CN102482969A - 内燃机的排气净化装置 - Google Patents

内燃机的排气净化装置 Download PDF

Info

Publication number
CN102482969A
CN102482969A CN2009801596029A CN200980159602A CN102482969A CN 102482969 A CN102482969 A CN 102482969A CN 2009801596029 A CN2009801596029 A CN 2009801596029A CN 200980159602 A CN200980159602 A CN 200980159602A CN 102482969 A CN102482969 A CN 102482969A
Authority
CN
China
Prior art keywords
ammonia
ammoxidation
catalysis device
combustion engine
temperature
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.)
Granted
Application number
CN2009801596029A
Other languages
English (en)
Other versions
CN102482969B (zh
Inventor
浅沼孝充
梅本寿丈
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Motor Corp filed Critical Toyota Motor Corp
Publication of CN102482969A publication Critical patent/CN102482969A/zh
Application granted granted Critical
Publication of CN102482969B publication Critical patent/CN102482969B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • F01N3/10—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]
    • 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
    • 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
    • F01N3/10—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
    • F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
    • F01N2570/14—Nitrogen oxides
    • 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
    • F01N2570/14—Nitrogen oxides
    • F01N2570/145—Dinitrogen oxide
    • 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
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
    • 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)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

本发明提供一种内燃机的排气净化装置，其具备氨氧化催化装置3和紧邻地配置在氨氧化催化装置的上游侧的氨保持装置4，氨保持装置具有固体酸，氨氧化催化装置的温度在N2O生成温度范围内时，保持氨，抑制其流入氨氧化催化装置，氨氧化催化装置的温度在N2O生成温度范围外时，将保持的氨脱离，使其流入氨氧化催化装置。

