DE19726322A1 - Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper - Google Patents
Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem TragkörperInfo
- Publication number
- DE19726322A1 DE19726322A1 DE19726322A DE19726322A DE19726322A1 DE 19726322 A1 DE19726322 A1 DE 19726322A1 DE 19726322 A DE19726322 A DE 19726322A DE 19726322 A DE19726322 A DE 19726322A DE 19726322 A1 DE19726322 A1 DE 19726322A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- coating
- oxide
- exhaust gas
- finely divided
- 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.)
- Ceased
Links
- 230000003197 catalytic effect Effects 0.000 title claims description 23
- 238000002485 combustion reaction Methods 0.000 title claims description 6
- 238000004140 cleaning Methods 0.000 title description 2
- 239000003054 catalyst Substances 0.000 claims description 103
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 95
- 238000000576 coating method Methods 0.000 claims description 85
- 239000011248 coating agent Substances 0.000 claims description 83
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 62
- 229910052751 metal Inorganic materials 0.000 claims description 50
- 239000002184 metal Substances 0.000 claims description 50
- 239000010948 rhodium Substances 0.000 claims description 50
- 239000007787 solid Substances 0.000 claims description 49
- 239000007789 gas Substances 0.000 claims description 46
- 239000006185 dispersion Substances 0.000 claims description 45
- -1 Platinum group metals Chemical class 0.000 claims description 42
- 229910052684 Cerium Inorganic materials 0.000 claims description 40
- 229910052697 platinum Inorganic materials 0.000 claims description 39
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 37
- 229910052726 zirconium Inorganic materials 0.000 claims description 37
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 32
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 32
- 239000002243 precursor Substances 0.000 claims description 31
- 229910052703 rhodium Inorganic materials 0.000 claims description 31
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 31
- 150000001875 compounds Chemical class 0.000 claims description 30
- 238000000746 purification Methods 0.000 claims description 29
- QVQLCTNNEUAWMS-UHFFFAOYSA-N barium oxide Chemical compound [Ba]=O QVQLCTNNEUAWMS-UHFFFAOYSA-N 0.000 claims description 27
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 27
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 claims description 23
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 23
- 229910052763 palladium Inorganic materials 0.000 claims description 22
- 238000001354 calcination Methods 0.000 claims description 21
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 18
- 239000001301 oxygen Substances 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 18
- 239000012876 carrier material Substances 0.000 claims description 16
- 238000004519 manufacturing process Methods 0.000 claims description 15
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 15
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 12
- 239000007864 aqueous solution Substances 0.000 claims description 11
- 229910000480 nickel oxide Inorganic materials 0.000 claims description 7
- GNRSAWUEBMWBQH-UHFFFAOYSA-N oxonickel Chemical compound [Ni]=O GNRSAWUEBMWBQH-UHFFFAOYSA-N 0.000 claims description 7
- MMKQUGHLEMYQSG-UHFFFAOYSA-N oxygen(2-);praseodymium(3+) Chemical compound [O-2].[O-2].[O-2].[Pr+3].[Pr+3] MMKQUGHLEMYQSG-UHFFFAOYSA-N 0.000 claims description 6
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 claims description 5
- 239000011232 storage material Substances 0.000 claims description 3
- 239000000919 ceramic Substances 0.000 claims description 2
- ZMIGMASIKSOYAM-UHFFFAOYSA-N cerium Chemical compound [Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce][Ce] ZMIGMASIKSOYAM-UHFFFAOYSA-N 0.000 claims 7
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 32
- 239000003344 environmental pollutant Substances 0.000 description 20
- 231100000719 pollutant Toxicity 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 16
- 239000010970 precious metal Substances 0.000 description 16
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 15
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 12
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 12
- 230000032683 aging Effects 0.000 description 11
