JP6745401B2 - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP6745401B2 JP6745401B2 JP2019515047A JP2019515047A JP6745401B2 JP 6745401 B2 JP6745401 B2 JP 6745401B2 JP 2019515047 A JP2019515047 A JP 2019515047A JP 2019515047 A JP2019515047 A JP 2019515047A JP 6745401 B2 JP6745401 B2 JP 6745401B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- oxidation catalyst
- flow passage
- exhaust
- doc
- 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.)
- Active
Links
- 238000000746 purification Methods 0.000 title claims description 18
- 239000007789 gas Substances 0.000 claims description 89
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 41
- 239000003054 catalyst Substances 0.000 claims description 35
- 230000003647 oxidation Effects 0.000 claims description 27
- 238000007254 oxidation reaction Methods 0.000 claims description 27
- 238000011144 upstream manufacturing Methods 0.000 claims description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- 239000003638 chemical reducing agent Substances 0.000 claims description 10
- 238000004080 punching Methods 0.000 claims description 9
- 238000002485 combustion reaction Methods 0.000 claims description 8
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 5
- 229910021529 ammonia Inorganic materials 0.000 claims description 5
- 239000004202 carbamide Substances 0.000 claims description 5
- 230000001590 oxidative effect Effects 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 3
- 238000009792 diffusion process Methods 0.000 description 11
- 238000004891 communication Methods 0.000 description 9
- 239000013618 particulate matter Substances 0.000 description 7
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 7
- 238000006722 reduction reaction Methods 0.000 description 5
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- F01N3/24—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 constructional aspects of converting apparatus
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Gas After Treatment (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2017/017029 WO2018198347A1 (fr) | 2017-04-28 | 2017-04-28 | Dispositif d'épuration de gaz d'échappement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPWO2018198347A1 JPWO2018198347A1 (ja) | 2020-01-16 |
| JP6745401B2 true JP6745401B2 (ja) | 2020-08-26 |
Family
ID=63919588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2019515047A Active JP6745401B2 (ja) | 2017-04-28 | 2017-04-28 | 排気浄化装置 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6745401B2 (fr) |
| WO (1) | WO2018198347A1 (fr) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4866628B2 (ja) * | 2006-02-24 | 2012-02-01 | 株式会社小松製作所 | 内燃機関の排気ガス浄化装置 |
| JP2012140964A (ja) * | 2012-03-23 | 2012-07-26 | Yanmar Co Ltd | 排気ガス浄化装置 |
| DE102013219640A1 (de) * | 2013-09-27 | 2015-04-02 | Eberspächer Exhaust Technology GmbH & Co. KG | Abgasbehandlungseinrichtung |
| JP2015108377A (ja) * | 2015-01-15 | 2015-06-11 | ヤンマー株式会社 | エンジン装置 |
-
2017
- 2017-04-28 WO PCT/JP2017/017029 patent/WO2018198347A1/fr active Application Filing
- 2017-04-28 JP JP2019515047A patent/JP6745401B2/ja active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2018198347A1 (ja) | 2020-01-16 |
| WO2018198347A1 (fr) | 2018-11-01 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
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