JPH0582255B2 - - Google Patents
Info
- Publication number
- JPH0582255B2 JPH0582255B2 JP60211636A JP21163685A JPH0582255B2 JP H0582255 B2 JPH0582255 B2 JP H0582255B2 JP 60211636 A JP60211636 A JP 60211636A JP 21163685 A JP21163685 A JP 21163685A JP H0582255 B2 JPH0582255 B2 JP H0582255B2
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- coating layer
- cerium oxide
- exhaust gas
- alumina
- 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.)
- Expired - Lifetime
Links
- 239000003054 catalyst Substances 0.000 claims description 66
- 239000011247 coating layer Substances 0.000 claims description 33
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 29
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 29
- 239000007789 gas Substances 0.000 claims description 28
- 239000011148 porous material Substances 0.000 claims description 28
- 239000010410 layer Substances 0.000 claims description 21
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 19
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 15
- 239000003795 chemical substances by application Substances 0.000 claims description 11
- 239000010948 rhodium Substances 0.000 claims description 10
- 229910052697 platinum Inorganic materials 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 6
- 239000001301 oxygen Substances 0.000 claims description 6
- 229910052760 oxygen Inorganic materials 0.000 claims description 6
- 229910052763 palladium Inorganic materials 0.000 claims description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 229910003450 rhodium oxide Inorganic materials 0.000 claims 1
- 238000000746 purification Methods 0.000 description 21
- 230000007423 decrease Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 239000002002 slurry Substances 0.000 description 10
- 239000002245 particle Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052703 rhodium Inorganic materials 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002904 solvent Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000004094 surface-active agent Substances 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 230000003197 catalytic effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910017604 nitric acid Inorganic materials 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 239000010970 precious metal Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 229910001593 boehmite Inorganic materials 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 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 2
- 238000010438 heat treatment Methods 0.000 description 2
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- MUHFRORXWCGZGE-KTKRTIGZSA-N 2-hydroxyethyl (z)-octadec-9-enoate Chemical compound CCCCCCCC\C=C/CCCCCCCC(=O)OCCO MUHFRORXWCGZGE-KTKRTIGZSA-N 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- SONJTKJMTWTJCT-UHFFFAOYSA-K rhodium(iii) chloride Chemical compound [Cl-].[Cl-].[Cl-].[Rh+3] SONJTKJMTWTJCT-UHFFFAOYSA-K 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Catalysts (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60211636A JPS6271539A (ja) | 1985-09-24 | 1985-09-24 | エンジンの排気ガス浄化用触媒 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60211636A JPS6271539A (ja) | 1985-09-24 | 1985-09-24 | エンジンの排気ガス浄化用触媒 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6271539A JPS6271539A (ja) | 1987-04-02 |
| JPH0582255B2 true JPH0582255B2 (enrdf_load_html_response) | 1993-11-18 |
Family
ID=16609059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60211636A Granted JPS6271539A (ja) | 1985-09-24 | 1985-09-24 | エンジンの排気ガス浄化用触媒 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6271539A (enrdf_load_html_response) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110485A (ja) * | 2004-10-15 | 2006-04-27 | Johnson Matthey Japan Inc | 排気ガス触媒およびそれを用いた排気ガス処理装置 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090220697A1 (en) * | 2008-02-29 | 2009-09-03 | William Peter Addiego | Washcoat composition and methods of making and using |
-
1985
- 1985-09-24 JP JP60211636A patent/JPS6271539A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006110485A (ja) * | 2004-10-15 | 2006-04-27 | Johnson Matthey Japan Inc | 排気ガス触媒およびそれを用いた排気ガス処理装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6271539A (ja) | 1987-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4454855B2 (ja) | ロジウム、ジルコニアおよび希土類元素酸化物を含んでなる排ガス触媒 | |
| KR100484688B1 (ko) | 엔진배기가스처리장치및사용방법 | |
| CN111841534A (zh) | 废气净化用催化剂 | |
| US5202300A (en) | Catalyst for purification of exhaust gas | |
| JP3272019B2 (ja) | 排気ガス浄化用触媒 | |
| JPH0699069A (ja) | 排気ガス浄化用触媒 | |
| JPH0547263B2 (enrdf_load_html_response) | ||
| JPH0338894B2 (enrdf_load_html_response) | ||
| JPH0582256B2 (enrdf_load_html_response) | ||
| JPH0338892B2 (enrdf_load_html_response) | ||
| JP4450984B2 (ja) | 排ガス浄化用触媒 | |
| JPH0582255B2 (enrdf_load_html_response) | ||
| JP3872153B2 (ja) | 排ガス浄化用触媒 | |
| JPS63178847A (ja) | 排気ガス浄化用触媒 | |
| JPH0622675B2 (ja) | エンジンの排気ガス浄化用触媒 | |
| JP2598817B2 (ja) | 排ガス浄化用触媒 | |
| JPH0582257B2 (enrdf_load_html_response) | ||
| JPS6178438A (ja) | 排気ガス浄化用モノリス触媒 | |
| JPH0622674B2 (ja) | エンジンの排気ガス浄化用触媒 | |
| JPS6320036A (ja) | 排ガス浄化用触媒の製造方法 | |
| JP2533516B2 (ja) | 排気ガス浄化用触媒およびその製造法 | |
| JPH0338893B2 (enrdf_load_html_response) | ||
| JPH0337975B2 (enrdf_load_html_response) | ||
| JPH0573464B2 (enrdf_load_html_response) | ||
| JP2023135104A (ja) | 排ガス浄化用触媒 |