JP6787935B2 - 単一層又は二層アンモニアスリップ触媒 - Google Patents
単一層又は二層アンモニアスリップ触媒 Download PDFInfo
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- JP6787935B2 JP6787935B2 JP2017565207A JP2017565207A JP6787935B2 JP 6787935 B2 JP6787935 B2 JP 6787935B2 JP 2017565207 A JP2017565207 A JP 2017565207A JP 2017565207 A JP2017565207 A JP 2017565207A JP 6787935 B2 JP6787935 B2 JP 6787935B2
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- catalyst
- scr
- molecular sieve
- scr catalyst
- platinum
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- 239000003054 catalyst Substances 0.000 title claims description 218
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims description 104
- 239000010410 layer Substances 0.000 title claims description 70
- 229910021529 ammonia Inorganic materials 0.000 title claims description 51
- 239000002356 single layer Substances 0.000 title claims description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 97
- 239000002808 molecular sieve Substances 0.000 claims description 92
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 92
- 239000000203 mixture Substances 0.000 claims description 69
- 229910052697 platinum Inorganic materials 0.000 claims description 44
- 239000011148 porous material Substances 0.000 claims description 43
- 239000007789 gas Substances 0.000 claims description 42
- 229910052751 metal Inorganic materials 0.000 claims description 32
- 239000002184 metal Substances 0.000 claims description 32
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 27
- 239000010949 copper Substances 0.000 claims description 23
- 239000010457 zeolite Substances 0.000 claims description 21
- 229910000323 aluminium silicate Inorganic materials 0.000 claims description 19
- 239000010953 base metal Substances 0.000 claims description 19
- 229910021536 Zeolite Inorganic materials 0.000 claims description 17
- 229910052802 copper Inorganic materials 0.000 claims description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 15
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 15
- 230000003197 catalytic effect Effects 0.000 claims description 15
- 239000011248 coating agent Substances 0.000 claims description 15
- 238000000576 coating method Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 claims description 13
- 229910052742 iron Inorganic materials 0.000 claims description 11
- 229910052720 vanadium Inorganic materials 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 239000011572 manganese Substances 0.000 claims description 9
- 239000000377 silicon dioxide Substances 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 8
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 229910004625 Ce—Zr Inorganic materials 0.000 claims description 6
- 239000000969 carrier Substances 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 239000011651 chromium Substances 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims description 6
- 150000004706 metal oxides Chemical class 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 6
- 229910052721 tungsten Inorganic materials 0.000 claims description 6
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 5
- 239000010955 niobium Substances 0.000 claims description 5
- 230000003647 oxidation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 231100000614 poison Toxicity 0.000 claims description 5
- 229910052684 Cerium Inorganic materials 0.000 claims description 4
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052748 manganese Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000002574 poison Substances 0.000 claims description 4
- 239000004071 soot Substances 0.000 claims description 4
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 4
- 239000010937 tungsten Substances 0.000 claims description 4
- GHOKWGTUZJEAQD-ZETCQYMHSA-N (D)-(+)-Pantothenic acid Chemical compound OCC(C)(C)[C@@H](O)C(=O)NCCC(O)=O GHOKWGTUZJEAQD-ZETCQYMHSA-N 0.000 claims description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims description 3
- 229910052804 chromium Inorganic materials 0.000 claims description 3
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- 230000000607 poisoning effect Effects 0.000 claims 2
- 230000020169 heat generation Effects 0.000 claims 1
- 231100000572 poisoning Toxicity 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 32
- 239000000758 substrate Substances 0.000 description 19
- 239000000463 material Substances 0.000 description 11
- 238000010304 firing Methods 0.000 description 7
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- 238000009472 formulation Methods 0.000 description 6
- 229910002089 NOx Inorganic materials 0.000 description 5
- 239000010931 gold Substances 0.000 description 5
- -1 silicalite Chemical compound 0.000 description 5
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052878 cordierite Inorganic materials 0.000 description 4
