FR2890577A1 - Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme - Google Patents
Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme Download PDFInfo
- Publication number
- FR2890577A1 FR2890577A1 FR0509275A FR0509275A FR2890577A1 FR 2890577 A1 FR2890577 A1 FR 2890577A1 FR 0509275 A FR0509275 A FR 0509275A FR 0509275 A FR0509275 A FR 0509275A FR 2890577 A1 FR2890577 A1 FR 2890577A1
- Authority
- FR
- France
- Prior art keywords
- oxide
- nox
- composition
- compound
- praseodymium
- 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
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims abstract description 121
- 239000000203 mixture Substances 0.000 title claims abstract description 83
- 238000000034 method Methods 0.000 title claims abstract description 43
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 229910001928 zirconium oxide Inorganic materials 0.000 title claims abstract description 16
- 230000008569 process Effects 0.000 title claims description 32
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 title description 11
- 150000001875 compounds Chemical class 0.000 claims abstract description 49
- 239000007789 gas Substances 0.000 claims abstract description 28
- 239000003054 catalyst Substances 0.000 claims abstract description 21
- 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 abstract description 19
- 229910003447 praseodymium oxide Inorganic materials 0.000 claims abstract description 19
- 230000003647 oxidation Effects 0.000 claims abstract description 9
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims abstract description 7
- 229910000420 cerium oxide Inorganic materials 0.000 claims abstract description 6
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims abstract description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 14
- 229910052717 sulfur Inorganic materials 0.000 claims description 13
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 11
- 239000011593 sulfur Substances 0.000 claims description 11
- 230000003197 catalytic effect Effects 0.000 claims description 9
- 229910052697 platinum Inorganic materials 0.000 claims description 7
- 239000000446 fuel Substances 0.000 claims description 6
- 239000010970 precious metal Substances 0.000 claims description 6
- 239000000243 solution Substances 0.000 description 25
- 239000002244 precipitate Substances 0.000 description 24
- 238000010438 heat treatment Methods 0.000 description 14
- 239000002609 medium Substances 0.000 description 14
- 229910052760 oxygen Inorganic materials 0.000 description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 10
- 238000001354 calcination Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 229910052777 Praseodymium Inorganic materials 0.000 description 9
- 150000007514 bases Chemical class 0.000 description 9
- 239000000047 product Substances 0.000 description 9
- 229910052726 zirconium Inorganic materials 0.000 description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 7
- 229910052757 nitrogen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 238000002360 preparation method Methods 0.000 description 7
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 239000004094 surface-active agent Substances 0.000 description 7
- 239000002585 base Substances 0.000 description 6
- 229910052739 hydrogen Inorganic materials 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
- 239000012429 reaction media Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 150000003755 zirconium compounds Chemical class 0.000 description 5
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 4
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 4
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 4
- 150000003114 praseodymium compounds Chemical class 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- OERNJTNJEZOPIA-UHFFFAOYSA-N zirconium nitrate Chemical compound [Zr+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O OERNJTNJEZOPIA-UHFFFAOYSA-N 0.000 description 4
- 229910002637 Pr6O11 Inorganic materials 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 150000001412 amines Chemical group 0.000 description 3
- 239000012153 distilled water Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 150000002823 nitrates Chemical class 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 150000003839 salts Chemical class 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 150000001213 Praseodymium Chemical class 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 2
- 150000001242 acetic acid derivatives Chemical class 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000003945 anionic surfactant Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 2
- 150000001785 cerium compounds Chemical class 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 239000000084 colloidal system Substances 0.000 description 2
- 150000002191 fatty alcohols Chemical class 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- UJVRJBAUJYZFIX-UHFFFAOYSA-N nitric acid;oxozirconium Chemical compound [Zr]=O.O[N+]([O-])=O.O[N+]([O-])=O UJVRJBAUJYZFIX-UHFFFAOYSA-N 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- YWECOPREQNXXBZ-UHFFFAOYSA-N praseodymium(3+);trinitrate Chemical compound [Pr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O YWECOPREQNXXBZ-UHFFFAOYSA-N 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010948 rhodium Substances 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000019635 sulfation Effects 0.000 description 2
- 238000005670 sulfation reaction Methods 0.000 description 2
- KLFRPGNCEJNEKU-FDGPNNRMSA-L (z)-4-oxopent-2-en-2-olate;platinum(2+) Chemical compound [Pt+2].C\C([O-])=C\C(C)=O.C\C([O-])=C\C(C)=O KLFRPGNCEJNEKU-FDGPNNRMSA-L 0.000 description 1
- WKBPZYKAUNRMKP-UHFFFAOYSA-N 1-[2-(2,4-dichlorophenyl)pentyl]1,2,4-triazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1C(CCC)CN1C=NC=N1 WKBPZYKAUNRMKP-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000264877 Hippospongia communis Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910013667 M-SO4 Inorganic materials 0.000 description 1
- 229910015853 MSO4 Inorganic materials 0.000 description 1
- 229910013670 M—SO4 Inorganic materials 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical group [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 229940056585 ammonium laurate Drugs 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- VJCJAQSLASCYAW-UHFFFAOYSA-N azane;dodecanoic acid Chemical compound [NH4+].CCCCCCCCCCCC([O-])=O VJCJAQSLASCYAW-UHFFFAOYSA-N 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000004320 controlled atmosphere Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000010908 decantation Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910021505 gold(III) hydroxide Inorganic materials 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 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
- 239000007791 liquid phase Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910017604 nitric acid Inorganic materials 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
- 239000012071 phase Substances 0.000 description 1
- 238000002459 porosimetry Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
- 150000003754 zirconium Chemical class 0.000 description 1
- ZXAUZSQITFJWPS-UHFFFAOYSA-J zirconium(4+);disulfate Chemical compound [Zr+4].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZXAUZSQITFJWPS-UHFFFAOYSA-J 0.000 description 1
- ATYZRBBOXUWECY-UHFFFAOYSA-N zirconium;hydrate Chemical compound O.[Zr] ATYZRBBOXUWECY-UHFFFAOYSA-N 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
-
- 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
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/06—Silicon, titanium, zirconium or hafnium; Oxides or hydroxides thereof
-
- 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
- B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2065—Cerium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/206—Rare earth metals
- B01D2255/2066—Praseodymium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2255/00—Catalysts
- B01D2255/20—Metals or compounds thereof
- B01D2255/207—Transition metals
- B01D2255/20715—Zirconium
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Health & Medical Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Toxicology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims (10)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0509275A FR2890577B1 (fr) | 2005-09-12 | 2005-09-12 | Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme |
US11/991,856 US20090191108A1 (en) | 2005-09-12 | 2006-09-08 | Zirconium/Praseodymium Oxide NOx Traps and Prufication of Gases Containing Nitrogen Oxides (NOx) Therewith |
CA002620088A CA2620088A1 (fr) | 2005-09-12 | 2006-09-08 | Composition a base d'oxydes de xiroconium, de praseodyme, de lanthane oule neodyme, procede de preparation et utlisation dans un systeme catalytique |
KR1020087008780A KR20080066920A (ko) | 2005-09-12 | 2006-09-08 | 산화 지르코늄 및 산화 프라세오디뮴 기재의 조성물을 질소산화물(nox) 트랩으로서 사용하는, 질소 산화물 함유가스의 처리 방법 |
JP2008530561A JP2009507634A (ja) | 2005-09-12 | 2006-09-08 | 酸化ジルコニウム及び酸化プラセオジムをベースとする組成物をNOxトラップとして使用する窒素酸化物(NOx)含有ガス処理方法 |
CNA2006800333982A CN101309741A (zh) | 2005-09-12 | 2006-09-08 | 通过将基于锆氧化物和镨氧化物的组合物用作氮氧化物(NOx)捕集剂来处理含有NOx的气体的方法 |
PCT/FR2006/002069 WO2007031627A1 (fr) | 2005-09-12 | 2006-09-08 | Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme |
EP06808095A EP1924339A1 (fr) | 2005-09-12 | 2006-09-08 | Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme |
Applications Claiming Priority (1)
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FR0509275A FR2890577B1 (fr) | 2005-09-12 | 2005-09-12 | Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme |
Publications (2)
Publication Number | Publication Date |
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FR2890577A1 true FR2890577A1 (fr) | 2007-03-16 |
FR2890577B1 FR2890577B1 (fr) | 2009-02-27 |
Family
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FR0509275A Active FR2890577B1 (fr) | 2005-09-12 | 2005-09-12 | Procede de traitement d'un gaz contenant des oxydes d'azote (nox), utilisant comme piege a nox une composition a base d'oxyde de zirconium et d'oxyde de praseodyme |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090191108A1 (fr) |
EP (1) | EP1924339A1 (fr) |
JP (1) | JP2009507634A (fr) |
KR (1) | KR20080066920A (fr) |
CN (1) | CN101309741A (fr) |
CA (1) | CA2620088A1 (fr) |
FR (1) | FR2890577B1 (fr) |
WO (1) | WO2007031627A1 (fr) |
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EP2628912B1 (fr) | 2011-11-07 | 2017-05-03 | Toyota Jidosha Kabushiki Kaisha | Dispositif d'épuration des gaz d'échappement destiné à un moteur à combustion interne |
JP5288055B1 (ja) | 2011-11-09 | 2013-09-11 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP5273304B1 (ja) | 2011-11-30 | 2013-08-28 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
EP2623738B1 (fr) | 2011-11-30 | 2019-08-21 | Toyota Jidosha Kabushiki Kaisha | Procédé de purification des nox d'un système de purification de gaz d'échappement d'un moteur à combustion interne |
WO2013118254A1 (fr) | 2012-02-07 | 2013-08-15 | トヨタ自動車株式会社 | Dispositif de purification d'échappement pour moteur à combustion interne |
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- 2006-09-08 EP EP06808095A patent/EP1924339A1/fr not_active Withdrawn
- 2006-09-08 KR KR1020087008780A patent/KR20080066920A/ko not_active Application Discontinuation
- 2006-09-08 CA CA002620088A patent/CA2620088A1/fr not_active Abandoned
- 2006-09-08 WO PCT/FR2006/002069 patent/WO2007031627A1/fr active Application Filing
- 2006-09-08 US US11/991,856 patent/US20090191108A1/en not_active Abandoned
- 2006-09-08 CN CNA2006800333982A patent/CN101309741A/zh active Pending
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009144204A1 (fr) * | 2008-05-27 | 2009-12-03 | Peugeot Citroën Automobiles SA | Traitement de gaz d'echappement |
FR2931700A1 (fr) * | 2008-05-27 | 2009-12-04 | Peugeot Citroen Automobiles Sa | Traitement de gaz d'echappement. |
WO2010092274A1 (fr) * | 2009-02-13 | 2010-08-19 | Peugeot Citroën Automobiles SA | Catalyseur pour le vaporeformage d ' hydrocabures et son utilisation dans un dispositif de recyclage des gaz d ' echappement |
FR2942151A1 (fr) * | 2009-02-13 | 2010-08-20 | Peugeot Citroen Automobiles Sa | Catalyseur pour le vaporeformage d'hydrocarbures |
FR2962350A1 (fr) * | 2010-07-07 | 2012-01-13 | Peugeot Citroen Automobiles Sa | Composition catalytique pour le vapo-reformage d'hydrocarbures |
Also Published As
Publication number | Publication date |
---|---|
WO2007031627A1 (fr) | 2007-03-22 |
KR20080066920A (ko) | 2008-07-17 |
CA2620088A1 (fr) | 2007-03-22 |
JP2009507634A (ja) | 2009-02-26 |
FR2890577B1 (fr) | 2009-02-27 |
CN101309741A (zh) | 2008-11-19 |
US20090191108A1 (en) | 2009-07-30 |
EP1924339A1 (fr) | 2008-05-28 |
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