Description

内燃机的排气净化装置
技术领域
本发明涉及内燃机的排气净化装置。
背景技术
在柴油发动机这样实施稀燃的内燃机的排气系统中配置有用于净化废气中的NOX的NOX催化装置。作为这样的NOX催化装置，公知的是将与废气一起供给的尿素水解而产生氨，将该氨NH3作为还原剂使用来选择性地还原净化废气中的NOX的选择还原型NOX催化装置。
在这样的选择还原型NOX催化装置中，为了抑制向大气中放出未被用于NOX还原的氨，提出了在选择还原型NOX催化装置的下游侧配置氨氧化催化装置。
但是，在这样的氨氧化催化装置中，在比较低的温度下对氨进行氧化时，生成一氧化二氮(或氧化亚氮)N2O。由于不希望向大气放出N2O，因此提出了将氨氧化催化装置升温，抑制在比较低的温度下的氨的氧化(参照专利文献1)。
专利文献1：日本特开2008-255899
发明内容
的确，如果将氨氧化催化装置升温，使氨氧化，则可以减少N2O的生成量。但是，为了将氨氧化催化装置升温，需要燃料或电能等，无论如何都会恶化燃料消耗。
因此，本发明的目的是提供抑制燃料消耗的恶化且能够充分地减少N2O的生成量的具备氨氧化催化装置的内燃机的排气净化装置。
根据本发明权利要求1所述的内燃机的排气净化装置，特征在于，具备氨氧化催化装置和紧邻地配置在所述氨氧化催化装置的上游侧的氨保持装置，所述氨保持装置具有固体酸，所述氨氧化催化装置的温度在N2O生成温度范围内时，保持氨而抑制其流入所述氨氧化催化装置，所述氨氧化催化装置的温度在N2O生成温度范围外时，将保持的氨脱离而使其流入所述氨氧化催化装置。
根据本发明权利要求2所述的内燃机的排气净化装置，特征在于，在权利要求1所述的内燃机的排气净化装置中，所述氨氧化催化装置具有颗粒捕集功能。
根据本发明权利要求1所述的内燃机的排气净化装置，具备氨氧化催化装置和紧邻地配置在氨氧化催化装置的上游侧的氨保持装置，氨保持装置具有固体酸，因为氨氧化催化装置的温度在N2O生成温度范围内时，氨保持装置保持氨而抑制其流入氨氧化催化装置，所以氨氧化催化装置的温度低至N2O生成温度范围内时，即使不消耗燃料来将氨氧化催化装置升温，也不发生大量的氨被氧化而生成大量的N2O，另外，因为氨氧化催化装置的温度在N2O生成温度范围外时，氨保持装置将保持的氨脱离而使其流入氨氧化催化装置，所以如果氨氧化催化装置的温度升高至N2O生成温度范围外，则可以使从氨保持装置脱离的氨在不生成大量的N2O的情况下良好地被氧化，可以抑制燃料消耗的恶化，充分地减少N2O的生成量。
根据本发明权利要求2所述的内燃机的排气净化装置，在权利要求1所述的内燃机的排气净化装置中，氨氧化催化装置具有颗粒捕集功能，不需要另外配置颗粒过滤器并为了烧掉捕集颗粒而将颗粒过滤器升温，在氨氧化催化装置中捕集的颗粒可以通过使氨氧化时的反应热而自动地烧掉。
附图说明
图1是表示根据本发明的内燃机的排气净化装置的实施方式的示意图。
图2是具有颗粒捕集功能的氨氧化催化装置的放大部分纵剖面图。
图3是图2的A-A剖面图。
图4是表示相对于氨氧化催化装置的温度的N2O生成量的变化以及NO生成量的变化的曲线图。
图5是表示相对于沸石的温度的氨脱离量的变化的曲线图。
具体实施方式
图1是表示根据本发明的内燃机的排气净化装置的示意图。在该图中，1是柴油发动机或直接喷射式火花点火内燃机之类的实施稀燃的内燃机的排气通路。在这样的内燃机的废气中，含有比较多的NOX，因此在排气通路1上配置有用于净化NOX的NOX催化装置2。
NOX催化装置2是将与废气一起供给的尿素水解而产生氨，将该氨NH3作为还原剂使用而选择性地还原净化废气中的NOX的选择还原型NOX催化装置。
这样的选择还原型NOX催化装置2配置于排气通路1时，为了抑制向大气中放出未被用于NOX还原的氨，在选择还原型NOX催化装置2的下游侧配置有用于使氨氧化的氨氧化催化装置3。氨氧化催化装置3例如在整体式载体上利用氧化铝担载有铂Pt。
图4是表示利用这样的氨氧化催化装置使氨氧化时的N2O(一氧化二氮或氧化亚氮)生成量和NO生成量的曲线图。如图4所示，在氨氧化催化装置3的温度为350℃以下这样比较低的温度时，氨被氧化的情况下，NO的生成量显著减少，N2O的生成量显著增加。不希望向大气中放出N2O。
在本实施方式中，将氨保持装置4紧邻地配置在氨氧化催化装置3的上游侧。如图1所示，氨保持装置4与氨氧化催化装置3配置在同一罩壳内。
氨保持装置4在整体式载体上设有用于保持氨的固体酸，例如，在整体式载体上作为固体酸形成有沸石层。另外，也可以是将沸石形成整块状的氨保持装置。
图5是表示相对于沸石的温度的氨脱离量的变化的曲线图，沸石之类的固体酸在温度为350℃以下时良好地保持氨，温度超过350℃时，将保持的氨脱离。
由此，设有沸石层的氨保持装置4紧邻地配置在氨氧化催化装置3的上游侧时，氨保持装置4的温度与氨氧化催化装置3的温度几乎相同，氨氧化催化装置3的温度在N2O生成温度范围内(例如350℃以下时)时，氨保持装置4可以良好地保持从选择还原型NOX催化装置2流出的氨，并充分地抑制氨流入氨氧化催化装置3。
另外，氨氧化催化装置3的温度在N2O生成温度范围外(例如超过350℃时)时，氨保持装置4将保持的氨脱离而使其流入氨氧化催化装置3，氨在氨氧化催化装置3中被氧化时，容易生成NO或N2，而不是N2O。这样，不需要特别地将氨氧化催化装置3升温，就可以充分地减少使氨氧化时的N2O的生成量。
氨保持装置4不限于沸石，只要具有任意的固体酸，就可以在N2O生成温度范围内保持氨，在N2O生成温度范围外使氨脱离，也可以利用氧化铝使例如二氧化钛、氧化锆或二氧化硅之类固体酸担载于整体式载体。
然而，柴油发动机的废气中含有颗粒，在排气通路1上可以设置用于抑制向大气中放出颗粒的颗粒过滤器。由此，也可以使氨氧化催化装置3作为颗粒过滤器发挥功能。图2是具有颗粒捕集功能的氨氧化催化装置3的放大部分纵剖面图，图3是图2的A-A剖面图。
如图2和图3所示，氨氧化催化装置3的载体由堇青石之类的多孔材料形成，具有被多个在轴线方向延伸存在的隔壁31细分的多个轴线方向空间。相邻的二个轴线方向空间，一个在排气下游侧被栓33封闭，另一个在排气上游侧被栓33封闭。这样，相邻的二个轴线方向空间中的一个成为废气的流入通路33，另一个成为流出通路34，废气如图2的箭头所示，必定会通过隔壁31。废气中的颗粒与隔壁31的细孔的大小相比非常小，冲撞到隔壁31的排气上游侧表面和隔壁54内的细孔表面上而被捕集。这样，各隔壁31可以作为捕集颗粒的捕集壁而发挥功能。各隔壁31的两侧表面上使用氧化铝等担载作为氧化催化剂的铂Pt。
如果像这样使氨氧化催化装置3还作为颗粒过滤器发挥功能，则捕集在隔壁31上的颗粒可以通过使氨氧化时的反应热而自动地烧掉。由此，与将颗粒过滤器另外配置于排气通路的情况相比，不仅可以降低排气净化装置的成本，也不需要为了将捕集颗粒烧掉而例如在颗粒过滤器上配置氧化催化剂并供给燃料。
符号说明
1排气通路
2NOX催化装置
3氨氧化催化装置
4氨保持装置