- 238000012360 testing method Methods 0.000 description 10
- 229910021193 La 2 O 3 Inorganic materials 0.000 description 8
- 238000002474 experimental method Methods 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000003860 storage Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 6
- 229930195733 hydrocarbon Natural products 0.000 description 6
- 150000002430 hydrocarbons Chemical class 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 6
- 239000000446 fuel Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- ITHZDDVSAWDQPZ-UHFFFAOYSA-L barium acetate Chemical compound [Ba+2].CC([O-])=O.CC([O-])=O ITHZDDVSAWDQPZ-UHFFFAOYSA-L 0.000 description 4
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 4
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 description 4
- 239000003381 stabilizer Substances 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- VGBWDOLBWVJTRZ-UHFFFAOYSA-K cerium(3+);triacetate Chemical compound [Ce+3].CC([O-])=O.CC([O-])=O.CC([O-])=O VGBWDOLBWVJTRZ-UHFFFAOYSA-K 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002574 poison Substances 0.000 description 3
- 231100000614 poison Toxicity 0.000 description 3
- VXNYVYJABGOSBX-UHFFFAOYSA-N rhodium(3+);trinitrate Chemical compound [Rh+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O VXNYVYJABGOSBX-UHFFFAOYSA-N 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- 229910052845 zircon Inorganic materials 0.000 description 3
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 229910052878 cordierite Inorganic materials 0.000 description 2
- 239000013078 crystal Substances 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
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- PLDDOISOJJCEMH-UHFFFAOYSA-N neodymium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Nd+3].[Nd+3] PLDDOISOJJCEMH-UHFFFAOYSA-N 0.000 description 2
- 150000002823 nitrates Chemical class 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- LYTNHSCLZRMKON-UHFFFAOYSA-L oxygen(2-);zirconium(4+);diacetate Chemical compound [O-2].[Zr+4].CC([O-])=O.CC([O-])=O LYTNHSCLZRMKON-UHFFFAOYSA-L 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- DUFCMRCMPHIFTR-UHFFFAOYSA-N 5-(dimethylsulfamoyl)-2-methylfuran-3-carboxylic acid Chemical compound CN(C)S(=O)(=O)C1=CC(C(O)=O)=C(C)O1 DUFCMRCMPHIFTR-UHFFFAOYSA-N 0.000 description 1
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 1
- 150000000703 Cerium Chemical class 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910002113 barium titanate Inorganic materials 0.000 description 1
- 239000013590 bulk material Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001785 cerium compounds Chemical class 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005202 decontamination Methods 0.000 description 1
- 230000003588 decontaminative effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 229910052732 germanium Inorganic materials 0.000 description 1
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- GKOZUEZYRPOHIO-UHFFFAOYSA-N iridium atom Chemical compound [Ir] GKOZUEZYRPOHIO-UHFFFAOYSA-N 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- SYQBFIAQOQZEGI-UHFFFAOYSA-N osmium atom Chemical compound [Os] SYQBFIAQOQZEGI-UHFFFAOYSA-N 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- NWAHZABTSDUXMJ-UHFFFAOYSA-N platinum(2+);dinitrate Chemical compound [Pt+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O NWAHZABTSDUXMJ-UHFFFAOYSA-N 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052706 scandium Inorganic materials 0.000 description 1
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 description 1
- 229910021332 silicide Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 1
- 239000003017 thermal stabilizer Substances 0.000 description 1
- 238000007669 thermal treatment Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
- B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/56—Platinum group metals
- B01J23/63—Platinum group metals with rare earths or actinides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/024—Multiple impregnation or coating
- B01J37/0244—Coatings comprising several layers
-
- 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
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19726322A DE19726322A1 (de) | 1997-06-20 | 1997-06-20 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
| JP17112898A JP4056629B2 (ja) | 1997-06-20 | 1998-06-18 | 内燃機関用排気ガス浄化触媒およびその製造方法 |
