JP2014202192A - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP2014202192A JP2014202192A JP2013081712A JP2013081712A JP2014202192A JP 2014202192 A JP2014202192 A JP 2014202192A JP 2013081712 A JP2013081712 A JP 2013081712A JP 2013081712 A JP2013081712 A JP 2013081712A JP 2014202192 A JP2014202192 A JP 2014202192A
- Authority
- JP
- Japan
- Prior art keywords
- reduction catalyst
- ammonia
- selective reduction
- exhaust
- wall
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 80
- 239000003054 catalyst Substances 0.000 claims abstract description 77
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 40
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 239000010949 copper Substances 0.000 claims abstract description 23
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052802 copper Inorganic materials 0.000 claims abstract description 22
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 claims abstract description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000001301 oxygen Substances 0.000 claims abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 5
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 4
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 4
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 33
- 238000006722 reduction reaction Methods 0.000 claims description 31
- 239000007789 gas Substances 0.000 claims description 22
- 238000000746 purification Methods 0.000 claims description 10
- 230000001590 oxidative effect Effects 0.000 claims description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- JSKIRARMQDRGJZ-UHFFFAOYSA-N dimagnesium dioxido-bis[(1-oxido-3-oxo-2,4,6,8,9-pentaoxa-1,3-disila-5,7-dialuminabicyclo[3.3.1]nonan-7-yl)oxy]silane Chemical compound [Mg++].[Mg++].[O-][Si]([O-])(O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2)O[Al]1O[Al]2O[Si](=O)O[Si]([O-])(O1)O2 JSKIRARMQDRGJZ-UHFFFAOYSA-N 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- 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
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Abstract
Description
2 排気管(排気流路)
4 選択還元型触媒
8 尿素水添加用インジェクタ
10 アンモニア低減触媒
11 ウォールスルー型式のフィルタ
Claims (4)
- 排気流路の途中に酸素共存下でも選択的にNOxをアンモニアと反応せしめる選択還元型触媒を装備し、該選択還元型触媒より上流側に還元剤として尿素水を添加し得るように構成した排気浄化装置であって、前記選択還元型触媒より下流側に、該選択還元型触媒から脱離した金属活性種を捕捉することが可能なウォールスルー型式のフィルタを配置したことを特徴とする排気浄化装置。
- 選択還元型触媒の金属活性種として銅が採用されていることを特徴とする請求項1に記載の排気浄化装置。
- ウォールスルー型式のフィルタに、余剰のアンモニアを酸化処理するアンモニア低減触媒が担持されていることを特徴とする請求項1又は2に記載の排気浄化装置。
- 選択還元型触媒とウォールスルー型式のフィルタとの間に、余剰のアンモニアを酸化処理するアンモニア低減触媒が配置されていることを特徴とする請求項1又は2に記載の排気浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013081712A JP2014202192A (ja) | 2013-04-10 | 2013-04-10 | 排気浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2013081712A JP2014202192A (ja) | 2013-04-10 | 2013-04-10 | 排気浄化装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2014202192A true JP2014202192A (ja) | 2014-10-27 |
Family
ID=52352842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2013081712A Pending JP2014202192A (ja) | 2013-04-10 | 2013-04-10 | 排気浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2014202192A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016118182A (ja) * | 2014-12-22 | 2016-06-30 | トヨタ自動車株式会社 | フィルタの故障診断装置 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003328724A (ja) * | 2002-05-15 | 2003-11-19 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気ガス浄化装置 |
WO2011162030A1 (ja) * | 2010-06-24 | 2011-12-29 | エヌ・イー ケムキャット株式会社 | 選択還元触媒を用いた排気ガス浄化触媒装置、排気ガス浄化方法、および排気ガス浄化触媒装置を搭載したディーゼル自動車 |
JP2012522636A (ja) * | 2009-04-03 | 2012-09-27 | ビーエーエスエフ コーポレーション | アンモニア生成触媒およびscr触媒を備える排出処理システム |
-
2013
- 2013-04-10 JP JP2013081712A patent/JP2014202192A/ja active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003328724A (ja) * | 2002-05-15 | 2003-11-19 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気ガス浄化装置 |
JP2012522636A (ja) * | 2009-04-03 | 2012-09-27 | ビーエーエスエフ コーポレーション | アンモニア生成触媒およびscr触媒を備える排出処理システム |
WO2011162030A1 (ja) * | 2010-06-24 | 2011-12-29 | エヌ・イー ケムキャット株式会社 | 選択還元触媒を用いた排気ガス浄化触媒装置、排気ガス浄化方法、および排気ガス浄化触媒装置を搭載したディーゼル自動車 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2016118182A (ja) * | 2014-12-22 | 2016-06-30 | トヨタ自動車株式会社 | フィルタの故障診断装置 |
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