Claims (2)

1.一种内燃机的排气净化装置，其特征在于，具备氨氧化催化装置和紧邻地配置在所述氨氧化催化装置的上游侧的氨保持装置，所述氨保持装置具有固体酸，所述氨氧化催化装置的温度在N2O生成温度范围内时，保持氨，抑制氨流入所述氨氧化催化装置，所述氨氧化催化装置的温度在N2O生成温度范围外时，将保持的氨脱离，使氨流入所述氨氧化催化装置。
2.根据权利要求1所述的内燃机的排气净化装置，其特征在于，所述氨氧化催化装置具有颗粒捕集功能。
CN200980159602.9A 2009-06-16 2009-06-16 内燃机的排气净化装置 Active CN102482969B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2009/061269 WO2010146720A1 (ja) 2009-06-16 2009-06-16 内燃機関の排気浄化装置

Publications (2)

Publication Number Publication Date
CN102482969A true CN102482969A (zh) 2012-05-30
CN102482969B CN102482969B (zh) 2014-05-28

Family

ID=43356058

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200980159602.9A Active CN102482969B (zh) 2009-06-16 2009-06-16 内燃机的排气净化装置

Country Status (5)

Country Link
US (1) US9109492B2 (zh)
EP (1) EP2444611B1 (zh)
JP (1) JP5310851B2 (zh)
CN (1) CN102482969B (zh)
WO (1) WO2010146720A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775879A (zh) * 2014-01-14 2015-07-15 福特环球技术公司 控制一氧化二氮排放的方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2726172B1 (en) * 2011-07-01 2015-03-04 Toyota Jidosha Kabushiki Kaisha Particulate filter
US20140165560A1 (en) * 2012-12-18 2014-06-19 Cummins Ip, Inc. Low pressure egr ammonia oxidation catalyst
US9975543B1 (en) 2017-04-04 2018-05-22 Cummins Emission Solutions Inc. Systems and methods for waste heat utilization in combustion-electric propulsion systems