| EP98111272A EP0885650B1 (de) | 1997-06-20 | 1998-06-18 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
| DE59812704T DE59812704D1 (de) | 1997-06-20 | 1998-06-18 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
| BRPI9802036A BRPI9802036B8 (pt) | 1997-06-20 | 1998-06-19 | catalisador para tratamento de gases de exaustão para motores de combustão interna com duas camadas cataliticamente ativas sobre uma estrutura carreadora e processo para preparação de um catalisador |
| ARP980102974A AR013112A1 (es) | 1997-06-20 | 1998-06-19 | Catalizador de depuracion de gas de escape para motores de combustion interna con dos capas cataliticamente activas sobre un cuerpo portador, y procedimiento para la fabricacion de un catalizador de depuracion de gas de escape |
| US09/100,251 US6348430B1 (en) | 1997-06-20 | 1998-06-19 | Exhaust gas treatment catalyst for internal combustion engines with two catalytically active layers on a carrier structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19726322A DE19726322A1 (de) | 1997-06-20 | 1997-06-20 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE19726322A1 true DE19726322A1 (de) | 1998-12-24 |
Family
ID=7833194
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19726322A Ceased DE19726322A1 (de) | 1997-06-20 | 1997-06-20 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
| DE59812704T Expired - Lifetime DE59812704D1 (de) | 1997-06-20 | 1998-06-18 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE59812704T Expired - Lifetime DE59812704D1 (de) | 1997-06-20 | 1998-06-18 | Abgasreinigungskatalysator für Verbrennungsmotoren mit zwei katalytisch aktiven Schichten auf einem Tragkörper |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0885650B1 (enExample) |
| JP (1) | JP4056629B2 (enExample) |
| AR (1) | AR013112A1 (enExample) |
| BR (1) | BRPI9802036B8 (enExample) |
| DE (2) | DE19726322A1 (enExample) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294140B1 (en) | 1999-04-23 | 2001-09-25 | Degussa Ag | Layered noble metal-containing exhaust gas catalyst and its preparation |
| EP1046423A3 (en) * | 1999-04-23 | 2002-02-06 | OMG AG & Co. KG | Layered noble metal-containing exhaust gas catalyst and its preparation |
| DE10042818B4 (de) * | 1999-08-30 | 2013-12-05 | Daihatsu Motor Co., Ltd. | Katalytischer Umwandler zum Reinigen von Abgasen |
| DE112005001392B4 (de) | 2004-06-22 | 2022-06-23 | BASF Corporation (n.d.Ges.des Staates Delaware) | Geschichteter Katalysator zur Abgasbehandlung |
Families Citing this family (73)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000073817A (ja) * | 1998-08-28 | 2000-03-07 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
| DE19908394A1 (de) * | 1999-02-26 | 2000-08-31 | Degussa | Katalysatormaterial und Verfahren zu seiner Herstellung |
| JP3688974B2 (ja) * | 1999-05-24 | 2005-08-31 | ダイハツ工業株式会社 | 排ガス浄化用触媒 |
| JP3688947B2 (ja) * | 1999-09-03 | 2005-08-31 | ダイハツ工業株式会社 | 排気ガス浄化用触媒 |
| JP3688945B2 (ja) * | 1999-08-30 | 2005-08-31 | ダイハツ工業株式会社 | 排気ガス浄化用触媒 |
| JP3902362B2 (ja) * | 1999-09-14 | 2007-04-04 | ダイハツ工業株式会社 | 排気ガス浄化用触媒 |
| JP2001104785A (ja) * | 1999-10-08 | 2001-04-17 | Daihatsu Motor Co Ltd | 排気ガス浄化用触媒 |
| JP3688953B2 (ja) * | 1999-10-08 | 2005-08-31 | ダイハツ工業株式会社 | 排気ガス浄化用触媒 |
| JP2002079106A (ja) * | 2000-06-29 | 2002-03-19 | Mazda Motor Corp | 排気ガス浄化用触媒、及び排気ガス浄化装置 |
| US6866834B2 (en) * | 2001-03-12 | 2005-03-15 | Nissan Motor Co., Ltd. | NOx reduction catalyst and NOx reduction system |
| AU2002346693A1 (en) * | 2001-12-07 | 2003-06-23 | Dan T. Moore Company | Insulated exhaust manifold having internal catalyst support body |
| US6725656B2 (en) | 2001-12-07 | 2004-04-27 | Dan T. Moore Company | Insulated exhaust manifold |
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| JP5796928B2 (ja) * | 2008-08-27 | 2015-10-21 | ユミコア日本触媒株式会社 | 排ガス浄化用触媒およびこれを用いた排ガス浄化方法 |
| FR2937882B1 (fr) * | 2008-11-03 | 2011-04-08 | Peugeot Citroen Automobiles Sa | Procede de dimensionnement d'un catalyseur d'oxydation. |
| JP5556022B2 (ja) * | 2009-02-16 | 2014-07-23 | マツダ株式会社 | 排気ガス浄化用触媒 |
| FR2948300B1 (fr) * | 2009-07-21 | 2011-10-28 | Peugeot Citroen Automobiles Sa | Catalyseur, utilisation de ce catalyseur pour le traitement des gaz d'echappement recircules |
