、前記再生の主に終りに、前記リーンNOXトラップ(13)内でアンモニアが生成することを特徴とする請求項11に記載の方法。
- 前記酸化触媒(14’’’)は、前記排気がリーンの時に排気から酸素を吸収することを特徴とする請求項13に記載の方法。
- 前記吸収した酸素のほとんどは、排気中の炭化水素との反応によって、再生中に消費されることを特徴とする請求項14に記載の方法。
- 再生中に前記リーンNOXトラップ(13)から放出されるアンモニアの酸化は、炭化水素との酸素の反応によって、前記酸化触媒(14’’’)内で吸収された酸素の消耗によって限定されることを特徴とする請求項14に記載の方法。
- 再生の過程中、前記リーンNOXトラップ(13)内の排気のリッチな度合いは、前記リーンNOXトラップ(13)の酸素保持性能に関して制御されることを特徴とする請求項12に記載の方法。
- 再生中に前記リーンNOXトラップ(13)に供給される排気のリッチな度合いは、前記再生中に達成する最大値から、再生中にかなり減少することを特徴とする請求項11に記載の方法。
- 前記リーンNOXトラップ(13)の上流の排気内に燃料を噴射することで排気をリッチにし、この噴射の割合は、前記再生中に達成する最大値から、再生中にかなり減少することを特徴とする請求項11に記載の方法。
- 再生中に前記リーンNOXトラップ(13)から漏れる炭化水素の割合は、前記酸化触媒(14’’’)内で保持された酸素を消費するため、少なくとも再生の一部中に意図的により高いレベルにされることを特徴とする請求項11に記載の方法。
- 前記酸化触媒(14’’’)は、炭化水素を吸収することで、前記リーンNOXトラップ(13)の再生中に、排気内の炭化水素の濃度を減らすことを特徴とする請求項11に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/447,810 US7562522B2 (en) | 2006-06-06 | 2006-06-06 | Enhanced hybrid de-NOx system |
PCT/IB2007/001511 WO2007141638A2 (en) | 2006-06-06 | 2007-06-05 | System and method for diesel engine exhaust aftertreatment |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2009540189A true JP2009540189A (ja) | 2009-11-19 |
Family
ID=38657792
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009513786A Ceased JP2009540189A (ja) | 2006-06-06 | 2007-06-05 | 改良型のハイブリッドnox防止用システム |
Country Status (4)
Country | Link |
---|---|
US (1) | US7562522B2 (ja) |
EP (1) | EP2024063A2 (ja) |
JP (1) | JP2009540189A (ja) |
WO (1) | WO2007141638A2 (ja) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008215123A (ja) * | 2007-03-01 | 2008-09-18 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP2012097729A (ja) * | 2010-10-08 | 2012-05-24 | Hino Motors Ltd | 排ガス浄化装置 |
JP2013543947A (ja) * | 2010-11-11 | 2013-12-09 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 3連続のSCR触媒区画を使用する排気ガスNOx処理 |
JP2016089721A (ja) * | 2014-11-05 | 2016-05-23 | マツダ株式会社 | 排気ガス浄化システム及び排気ガス浄化方法 |
EP3091205A1 (en) | 2015-05-08 | 2016-11-09 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification system for internal combustion engine |
Families Citing this family (83)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10300298A1 (de) | 2003-01-02 | 2004-07-15 | Daimlerchrysler Ag | Abgasnachbehandlungseinrichtung und -verfahren |
US20080078176A1 (en) * | 2006-10-02 | 2008-04-03 | International Engine Intellectual Property Company | Strategy for control of recirculated exhaust gas to null turbocharger boost error |
US20080131345A1 (en) * | 2006-11-30 | 2008-06-05 | Frederic Vitse | Multi-bed selective catalytic reduction system and method for reducing nitrogen oxides emissions |
US20080190099A1 (en) * | 2006-12-20 | 2008-08-14 | Aleksey Yezerets | System and method for inhibiting uncontrolled regeneration of a particulate filter for an internal combustion engine |
US20120233985A1 (en) * | 2006-12-21 | 2012-09-20 | Johnson Matthey Public Limited Company | Apparatus comprising lean burn ic engine and an exhaust system therefor |
JP4840274B2 (ja) * | 2007-07-11 | 2011-12-21 | トヨタ自動車株式会社 | 燃料やオイル中の硫黄濃度検出方法 |
JP4821737B2 (ja) * | 2007-08-21 | 2011-11-24 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP4286888B2 (ja) * | 2007-09-28 | 2009-07-01 | 日産ディーゼル工業株式会社 | 排気浄化装置 |
JP4286887B2 (ja) * | 2007-09-28 | 2009-07-01 | 日産ディーゼル工業株式会社 | 排気浄化装置 |
US9993771B2 (en) | 2007-12-12 | 2018-06-12 | Basf Corporation | Emission treatment catalysts, systems and methods |