Family Cites Families (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2967113B2 (ja) 1991-06-12 1999-10-25 株式会社豊田中央研究所 排気浄化方法
EP0861367B1 (en) * 1995-11-17 2000-08-16 Toyota Jidosha Kabushiki Kaisha Method and device for purifying exhaust gas of engine
FR2789911B1 (fr) * 1999-02-18 2001-05-04 Grande Paroisse Sa Procede pour abattre simultanement les oxydes nitriques et le protoxyde d'azote dans les gaz qui en contiennent
JP4352516B2 (ja) * 1999-08-03 2009-10-28 トヨタ自動車株式会社 内燃機関の排気浄化装置
DE10001539B4 (de) * 2000-01-14 2006-01-19 Uhde Gmbh Verfahren zur Beseitigung von NOx und N2O
US7438878B2 (en) * 2001-03-12 2008-10-21 Basf Catalysts Llc Selective catalytic reduction of N2O
DE10112444A1 (de) * 2001-03-13 2002-10-02 Krupp Uhde Gmbh Verfahren zur Verringerung des Gehalts von N¶2¶O und NO¶x¶ in Gasen
JP4300862B2 (ja) * 2002-11-11 2009-07-22 トヨタ自動車株式会社 内燃機関の排気浄化装置
US6947831B2 (en) * 2003-04-11 2005-09-20 Ford Global Technologies, Llc Pressure sensor diagnosis via a computer
JP2005061362A (ja) * 2003-08-19 2005-03-10 Hino Motors Ltd 排気浄化装置
EP1536111B1 (en) * 2003-11-26 2006-08-02 Ford Global Technologies, LLC Apparatus and method for removal of by-products from exhaust gases of a combustion engine
JP4427356B2 (ja) * 2004-02-27 2010-03-03 東京濾器株式会社 窒素酸化物浄化用触媒システム及び窒素酸化物浄化方法
JP2006022729A (ja) * 2004-07-08 2006-01-26 Hino Motors Ltd 排気浄化装置の制御方法
DE102005012568A1 (de) * 2005-03-18 2006-09-21 Daimlerchrysler Ag Vorrichtung zur Entfernung von Stickoxiden aus Brennkraftmaschinenabgas und Verfahren zur Dosierung eines Zuschlagstoffs für Brennkraftmaschinenabgas
US7827782B2 (en) * 2005-05-19 2010-11-09 Ford Global Technologies, Llc Method for remediating emissions
JP4729990B2 (ja) * 2005-06-10 2011-07-20 トヨタ自動車株式会社 内燃機関の排気浄化装置
JP4789242B2 (ja) * 2005-12-09 2011-10-12 Ｕｄトラックス株式会社 排気浄化装置
EP1961933B1 (de) * 2007-02-23 2010-04-14 Umicore AG & Co. KG Katalytisch aktiviertes Dieselpartikelfilter mit Ammoniak-Sperrwirkung
JP5683111B2 (ja) * 2007-02-27 2015-03-11 ビーエーエスエフ コーポレーション 銅ｃｈａゼオライト触媒
JP2007239752A (ja) * 2007-03-30 2007-09-20 Toyota Motor Corp 内燃機関の排気浄化装置
JP4706659B2 (ja) 2007-04-05 2011-06-22 トヨタ自動車株式会社 アンモニア酸化触媒におけるｎ２ｏ生成量推定方法および内燃機関の排気浄化システム
DE102007060623B4 (de) * 2007-12-15 2011-04-14 Umicore Ag & Co. Kg Entstickung von Dieselmotorenabgasen unter Verwendung eines temperierten Vorkatalysators zur bedarfsgerechten NO2-Bereitstellung
JP5459965B2 (ja) * 2008-02-05 2014-04-02 メタウォーター株式会社 排ガス中のｎ２ｏ除去方法
JP5221647B2 (ja) * 2008-04-18 2013-06-26 本田技研工業株式会社 内燃機関の排気浄化装置
US8506893B2 (en) * 2008-04-23 2013-08-13 Ford Global Technologies, Llc Selective catalytic reduction catalyst system with expanded temperature window
US20100050604A1 (en) * 2008-08-28 2010-03-04 John William Hoard SCR-LNT CATALYST COMBINATION FOR IMPROVED NOx CONTROL OF LEAN GASOLINE AND DIESEL ENGINES
US8448424B2 (en) * 2009-01-16 2013-05-28 Ford Global Technologies, Llc. Emission control system with an integrated particulate filter and selective catalytic reduction unit
JP5254845B2 (ja) * 2009-03-03 2013-08-07 本田技研工業株式会社 排気浄化装置
JP2010229820A (ja) * 2009-03-25 2010-10-14 Nippon Soken Inc 内燃機関の排気浄化装置
WO2010146717A1 (ja) * 2009-06-15 2010-12-23 トヨタ自動車株式会社 内燃機関の排気浄化装置
US8333062B2 (en) * 2009-06-29 2012-12-18 GM Global Technology Operations LLC Method for monitoring ammonia storage in an exhaust aftertreatment system
US8491845B2 (en) * 2009-09-10 2013-07-23 Cummins Ip, Inc. Low temperature selective catalytic reduction catalyst and associated systems and methods
DE102010014468B4 (de) * 2010-04-09 2013-10-31 Umicore Ag & Co. Kg Verfahren zur Verminderung von Lachgas bei der Abgasnachbehandlung von Magermotoren
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
US20130312392A1 (en) * 2012-05-23 2013-11-28 Cary Henry Systems and methods to mitigate nox and hc emissions at low exhaust temperatures