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| DE102021118803A1 (de) | 2021-07-21 | 2023-01-26 | Umicore Ag & Co. Kg | Abgasreinigungssystem zur Reinigung von Abgasen von Benzinmotoren |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4021570A1 (de) * | 1989-07-06 | 1991-01-10 | Mazda Motor | Katalysator zur reinigung von abgasen |
| US5057483A (en) * | 1990-02-22 | 1991-10-15 | Engelhard Corporation | Catalyst composition containing segregated platinum and rhodium components |
| WO1995035152A1 (en) * | 1994-06-17 | 1995-12-28 | Engelhard Corporation | Layered catalyst composite |
| DE19617123A1 (de) * | 1995-04-28 | 1996-10-31 | Mazda Motor | Katalysator zur Reinigung verbrannter Gase |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE462143C (sv) * | 1988-03-07 | 1996-02-19 | Heraeus Gmbh W C | Katalysator för bilavgasrening, förfarande för framställning därav samt användning därav |
| US5212142A (en) * | 1991-11-04 | 1993-05-18 | Engelhard Corporation | High performance thermally stable catalyst |
| EP0705134B1 (en) * | 1993-06-25 | 1999-04-14 | Engelhard Corporation | Layered catalyst composite |
| JP3358766B2 (ja) * | 1994-12-16 | 2002-12-24 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
| JPH08229395A (ja) * | 1995-02-24 | 1996-09-10 | Mazda Motor Corp | 排気ガス浄化用触媒 |
| US5741467A (en) * | 1995-06-07 | 1998-04-21 | Asec Manufacturing | Palladium catalyst washcoat supports for improved methane oxidation in natural gas automotive emission catalysts |
| JP3861303B2 (ja) * | 1995-10-31 | 2006-12-20 | トヨタ自動車株式会社 | 排ガス浄化用触媒 |
| US6087298A (en) * | 1996-05-14 | 2000-07-11 | Engelhard Corporation | Exhaust gas treatment system |
-
1997
- 1997-06-20 DE DE19726322A patent/DE19726322A1/de not_active Ceased
-
1998
- 1998-06-18 DE DE59812704T patent/DE59812704D1/de not_active Expired - Lifetime
- 1998-06-18 EP EP98111272A patent/EP0885650B1/de not_active Expired - Lifetime
- 1998-06-18 JP JP17112898A patent/JP4056629B2/ja not_active Expired - Lifetime
- 1998-06-19 AR ARP980102974A patent/AR013112A1/es active IP Right Grant
- 1998-06-19 BR BRPI9802036A patent/BRPI9802036B8/pt not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4021570A1 (de) * | 1989-07-06 | 1991-01-10 | Mazda Motor | Katalysator zur reinigung von abgasen |
| US5057483A (en) * | 1990-02-22 | 1991-10-15 | Engelhard Corporation | Catalyst composition containing segregated platinum and rhodium components |
| WO1995035152A1 (en) * | 1994-06-17 | 1995-12-28 | Engelhard Corporation | Layered catalyst composite |
| DE19617123A1 (de) * | 1995-04-28 | 1996-10-31 | Mazda Motor | Katalysator zur Reinigung verbrannter Gase |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6294140B1 (en) | 1999-04-23 | 2001-09-25 | Degussa Ag | Layered noble metal-containing exhaust gas catalyst and its preparation |
| EP1046423A3 (en) * | 1999-04-23 | 2002-02-06 | OMG AG & Co. KG | Layered noble metal-containing exhaust gas catalyst and its preparation |
| RU2262983C2 (ru) * | 1999-04-23 | 2005-10-27 | Умикоре Аг Унд Ко.Кг | Каталитический нейтрализатор и способ его изготовления (варианты) |
| KR100738822B1 (ko) * | 1999-04-23 | 2007-07-13 | 우미코레 아게 운트 코 카게 | 고성능 촉매 및 이의 제조방법 |
| MY138320A (en) * | 1999-04-23 | 2009-05-29 | Umicore Ag & Co Kg | High performance catalyst |
| DE10042818B4 (de) * | 1999-08-30 | 2013-12-05 | Daihatsu Motor Co., Ltd. | Katalytischer Umwandler zum Reinigen von Abgasen |
| DE112005001392B4 (de) | 2004-06-22 | 2022-06-23 | BASF Corporation (n.d.Ges.des Staates Delaware) | Geschichteter Katalysator zur Abgasbehandlung |
Also Published As
| Publication number | Publication date |
|---|---|
| BR9802036B1 (pt) | 2013-10-29 |
| BR9802036A (pt) | 1999-12-21 |
| JP4056629B2 (ja) | 2008-03-05 |
| EP0885650A3 (de) | 1999-03-31 |
| EP0885650A2 (de) | 1998-12-23 |
| BRPI9802036B8 (pt) | 2017-02-21 |
| EP0885650B1 (de) | 2005-04-06 |
| JPH1170332A (ja) | 1999-03-16 |
| DE59812704D1 (de) | 2005-05-12 |
| AR013112A1 (es) | 2000-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| 8127 | New person/name/address of the applicant |
Owner name: DEGUSSA-HUELS AG, 45772 MARL, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: DEGUSSA-HUELS AG, 60311 FRANKFURT, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: DMC2 DEGUSSA METALS CATALYSTS CERDEC AG, 60311 FRA |
|
| 8127 | New person/name/address of the applicant |
Owner name: OMG AG & CO. KG, 63457 HANAU, DE |
|
| 8127 | New person/name/address of the applicant |
Owner name: UMICORE AG & CO.KG, 63457 HANAU, DE |
|
| 8131 | Rejection |