US9863297B2 (en) | 2007-12-12 | 2018-01-09 | Basf Corporation | Emission treatment system |
KR100916401B1 (ko) | 2007-12-14 | 2009-09-07 | 현대자동차주식회사 | 입자상물질 및 질소산화물 정화장치 |
DE102007061005A1 (de) * | 2007-12-18 | 2009-06-25 | Man Nutzfahrzeuge Ag | Verfahren zur Verbesserung der Hydrolyse eines Reduktionsmittels in einem Abgasnachbehandlungssystem |
JP2009150279A (ja) * | 2007-12-19 | 2009-07-09 | Hino Motors Ltd | 排気処理装置 |
US8151558B2 (en) * | 2008-01-31 | 2012-04-10 | Caterpillar Inc. | Exhaust system implementing SCR and EGR |
EP2265358A1 (en) * | 2008-03-31 | 2010-12-29 | The University Of British Columbia | Method and apparatus for the catalytic reduction of flue gas nox |
EP2112341B1 (en) * | 2008-04-22 | 2018-07-11 | Umicore AG & Co. KG | Method for purification of an exhaust gas from a diesel engine |
EP2112339A1 (de) * | 2008-04-24 | 2009-10-28 | Umicore AG & Co. KG | Verfahren und Vorrichtung zur Reinigung von Abgasen eines Verbrennungsmotors |
US8161731B2 (en) * | 2008-05-12 | 2012-04-24 | Caterpillar Inc. | Selective catalytic reduction using controlled catalytic deactivation |
DE102008026178A1 (de) * | 2008-05-30 | 2009-12-03 | Deutz Ag | SCR-Katalysator mit hohem Wirkungsgrad |
US8245500B2 (en) * | 2008-07-07 | 2012-08-21 | Delphi Technologies, Inc. | Dual catalyst NOx reduction system for exhaust from lean burn internal combustion engines |
JP4666018B2 (ja) * | 2008-07-29 | 2011-04-06 | 株式会社デンソー | 内燃機関の排気浄化装置 |
US8343448B2 (en) * | 2008-09-30 | 2013-01-01 | Ford Global Technologies, Llc | System for reducing NOx in exhaust |
US8486341B2 (en) * | 2008-12-09 | 2013-07-16 | Caterpillar Inc. | System and method for treating exhaust gases |
US8893476B2 (en) * | 2008-12-12 | 2014-11-25 | Volvo Lastvagnar Ab | SCR closed loop control system |
US8844274B2 (en) | 2009-01-09 | 2014-09-30 | Ford Global Technologies, Llc | Compact diesel engine exhaust treatment system |
US20100192545A1 (en) * | 2009-01-30 | 2010-08-05 | Gm Global Technology Operations, Inc. | Exhaust aftertreatment system |
JP5422215B2 (ja) * | 2009-01-30 | 2014-02-19 | 三菱重工業株式会社 | 排ガス浄化装置 |
US20100251700A1 (en) * | 2009-04-02 | 2010-10-07 | Basf Catalysts Llc | HC-SCR System for Lean Burn Engines |
US9662611B2 (en) | 2009-04-03 | 2017-05-30 | Basf Corporation | Emissions treatment system with ammonia-generating and SCR catalysts |
US8062618B2 (en) | 2009-04-17 | 2011-11-22 | Ford Global Technologies, Llc | Exhaust aftertreatment system and method of treating exhaust gas |
US8246923B2 (en) * | 2009-05-18 | 2012-08-21 | Umicore Ag & Co. Kg | High Pd content diesel oxidation catalysts with improved hydrothermal durability |
US8904760B2 (en) * | 2009-06-17 | 2014-12-09 | GM Global Technology Operations LLC | Exhaust gas treatment system including an HC-SCR and two-way catalyst and method of using the same |
US8371108B2 (en) * | 2009-07-29 | 2013-02-12 | Ford Global Technologies, Llc | Twin turbo diesel aftertreatment system |
US8240194B2 (en) | 2009-07-30 | 2012-08-14 | Ford Global Technologies, Llc | Methods and systems for diagnostics of an emission system with more than one SCR region |
KR20110012498A (ko) * | 2009-07-30 | 2011-02-09 | 현대자동차주식회사 | 배기 시스템 |
KR101158816B1 (ko) * | 2009-08-21 | 2012-06-26 | 기아자동차주식회사 | 디젤 차량의 배기 장치 |
KR20110024599A (ko) * | 2009-09-02 | 2011-03-09 | 현대자동차주식회사 | 디젤 엔진 배기가스 후처리 장치 |
US8557203B2 (en) * | 2009-11-03 | 2013-10-15 | Umicore Ag & Co. Kg | Architectural diesel oxidation catalyst for enhanced NO2 generator |
US20110209466A1 (en) * | 2010-02-26 | 2011-09-01 | General Electric Company | Catalyst composition and catalytic reduction system comprising yttrium |
US20120017578A1 (en) | 2010-03-05 | 2012-01-26 | Johnson Daniel S | Power transfer system |
KR101339523B1 (ko) | 2010-03-15 | 2013-12-10 | 도요타지도샤가부시키가이샤 | 내연 기관의 배기 정화 장치 |
EP2460989B1 (en) | 2010-03-15 | 2016-04-27 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification device for internal combustion engine |
BRPI1012615B1 (pt) | 2010-03-15 | 2020-08-11 | Toyota Jidosha Kabushiki Kaisha | Sistema de purificação de exaustão de motor de combustão interna |
BRPI1014237B1 (pt) | 2010-04-01 | 2020-06-09 | Toyota Motor Co Ltd | método de purificação de gás de escape de motor de combustão interna |
WO2012008948A1 (en) * | 2010-07-13 | 2012-01-19 | International Engine Intellectual Property Company, Llc | PACKAGING OF DOC+DFP/NH3(g) MIXER/NOx SLIP CATALYST IN EXHAUST SYSTEM |
JP5196024B2 (ja) | 2010-07-28 | 2013-05-15 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
KR101326348B1 (ko) | 2010-08-30 | 2013-11-11 | 도요타지도샤가부시키가이샤 | 내연 기관의 배기 정화 방법 |
ES2599154T3 (es) | 2010-08-30 | 2017-01-31 | Toyota Jidosha Kabushiki Kaisha | Dispositivo de purificación de gases de escape para motor de combustión interna |
US9441517B2 (en) | 2010-09-02 | 2016-09-13 | Ford Global Technologies, Llc | Diesel engine exhaust treatment system |
EP2530267B1 (en) | 2010-10-04 | 2016-07-06 | Toyota Jidosha Kabushiki Kaisha | Method for exhaust purification in exhaust purification system of internal combustion engine |
WO2012046333A1 (ja) | 2010-10-04 | 2012-04-12 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US8137648B2 (en) | 2010-10-12 | 2012-03-20 | Ford Global Technologies, Llc | Diesel engine exhaust treatment system and method including a platinum group metal trapping device |
WO2012053117A1 (ja) | 2010-10-18 | 2012-04-26 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
CN103221648B (zh) | 2010-12-06 | 2016-08-24 | 丰田自动车株式会社 | 内燃机的排气净化装置 |
WO2012086093A1 (ja) | 2010-12-20 | 2012-06-28 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
EP2495409B1 (en) | 2010-12-24 | 2017-04-19 | Toyota Jidosha Kabushiki Kaisha | Exhaust gas purification system for internal combustion engine |
EP2481473A3 (en) | 2011-01-26 | 2012-08-15 | Ford Global Technologies, LLC | LNT and SCR catalysts for combined LNT-SCR applications |
EP2503121B1 (en) * | 2011-02-07 | 2017-03-22 | Toyota Jidosha Kabushiki Kaisha | Exhaust-gas purifying system for internal-combustion engine |
US9140162B2 (en) | 2011-02-10 | 2015-09-22 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification system of internal combustion engine |
JP5152417B2 (ja) | 2011-03-17 | 2013-02-27 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
WO2012140784A1 (ja) | 2011-04-15 | 2012-10-18 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
GB2492175B (en) | 2011-06-21 | 2018-06-27 | Johnson Matthey Plc | Exhaust system for internal combustion engine comprising catalysed filter substrate |
WO2013022516A1 (en) * | 2011-08-09 | 2013-02-14 | International Engine Intellectual Property Company, Llc | Method and system for mitigating n2o output from exhaust gas systems |