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104775879A (zh) * 2014-01-14 2015-07-15 福特环球技术公司 控制一氧化二氮排放的方法
CN104775879B (zh) * 2014-01-14 2018-12-07 福特环球技术公司 控制一氧化二氮排放的方法

Also Published As

Publication number Publication date
US9109492B2 (en) 2015-08-18
JPWO2010146720A1 (ja) 2012-11-29
EP2444611B1 (en) 2016-01-13
JP5310851B2 (ja) 2013-10-09
WO2010146720A1 (ja) 2010-12-23
EP2444611A4 (en) 2014-12-10
EP2444611A1 (en) 2012-04-25
US20120073273A1 (en) 2012-03-29
CN102482969B (zh) 2014-05-28

Similar Documents

Publication Publication Date Title
JP5630024B2 (ja) ディーゼルエンジンの排気浄化装置及び排気浄化方法
US8640443B2 (en) Exhaust gas after treatment system (EATS)
US8679412B2 (en) Exhaust gas-purifying system
KR101028548B1 (ko) 배기가스 정화장치
US10107162B2 (en) Catalyst subassembly, device comprising same for purifying exhaust gases from an internal combustion engine, modular system for the subassembly, and method for manufacturing the subassembly
US20130115141A1 (en) Device for discharging exhaust gas from diesel engine, having ammonolysis module
US20060162323A1 (en) Diesel engine after treatment device for conversion of nitrogen oxide and particulate matter
WO2004097197A2 (en) N0x aftertreatment system and method for internal combustion engines
US8978368B2 (en) Exhaust-gas aftertreatment system and method for exhaust-gas aftertreatment
CN107636271B (zh) 用于除去来自发动机废气的颗粒物质和有害化合物的方法、多功能过滤器和系统
KR20140017570A (ko) Egr 회로에서 암모니아 슬립 촉매를 가지는 배기 시스템
CN102482969B (zh) 内燃机的排气净化装置
CN104781516A (zh) 内燃机的排气净化装置
JP2006320854A (ja) 選択還元型触媒及びそれを用いたエンジンの排ガス浄化装置
EP3364006A1 (en) Exhaust gas purification device
JP2010242515A (ja) 排気ガス浄化システム及び排気ガス浄化方法
KR20170035683A (ko) 상용차량의 배기가스 저감용 후처리장치
JP4664807B2 (ja) 粒状物質含有排ガスの浄化方法および装置
JP5409984B2 (ja) 選択還元型触媒を用いた排ガス浄化装置
US10138779B2 (en) Selective catalytic reduction filter devices having NOx storage capabilities
JP2006233939A (ja) 排ガス浄化用フィルタおよび装置
JP2012159054A (ja) 内燃機関の排気ガス浄化システム
US9708949B2 (en) Exhaust aftertreatment system for a compression-ignition engine
JP2020045862A (ja) 排ガス浄化装置
Varathavijayan et al. Experimental Investigation and Emission Reduction Test of Bio Diesel by Using SCI for Di Diesel Engine

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant