JP5987010B2 - ジルコニウム、セリウムおよびニオブを含む組成物を触媒として用いて、酸化窒素(NOx)を含有するガスを処理する方法 - Google Patents
ジルコニウム、セリウムおよびニオブを含む組成物を触媒として用いて、酸化窒素(NOx)を含有するガスを処理する方法 Download PDFInfo
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- JP5987010B2 JP5987010B2 JP2013557041A JP2013557041A JP5987010B2 JP 5987010 B2 JP5987010 B2 JP 5987010B2 JP 2013557041 A JP2013557041 A JP 2013557041A JP 2013557041 A JP2013557041 A JP 2013557041A JP 5987010 B2 JP5987010 B2 JP 5987010B2
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- niobium
- zirconium
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- 239000000203 mixture Substances 0.000 title claims description 66
- 238000000034 method Methods 0.000 title claims description 42
- 239000003054 catalyst Substances 0.000 title claims description 35
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 title claims description 17
- 229910052684 Cerium Inorganic materials 0.000 title claims description 16
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 title claims description 15
- 229910052726 zirconium Inorganic materials 0.000 title claims description 13
- 229910052758 niobium Inorganic materials 0.000 title claims description 11
- 239000010955 niobium Substances 0.000 title claims description 11
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 title claims description 11
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 title claims 3
- 230000008569 process Effects 0.000 claims description 23
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 21
- 239000010457 zeolite Substances 0.000 claims description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 18
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 17
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 17
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 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
- 229910021536 Zeolite Inorganic materials 0.000 claims description 13
- 229910000484 niobium oxide Inorganic materials 0.000 claims description 13
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 13
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000006722 reduction reaction Methods 0.000 claims description 9
- 229910021529 ammonia Inorganic materials 0.000 claims description 8
- 239000003638 chemical reducing agent Substances 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 4
- 239000004202 carbamide Substances 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 150000004679 hydroxides Chemical class 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052750 molybdenum Inorganic materials 0.000 claims description 2
- 239000011733 molybdenum Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 229910052719 titanium Inorganic materials 0.000 claims description 2
- 239000010936 titanium Substances 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 claims 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims 1
- 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 description 16
- 239000000243 solution Substances 0.000 description 16
- 229910052761 rare earth metal Inorganic materials 0.000 description 9
- 150000002910 rare earth metals Chemical class 0.000 description 9
- 238000001354 calcination Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 8
- XFHGGMBZPXFEOU-UHFFFAOYSA-I azanium;niobium(5+);oxalate Chemical compound [NH4+].[Nb+5].[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O.[O-]C(=O)C([O-])=O XFHGGMBZPXFEOU-UHFFFAOYSA-I 0.000 description 7
- 239000000843 powder Substances 0.000 description 6
- 238000006555 catalytic reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000005470 impregnation Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 4
- 239000010937 tungsten Substances 0.000 description 4
- 229910052721 tungsten Inorganic materials 0.000 description 4
- 229910000323 aluminium silicate Inorganic materials 0.000 description 3
- -1 and these elements Chemical compound 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 2
- OAKJQQAXSVQMHS-UHFFFAOYSA-N Hydrazine Chemical compound NN OAKJQQAXSVQMHS-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 229910052777 Praseodymium Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000008139 complexing agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 150000002822 niobium compounds Chemical class 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 2
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 1
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 description 1
- 235000012538 ammonium bicarbonate Nutrition 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- VZTDIZULWFCMLS-UHFFFAOYSA-N ammonium formate Chemical compound [NH4+].[O-]C=O VZTDIZULWFCMLS-UHFFFAOYSA-N 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000005341 cation exchange Methods 0.000 description 1
- CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 1
- DRVWBEJJZZTIGJ-UHFFFAOYSA-N cerium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Ce+3].[Ce+3] DRVWBEJJZZTIGJ-UHFFFAOYSA-N 0.000 description 1
- 229910000422 cerium(IV) oxide Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000000975 co-precipitation Methods 0.000 description 1
- 229910052878 cordierite Inorganic materials 0.000 description 1
- 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 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
- 238000000605 extraction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005342 ion exchange Methods 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
- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- DCKVFVYPWDKYDN-UHFFFAOYSA-L oxygen(2-);titanium(4+);sulfate Chemical compound [O-2].[Ti+4].[O-]S([O-])(=O)=O DCKVFVYPWDKYDN-UHFFFAOYSA-L 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 239000010948 rhodium Substances 0.000 description 1
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052596 spinel Inorganic materials 0.000 description 1
- 239000011029 spinel Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 229910000348 titanium sulfate Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- GPPXJZIENCGNKB-UHFFFAOYSA-N vanadium Chemical compound [V]#[V] GPPXJZIENCGNKB-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
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- 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
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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- 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
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- 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
- B01J21/066—Zirconium or hafnium; Oxides or hydroxides thereof
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- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
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- 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
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- B01J29/00—Catalysts comprising molecular sieves
- B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
- B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
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Description
−5%から50%の間で後者の値が除外される酸化セリウム、
−5%から20%の間の酸化ニオブ、
−酸化ジルコニウムとしての残部
を有する組成物を含む触媒系が、この還元反応の触媒として利用されることを特徴とする。
−5%から50%の間で後者の値が除外される酸化セリウム、
−5%から20%までの酸化ニオブ、
−最大20%の元素Mの酸化物、
−酸化ジルコニウムとしての残部
を有する。
4NO+4NH3+O2→4N2+6H2O(1)
式(2)に従ったNOx中に存在するNO2とNH3との反応への言及がさらになされ得る。
3NO2+4NH3→(7/2)N2+6H2O(2)
さらに、NH3とNOとNO2の間の反応は、式(3)により表され得る。
NO+NO2+2NH3→2N2+3H2O(3)
このプロセスは、内燃機関(可搬式または固定式)、特に自動車のエンジンから発生するガスの処理、または、ガスタービン、石炭もしくは燃料油を用いて稼働している発電所、または任意の他の工業プラントから発生するガスの処理のために用いられ得る。
この実施例は、それぞれ重量により18%、72%および10%の比率の酸化セリウム、酸化ジルコニウムおよび酸化ニオブを主体とした組成物の調製に関する。
この実施例は、それぞれ重量により19%、74%および7%の比率の酸化セリウム、酸化ジルコニウムおよび酸化ニオブを主体とした組成物の調製に関する。
この比較例は、それぞれ重量により19%、78%および3%の比率の酸化セリウム、酸化ジルコニウムおよび酸化ニオブを主体とした組成物の調製に関する。
この実施例は、SCR触媒作用における先行する例の組成物の触媒特性を記述する。これらの特性は、下記条件下で評価される。
Claims (12)
- 窒素系還元剤によるNOxの還元反応が実施される、酸化窒素(NOx)を含むガスを処理するための方法であって、ジルコニウム、セリウムおよびニオブからなり、これら三つの元素は酸化物、水酸化物またはオキシ水酸化物の形態にて組成物中に存在し、酸化物として表される以下の重量含有率:
−5%から50%の間で後者の値が除外される酸化セリウム、
−5%から20%の間の酸化ニオブ、
−酸化ジルコニウムとしての残部
を有する組成物を含む触媒系が、この還元反応の触媒として利用されることを特徴とする方法。 - 窒素系還元剤によるNOxの還元反応が実施される、酸化窒素(NOx)を含むガスを処理するための方法であって、ジルコニウム、セリウムおよびニオブ、ならびにモリブデン、鉄、銅、ケイ素、アルミニウム、チタン、およびバナジウムからなる群より選択される少なくとも1つの元素Mからなり、これら元素は酸化物、水酸化物またはオキシ水酸化物の形態で組成物中に存在し、酸化物の重量として表される以下の比率:
−5%から50%の間で後者の値が除外される酸化セリウム、
−5%から20%までの酸化ニオブ、
−最大20%の元素Mの酸化物、
−酸化ジルコニウムとしての残部
を有する組成物を含む触媒系が、この還元反応の触媒として利用されることを特徴とする方法。 - 上記組成物が、酸化セリウムとして5%から40%の間の重量比率を示すことを特徴とする、請求項1または2に記載の方法。
- 上記組成物が、酸化セリウムとして10%から40%の間の重量比率を示すことを特徴とする、請求項1から3のいずれか一項に記載の方法。
- 上記組成物が、酸化セリウムとして10%から30%の間の重量比率を示すことを特徴とする、請求項1から4のいずれか一項に記載の方法。
- 上記組成物が、酸化ニオブとして5%から15%の間の重量比率を示すことを特徴とする、請求項1から5のいずれか一項に記載の方法。
- 上記組成物が、酸化ニオブとして5%から10%の間の重量比率を示すことを特徴とする、請求項1から6のいずれか一項に記載の方法。
- 上記触媒系がゼオライトを含むことを特徴とする、請求項1から7のいずれか一項に記載の方法。
- 窒素系還元剤としてアンモニアまたは尿素が利用されることを特徴とする、請求項1から8のいずれか一項に記載の方法。
- 自動車のエンジンからの排気ガスが処理されることを特徴とする、請求項1から9のいずれか一項に記載の方法。
- 上記触媒系が粒子フィルター上に配置されていることを特徴とする、請求項10に記載の方法。
- 上記組成物が押出物形態であることを特徴とする、請求項10に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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FR11/00685 | 2011-03-08 | ||
FR1100685A FR2972366B1 (fr) | 2011-03-08 | 2011-03-08 | Procede de traitement d'un gaz contenant des oxydes d'azote (nox) utilisant comme catalyseur une composition a base de zirconium, de cerium et de niobium |
PCT/EP2012/053334 WO2013037507A1 (fr) | 2011-03-08 | 2012-02-28 | Procede de traitement d'un gaz contenant des oxydes d'azotes (nox) utilisant comme catalyseur une composition a base de zirconium, de cerium et de niobium |
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JP2014516763A JP2014516763A (ja) | 2014-07-17 |
JP5987010B2 true JP5987010B2 (ja) | 2016-09-06 |
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US (1) | US9011806B2 (ja) |
EP (1) | EP2683466A1 (ja) |
JP (1) | JP5987010B2 (ja) |
KR (2) | KR20130133277A (ja) |
CN (1) | CN103702744B (ja) |
CA (1) | CA2827534C (ja) |
FR (1) | FR2972366B1 (ja) |
RU (1) | RU2566794C2 (ja) |
WO (1) | WO2013037507A1 (ja) |
ZA (1) | ZA201306486B (ja) |
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JP6101519B2 (ja) * | 2013-03-13 | 2017-03-22 | 東京濾器株式会社 | 触媒ユニット |
FR3003557B1 (fr) * | 2013-03-19 | 2015-05-01 | Rhodia Operations | Composition a base d'oxyde de zirconium, de cerium, de niobium et d'etain, procede de preparation et utilisation en catalyse |
US20140302983A1 (en) * | 2013-04-04 | 2014-10-09 | Cdti | System and Method for Two and Three Way NB-ZR Catalyst |
US9555371B2 (en) | 2013-12-30 | 2017-01-31 | Johnson Matthey Public Limited Company | Selective catalytic reduction processes using doped cerias |
CN104368329B (zh) * | 2014-09-19 | 2017-03-15 | 中国科学院生态环境研究中心 | 一种铈铌锆复合氧化物催化剂、制备方法及其用途 |
CA2959221A1 (en) * | 2014-09-22 | 2016-03-31 | Treibacher Industrie Ag | Thermally stable nh3-scr catalyst compositions |
CN106111149A (zh) * | 2016-06-16 | 2016-11-16 | 浙江三龙催化剂有限公司 | 船舶用脱硝催化剂及其制备方法 |
GB2560940A (en) * | 2017-03-29 | 2018-10-03 | Johnson Matthey Plc | Three layer NOx Adsorber catalyst |
US11167273B2 (en) | 2017-10-03 | 2021-11-09 | Basf Corporation | Catalytic composites comprising Nb2O5/CeO2 SCR component |
KR20200067216A (ko) * | 2017-11-02 | 2020-06-11 | 바스프 코포레이션 | 삼-방향 촉매 적용을 위한 로듐 지지체로서의 산화 니오븀-도핑된 물질 |
US10500562B2 (en) | 2018-04-05 | 2019-12-10 | Magnesium Elektron Ltd. | Zirconia-based compositions for use in passive NOx adsorber devices |
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CN112473682B (zh) * | 2020-11-24 | 2021-11-30 | 南京大学 | 一种高性能中低温nh3-scr催化剂及其制备方法和应用 |
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DE3906136C1 (ja) * | 1989-02-28 | 1990-08-09 | Degussa Ag, 6000 Frankfurt, De | |
FR2699524B1 (fr) | 1992-12-21 | 1995-02-10 | Rhone Poulenc Chimie | Composition à base d'un oxyde mixte de cérium et de zirconium, préparation et utilisation. |
FR2701472B1 (fr) * | 1993-02-10 | 1995-05-24 | Rhone Poulenc Chimie | Procédé de préparation de compositions à base d'oxydes mixtes de zirconium et de cérium. |
FR2701471B1 (fr) | 1993-02-10 | 1995-05-24 | Rhone Poulenc Chimie | Procédé de synthèse de compositions à base d'oxydes mixtes de zirconium et de cérium, compositions ainsi obtenues et utilisations de ces dernières. |
JPH06320008A (ja) * | 1993-05-10 | 1994-11-22 | Sekiyu Sangyo Kasseika Center | 窒素酸化物接触還元用触媒 |
WO1996011740A1 (fr) * | 1994-10-13 | 1996-04-25 | Rhone-Poulenc Chimie | Compositions catalytiques pour la reduction des oxydes d'azote a base de tantale, de vanadium, de niobium, de cuivre ou d'antimoine |
FR2736343B1 (fr) | 1995-07-03 | 1997-09-19 | Rhone Poulenc Chimie | Composition a base d'oxyde de zirconium et d'oxyde de cerium, procede de preparation et utilisation |
FR2841547B1 (fr) | 2002-06-26 | 2005-05-06 | Rhodia Elect & Catalysis | Composition a base d'oxyde de zirconium et d'oxydes de cerium, de lanthane et d'une autre terre rare, son procede de preparation et son utilisation comme catalyseur |
FR2852591B1 (fr) | 2003-03-18 | 2006-06-16 | Rhodia Elect & Catalysis | Composition a base d'oxyde de zirconium et d'oxyde de cerium a temperature maximale de reductibilite reduite, son procede de preparation et son utilisation comme catalyseur |
US20050202966A1 (en) * | 2004-03-11 | 2005-09-15 | W.C. Heraeus Gmbh | Catalyst for the decomposition of N2O in the Ostwald process |
KR101076945B1 (ko) | 2006-02-17 | 2011-10-26 | 로디아 오퍼레이션스 | 지르코늄, 세륨, 이트륨, 란타늄의 산화물 및 또 다른 희토류의 산화물을 기재로 하는 조성물, 그의 제조 방법 및 촉매 용도 |
FR2898887B1 (fr) | 2006-03-21 | 2008-05-02 | Rhodia Recherches & Tech | Composition a base d'oxyde de zirconium et d'oxyde de cerium a reductibilite elevee et a surface specifique stable procede de preparation et utilisation dans le traitement des gaz d'echappement |
CA2652137C (fr) | 2006-05-15 | 2016-09-13 | Rhodia Operations | Composition a base d'oxydes de zirconium, de cerium, de lanthane et d'yttrium, de gadolinium ou de samarium, a surface specifique et reductibilite elevees, procede de preparation et utilisation comme catalyseur |
US20080095682A1 (en) | 2006-10-19 | 2008-04-24 | Kharas Karl C | Ce-Zr-R-O CATALYSTS, ARTICLES COMPRISING THE Ce Zr R O CATALYSTS AND METHODS OF MAKING AND USING THE Ce-Zr-R-O CATALYSTS |
US7527776B2 (en) * | 2007-01-09 | 2009-05-05 | Catalytic Solutions, Inc. | Ammonia SCR catalyst and method of using the catalyst |
US7767175B2 (en) * | 2007-01-09 | 2010-08-03 | Catalytic Solutions, Inc. | Ammonia SCR catalyst and method of using the catalyst |
WO2009104500A1 (ja) * | 2008-02-20 | 2009-08-27 | 昭和電工株式会社 | 触媒用担体、触媒およびその製造方法 |
KR20130097076A (ko) * | 2010-04-20 | 2013-09-02 | 우미코레 아게 운트 코 카게 | 배기 가스 중의 질소 산화물을 선택적으로 촉매 환원시키기 위한 신규한 혼합된 산화물 물질 |
FR2962431B1 (fr) * | 2010-07-07 | 2018-01-19 | Rhodia Operations | Composition a base d'oxydes de cerium, de niobium et, eventuellement, de zirconium et son utilisation en catlyse. |
WO2012065933A1 (de) * | 2010-11-16 | 2012-05-24 | Umicore Ag & Co. Kg | Katalysator zur entfernung von stickoxiden aus dem abgas von dieselmotoren |
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2011
- 2011-03-08 FR FR1100685A patent/FR2972366B1/fr not_active Expired - Fee Related
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2012
- 2012-02-28 KR KR1020137026055A patent/KR20130133277A/ko active Application Filing
- 2012-02-28 WO PCT/EP2012/053334 patent/WO2013037507A1/fr active Application Filing
- 2012-02-28 US US14/001,584 patent/US9011806B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
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CA2827534C (fr) | 2015-09-29 |
FR2972366A1 (fr) | 2012-09-14 |
ZA201306486B (en) | 2014-05-28 |
CN103702744B (zh) | 2016-02-03 |
JP2014516763A (ja) | 2014-07-17 |
US9011806B2 (en) | 2015-04-21 |
CN103702744A (zh) | 2014-04-02 |
KR101761077B1 (ko) | 2017-07-24 |
RU2566794C2 (ru) | 2015-10-27 |
KR20130133277A (ko) | 2013-12-06 |
US20140044629A1 (en) | 2014-02-13 |
FR2972366B1 (fr) | 2016-01-15 |
EP2683466A1 (fr) | 2014-01-15 |
WO2013037507A1 (fr) | 2013-03-21 |
KR20160034422A (ko) | 2016-03-29 |
RU2013144923A (ru) | 2015-04-20 |
CA2827534A1 (fr) | 2013-03-21 |
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