ES2633727T3 (es) | 2011-11-07 | 2017-09-25 | Toyota Jidosha Kabushiki Kaisha | Dispositivo de limpieza de gases de escape para motor de combustión interna |
EP2626529B1 (en) | 2011-11-09 | 2015-10-21 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification device for internal combustion engine |
EP2626528B1 (en) | 2011-11-30 | 2016-10-26 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification device for internal combustion engine |
EP2623738B1 (en) | 2011-11-30 | 2019-08-21 | Toyota Jidosha Kabushiki Kaisha | NOx purification method of an exhaust purification system of an internal combustion engine |
US8857154B2 (en) * | 2012-01-23 | 2014-10-14 | Southwest Research Institute | Exhaust aftertreatment for NOx-containing exhaust from an internal combustion engine |
JP5392411B1 (ja) | 2012-02-07 | 2014-01-22 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
FR2992022B1 (fr) * | 2012-06-19 | 2014-06-13 | Renault Sa | Systeme de traitement des gaz d'echappement comprenant un filtre a particules catalytique, et procede correspondant |
US20150265970A1 (en) * | 2012-06-28 | 2015-09-24 | International Engine Intellectual Property Company, Llc | Ammonia abatement system for exhaust systems |
SE539092C2 (sv) * | 2012-10-02 | 2017-04-04 | Scania Cv Ab | Reglering av en koncentration/fraktion av ingående ämnen i en avgasström |
DE102013000013A1 (de) * | 2013-01-02 | 2014-07-03 | Thyssenkrupp Industrial Solutions Gmbh | Beseitigung von Ammoniak und niederen Alkanen und/oder Wasserstoff in Abgasströmen in Industrieanlagen |
US9863298B2 (en) | 2014-11-03 | 2018-01-09 | Caterpillar Inc. | Compression ignition engine system with improved regeneration via controlled ash deposits |
KR102479998B1 (ko) * | 2015-03-26 | 2022-12-21 | 바스프 코포레이션 | 배기가스 처리 시스템 |
CN105443198B (zh) * | 2015-08-05 | 2018-06-08 | 上海汽车集团股份有限公司 | 汽车尾气处理装置 |
EP3359401B1 (en) * | 2015-10-09 | 2022-11-23 | Volvo Truck Corporation | Managing the energy consumption of a multiple zone heating, ventilating and air conditioning system for a vehicle and method |
DE102016215386A1 (de) * | 2016-08-17 | 2018-02-22 | Robert Bosch Gmbh | Verfahren zur Optimierung eines NOx-Ausstoßes in einem kombinierten Abgasnachbehandlungssystem |
DE102017122001A1 (de) * | 2016-09-22 | 2018-03-22 | Johnson Matthey Public Limited Company | Ruthenium, geträgert auf trägern, die eine rutilphase aufweisen, als stabile katalysatoren für nh3-slip-anwendungen |
JP6870638B2 (ja) * | 2018-03-19 | 2021-05-12 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置および内燃機関の制御装置 |
KR102506874B1 (ko) * | 2018-07-31 | 2023-03-08 | 현대자동차주식회사 | 배기가스 후처리시스템의 우레아 분사제어방법 |
CN110252323B (zh) * | 2019-05-31 | 2021-08-17 | 南京工业大学 | 一种脱硝脱汞双效催化剂及其制备方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002242667A (ja) * | 2001-01-30 | 2002-08-28 | Omg Ag & Co Kg | 内燃機関用排ガス浄化装置 |
US20050091968A1 (en) * | 2003-11-03 | 2005-05-05 | Van Nieuwstadt Michiel | Exhaust gas aftertreatment systems |
WO2006008625A1 (en) * | 2004-07-14 | 2006-01-26 | Eaton Corporation | Hybrid catalyst system for exhaust emissions reduction |
JP2006512529A (ja) * | 2003-01-02 | 2006-04-13 | ダイムラークライスラー・アクチェンゲゼルシャフト | 排気ガス後処理装置及び方法 |
JP2006522257A (ja) * | 2003-04-05 | 2006-09-28 | ダイムラークライスラー・アクチェンゲゼルシャフト | 排気ガスの後処理用の装置及び方法 |
JP2006342737A (ja) * | 2005-06-09 | 2006-12-21 | Mitsubishi Fuso Truck & Bus Corp | 排気浄化装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5727385A (en) * | 1995-12-08 | 1998-03-17 | Ford Global Technologies, Inc. | Lean-burn nox catalyst/nox trap system |
US6038853A (en) * | 1996-08-19 | 2000-03-21 | The Regents Of The University Of California | Plasma-assisted catalytic storage reduction system |
DE19820828B4 (de) * | 1998-05-09 | 2004-06-24 | Daimlerchrysler Ag | Stickoxidemissionsmindernde Abgasreinigungsanlage |
DE19854794A1 (de) * | 1998-11-27 | 2000-05-31 | Degussa | Katalysator für die Reinigung der Abgase eines Dieselmotors |
US6202407B1 (en) * | 1999-04-20 | 2001-03-20 | The Regents Of The University Of California | Nox reduction system utilizing pulsed hydrocarbon injection |
US7082753B2 (en) * | 2001-12-03 | 2006-08-01 | Catalytica Energy Systems, Inc. | System and methods for improved emission control of internal combustion engines using pulsed fuel flow |
US7332135B2 (en) * | 2002-10-22 | 2008-02-19 | Ford Global Technologies, Llc | Catalyst system for the reduction of NOx and NH3 emissions |
US6846464B2 (en) * | 2002-11-20 | 2005-01-25 | Ford Global Technologies, Llc | Bimodal catalyst-urea SCR system for enhanced NOx conversion and durability |
US6832473B2 (en) * | 2002-11-21 | 2004-12-21 | Delphi Technologies, Inc. | Method and system for regenerating NOx adsorbers and/or particulate filters |
US6732507B1 (en) * | 2002-12-30 | 2004-05-11 | Southwest Research Institute | NOx aftertreatment system and method for internal combustion engines |
US7240484B2 (en) * | 2003-12-29 | 2007-07-10 | Delphi Technologies, Inc. | Exhaust treatment systems and methods for using the same |
US6996975B2 (en) * | 2004-06-25 | 2006-02-14 | Eaton Corporation | Multistage reductant injection strategy for slipless, high efficiency selective catalytic reduction |
US20070012032A1 (en) * | 2005-07-12 | 2007-01-18 | Eaton Corporation | Hybrid system comprising HC-SCR, NOx-trapping, and NH3-SCR for exhaust emission reduction |
US7063642B1 (en) * | 2005-10-07 | 2006-06-20 | Eaton Corporation | Narrow speed range diesel-powered engine system w/ aftertreatment devices |
US7257941B1 (en) * | 2006-03-14 | 2007-08-21 | Eaton Corporation | Model based diagnostics of an aftertreatment fuel dosing system |
-
2006
- 2006-06-06 US US11/447,810 patent/US7562522B2/en not_active Expired - Fee Related
-
2007
- 2007-06-05 EP EP07734789A patent/EP2024063A2/en not_active Withdrawn
- 2007-06-05 JP JP2009513786A patent/JP2009540189A/ja not_active Ceased
- 2007-06-05 WO PCT/IB2007/001511 patent/WO2007141638A2/en active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002242667A (ja) * | 2001-01-30 | 2002-08-28 | Omg Ag & Co Kg | 内燃機関用排ガス浄化装置 |
JP2006512529A (ja) * | 2003-01-02 | 2006-04-13 | ダイムラークライスラー・アクチェンゲゼルシャフト | 排気ガス後処理装置及び方法 |
JP2006522257A (ja) * | 2003-04-05 | 2006-09-28 | ダイムラークライスラー・アクチェンゲゼルシャフト | 排気ガスの後処理用の装置及び方法 |
US20050091968A1 (en) * | 2003-11-03 | 2005-05-05 | Van Nieuwstadt Michiel | Exhaust gas aftertreatment systems |
WO2006008625A1 (en) * | 2004-07-14 | 2006-01-26 | Eaton Corporation | Hybrid catalyst system for exhaust emissions reduction |
JP2006342737A (ja) * | 2005-06-09 | 2006-12-21 | Mitsubishi Fuso Truck & Bus Corp | 排気浄化装置 |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008215123A (ja) * | 2007-03-01 | 2008-09-18 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
JP4656071B2 (ja) * | 2007-03-01 | 2011-03-23 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP2012097729A (ja) * | 2010-10-08 | 2012-05-24 | Hino Motors Ltd | 排ガス浄化装置 |
JP2013543947A (ja) * | 2010-11-11 | 2013-12-09 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニー | 3連続のSCR触媒区画を使用する排気ガスNOx処理 |
JP2016089721A (ja) * | 2014-11-05 | 2016-05-23 | マツダ株式会社 | 排気ガス浄化システム及び排気ガス浄化方法 |
EP3091205A1 (en) | 2015-05-08 | 2016-11-09 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification system for internal combustion engine |
JP2016211437A (ja) * | 2015-05-08 | 2016-12-15 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US9719394B2 (en) | 2015-05-08 | 2017-08-01 | Toyota Jidosha Kabushiki Kaisha | Exhaust purification system for internal combustion engine |
Also Published As
Publication number | Publication date |
---|---|
WO2007141638A2 (en) | 2007-12-13 |
US7562522B2 (en) | 2009-07-21 |
US20070277507A1 (en) | 2007-12-06 |
EP2024063A2 (en) | 2009-02-18 |
WO2007141638A3 (en) | 2008-02-21 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP2009540189A (ja) | 改良型のハイブリッドnox防止用システム | |
US7624570B2 (en) | Optimal fuel profiles | |
US7950226B2 (en) | LNT-SCR system optimized for thermal gradient | |
US7412823B2 (en) | LNT desulfation strategy | |
US7614214B2 (en) | Gasification of soot trapped in a particulate filter under reducing conditions | |
JP5234420B2 (ja) | 改質装置の温度管理を用いたlnt脱硫酸方法 | |
US8209960B2 (en) | System and method for coupled DPF regeneration and LNT DeNOx | |
US7610751B2 (en) | Fuel injection before turbocharger | |
US20080072575A1 (en) | Catalyst to improve low temperature deNOx activity in a reformer-LNT exhaust aftertreatment system | |
US7062904B1 (en) | Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines | |
US7434387B2 (en) | Integrated DPF-reformer | |
US7251929B2 (en) | Thermal management of hybrid LNT/SCR aftertreatment during desulfation | |
US20080006025A1 (en) | LNT regeneration during transient operation | |
JP5802260B2 (ja) | リーンバーンエンジン用の排気ガス後処理においてナイトラスオキサイドを減少させる方法 | |
US20070012032A1 (en) | Hybrid system comprising HC-SCR, NOx-trapping, and NH3-SCR for exhaust emission reduction | |
US7334400B2 (en) | Valveless dual leg exhaust aftertreatment system | |
EP2094951B1 (en) | Apparatus comprising lean burn ic engine and an exhaust system therefor | |
US20070056268A1 (en) | LNT-SCR packaging | |
US20060179825A1 (en) | Integrated NOx and PM reduction devices for the treatment of emissions from internal combustion engines | |
US20080022660A1 (en) | Method for controlled DPF regeneration | |
US20080016851A1 (en) | System to reduce engine exhaust oxygen using exhaust hydrocarbons and a catalyst positioned upstream of a fuel reformer-LNT system | |
US20080016852A1 (en) | Coupled DPF regeneration and LNT desulfation | |
JP2007278280A (ja) | 排気放出削減用のハイブリッド触媒システム | |
US20080016850A1 (en) | Simultaneous LNT and DPF regeneration | |
JP2009216021A (ja) | 排気浄化装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20100604 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120222 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20120223 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120416 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20121024 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20121221 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130619 |
|
A045 | Written measure of dismissal of application [lapsed due to lack of payment] |
Free format text: JAPANESE INTERMEDIATE CODE: A045 Effective date: 20131030 |