JP2016194281A - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP2016194281A JP2016194281A JP2015075084A JP2015075084A JP2016194281A JP 2016194281 A JP2016194281 A JP 2016194281A JP 2015075084 A JP2015075084 A JP 2015075084A JP 2015075084 A JP2015075084 A JP 2015075084A JP 2016194281 A JP2016194281 A JP 2016194281A
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- JP
- Japan
- Prior art keywords
- exhaust gas
- reduction catalyst
- exhaust
- catalytic reduction
- selective catalytic
- 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
Links
- 239000007789 gas Substances 0.000 claims abstract description 137
- 239000003054 catalyst Substances 0.000 claims abstract description 114
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 claims abstract description 62
- 239000006185 dispersion Substances 0.000 claims abstract description 52
- 230000009467 reduction Effects 0.000 claims abstract description 29
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 26
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000001301 oxygen Substances 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 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 78
- 238000006722 reduction reaction Methods 0.000 claims description 21
- 238000000746 purification Methods 0.000 claims description 11
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract description 9
- 239000004202 carbamide Substances 0.000 abstract description 9
- 239000013078 crystal Substances 0.000 abstract description 7
- 238000001556 precipitation Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 28
- 238000005452 bending Methods 0.000 description 14
- 238000002156 mixing Methods 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000009191 jumping Effects 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
Images
Classifications
-
- 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)
Abstract
Description
4 選択還元型触媒
7B ミキシングパイプ(排気管路)
7C ガス分散室
11 排気導入口
14 突起
15 格子
Claims (3)
- 酸素共存下でも選択的にNOxをアンモニアと反応させ得る選択還元型触媒を備え、該選択還元型触媒より上流側で還元剤として尿素水を添加された排気ガスを前記選択還元型触媒に対し反転させて導入するようにした排気浄化装置であって、前記選択還元型触媒の入側端面を被包し且つ該入側端面に対し斜め側方の排気導入口から排気ガスを分散させつつ導き入れるガス分散室を備えると共に、該ガス分散室の全体形状を前記排気導入口から前記選択還元型触媒の入側端面までの間を最短距離で接続するように平滑化し、前記ガス分散室における排気導入口近傍で前記選択還元型触媒の入側端面と対峙している内壁面に多数の突起を形成し、前記選択還元型触媒の軸心方向に延在して該選択還元型触媒の排気流れと逆向きに排気ガスを導く排気管路を前記排気導入口の直前で曲折して前記排気導入口に接続したことを特徴とする排気浄化装置。
- ガス分散室の内壁面に形成される各突起を千鳥状に配置したことを特徴とする請求項1に記載の排気浄化装置。
- 選択還元型触媒の軸心方向にガイド面を成す格子をガス分散室の出側端面全域に配置した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 |
---|---|---|---|
JP2015075084A JP6498993B2 (ja) | 2015-04-01 | 2015-04-01 | 排気浄化装置 |
Applications Claiming Priority (1)
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JP2015075084A JP6498993B2 (ja) | 2015-04-01 | 2015-04-01 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016194281A true JP2016194281A (ja) | 2016-11-17 |
JP6498993B2 JP6498993B2 (ja) | 2019-04-10 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015075084A Active JP6498993B2 (ja) | 2015-04-01 | 2015-04-01 | 排気浄化装置 |
Country Status (1)
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JP (1) | JP6498993B2 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018084235A (ja) * | 2016-11-25 | 2018-05-31 | エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー | 排ガス処理装置 |
CN110374729A (zh) * | 2019-07-11 | 2019-10-25 | 东风商用车有限公司 | 一种箱式后处理混合器 |
KR20230139230A (ko) | 2022-03-25 | 2023-10-05 | 주식회사 엘지화학 | 화합물, 비수 전해액 및 리튬 이차전지 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1057770A (ja) * | 1996-08-26 | 1998-03-03 | Babcock Hitachi Kk | 排煙脱硝装置 |
JP2007332849A (ja) * | 2006-06-14 | 2007-12-27 | Hino Motors Ltd | 排気浄化装置 |
JP2012021505A (ja) * | 2010-07-16 | 2012-02-02 | Isuzu Motors Ltd | 排気ガス浄化装置 |
JP2013072436A (ja) * | 2011-09-28 | 2013-04-22 | J Eberspecher Gmbh & Co Kg | 混合/気化装置 |
WO2013104544A2 (de) * | 2012-01-14 | 2013-07-18 | Daimler Ag | Abgassystem einer brennkraftmaschine und verfahren zur aufbereitung eines in brennkraftmaschinenabgas eingebrachten reduktionsmittels |
-
2015
- 2015-04-01 JP JP2015075084A patent/JP6498993B2/ja active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH1057770A (ja) * | 1996-08-26 | 1998-03-03 | Babcock Hitachi Kk | 排煙脱硝装置 |
JP2007332849A (ja) * | 2006-06-14 | 2007-12-27 | Hino Motors Ltd | 排気浄化装置 |
JP2012021505A (ja) * | 2010-07-16 | 2012-02-02 | Isuzu Motors Ltd | 排気ガス浄化装置 |
JP2013072436A (ja) * | 2011-09-28 | 2013-04-22 | J Eberspecher Gmbh & Co Kg | 混合/気化装置 |
WO2013104544A2 (de) * | 2012-01-14 | 2013-07-18 | Daimler Ag | Abgassystem einer brennkraftmaschine und verfahren zur aufbereitung eines in brennkraftmaschinenabgas eingebrachten reduktionsmittels |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018084235A (ja) * | 2016-11-25 | 2018-05-31 | エーバーシュペッヒャー・エグゾースト・テクノロジー・ゲーエムベーハー・ウント・コンパニー・カーゲー | 排ガス処理装置 |
CN110374729A (zh) * | 2019-07-11 | 2019-10-25 | 东风商用车有限公司 | 一种箱式后处理混合器 |
CN110374729B (zh) * | 2019-07-11 | 2024-05-10 | 东风商用车有限公司 | 一种箱式后处理混合器 |
KR20230139230A (ko) | 2022-03-25 | 2023-10-05 | 주식회사 엘지화학 | 화합물, 비수 전해액 및 리튬 이차전지 |
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JP6498993B2 (ja) | 2019-04-10 |
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