- 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 4
- 239000010948 rhodium Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 2
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910000431 copper oxide Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 description 2
- 229910052707 ruthenium Inorganic materials 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-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
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- BTQABFIACHLNHX-UHFFFAOYSA-M C(C)(=O)[O-].C(C)(=O)[Cu+] Chemical compound C(C)(=O)[O-].C(C)(=O)[Cu+] BTQABFIACHLNHX-UHFFFAOYSA-M 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 1
- 239000005750 Copper hydroxide Substances 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910006404 SnO 2 Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- HEHRHMRHPUNLIR-UHFFFAOYSA-N aluminum;hydroxy-[hydroxy(oxo)silyl]oxy-oxosilane;lithium Chemical compound [Li].[Al].O[Si](=O)O[Si](O)=O.O[Si](=O)O[Si](O)=O HEHRHMRHPUNLIR-UHFFFAOYSA-N 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 239000012298 atmosphere Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- XKUTVNLXHINPAP-UHFFFAOYSA-N azane platinum Chemical compound N.[Pt] XKUTVNLXHINPAP-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
- 239000011230 binding agent Substances 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 229910001956 copper hydroxide Inorganic materials 0.000 description 1
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 description 1
- 230000009849 deactivation Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000012013 faujasite Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 238000010438 heat treatment 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
- 239000007788 liquid Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 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
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical group [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 1
- 229960001730 nitrous oxide Drugs 0.000 description 1
- 235000013842 nitrous oxide Nutrition 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 229910052670 petalite Inorganic materials 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- 239000011819 refractory material Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 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
- 239000003440 toxic substance Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910052845 zircon Inorganic materials 0.000 description 1
Images
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
- B01D53/9404—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
-
- 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
- B01J23/06—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of zinc, cadmium or mercury
-
- 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
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
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Description
様々な実施態様では、本組成物は1種、2種又は3種のSCR触媒を含むことができる。本組成物中に常に存在している、第1のSCR触媒は、(1)低アンモニア貯蔵性を有する担体に担持されているPtを含むブレンド中、又は(2)触媒が二層中に存在しており、かつPtが下部層中に存在している場合、上部層中のどちらか一方に存在することができる。第1のSCR触媒は、好ましくはCu−SCR触媒又はFe−SCR触媒又は混合酸化物であり、より好ましくはCu−SCR触媒又は混合酸化物であり、最も好ましくはCu−SCR触媒である。Cu−SCR触媒は、銅及びモレキュラーシーブを含む。Fe−SCR触媒は、鉄及びモレキュラーシーブを含む。モレキュラーシーブは、以下にさらに記載されている。モレキュラーシーブは、アルミノケイ酸塩、アルミノリン酸塩(AlPO)、シリコ−アルミノリン酸塩(SAPO)、又はそれらの混合物とすることができる。銅又は鉄は、モレキュラーシーブのフレームワーク内部、及び/又はモレキュラーシーブ内のフレームワーク外の(交換可能な)部位中に位置することができる。
バナジウムを含有する押出成形されたSCR触媒は、低アンモニア貯蔵性を有する担体に担持された白金とCu−CHAとのブレンドを含むウオッシュコートを備えた出口側からコーティングされている。
Fe−ゼオライトを含有する押出成形されたSCR触媒は、低アンモニア貯蔵性を有する担体に担持された白金とCu−CHAとのブレンドを含む、ウオッシュコートを備えた出口側からコーティングされている。
バナジウムを含有する押出成形されたSCR触媒は、低アンモニア貯蔵性を有する担体に担持された白金を含むウオッシュコートを備えた出口側からコーティングされて、下部層を形成している。Cu−CHAを含む第2のウオッシュコートは下部層の上に置かれて、上部層を形成している。
Fe−ゼオライトを含有する押出成形されたSCR触媒は、低アンモニア貯蔵性を有する担体に担持された白金を含むウオッシュコートを備えた出口側からコーティングされて、下部層を形成している。Cu−CHAを含む第2のウオッシュコートは下部層の上に置かれて、上部層を形成している。
SCRFフィルターは、低アンモニア貯蔵性を有する担体に担持された白金を含むウオッシュコートを有するフィルターの出口面にコーティングされて、下部層を形成する。Cu−CHAを含む第2のウオッシュコートは下部層の上に置かれて、上部層を形成している。
SCRFフィルターは、低アンモニア貯蔵性を有する担体に担持された白金とCu−CHAとのブレンドを含むウオッシュコートを有するフィルターの出口面にコーティングされている。
Claims (33)
- (a)入口、出口、及びエンジンの作動中に排気ガスが流れる複数のチャネルを有する押出成形担体、及び(b)担体上の単層コーティング又は二層コーティングを含む、SCRによるNO X 除去及び窒素への選択的アンモニア変換のための触媒物品であって、単層コーティングが、シリカ質担体に担持されている白金と第1のSCR触媒とのブレンドを含み、二層コーティングが下部層及び上部層を含み、下部層が、上部層と押出成形担体との間に位置しており、下部層が、シリカ質担体に担持されている白金と第1のSCR触媒とのブレンドを含み、上部層が第2のSCR触媒を含み、かつ、押出成形担体が第3のSCR触媒を含む、触媒物品。
- シリカ質担体が、シリカ、又は(a)少なくとも100、(b)少なくとも200、(c)少なくとも250、少なくとも300、(d)少なくとも400、(e)少なくとも500、(f)少なくとも750及び(g)少なくとも1000のうちの少なくとも1つのシリカ対アルミナ比を有するゼオライトを含む、請求項1に記載の触媒物品。
- シリカ質担体が、BEA、CDO、CON、FAU、MEL、MFI又はMWWを含む、請求項1に記載の触媒物品。
- 第1のSCR触媒の量とシリカ質担体に担持されている白金の量との比が、これらの構成成分の重量に基づいて、(a)0:1から300:1、(b)3:1から300:1、(c)7:1から100:1及び(d)10:1から50:1(両端を含む)のうちの少なくとも1つの範囲にある、請求項1に記載の触媒物品。
- 第1のSCR触媒が、銅及び小細孔モレキュラーシーブを含むCu−SCR触媒、鉄及び小細孔モレキュラーシーブを含むFe−SCR触媒、又は混合酸化物である、請求項1に記載の触媒物品。
- 小細孔モレキュラーシーブが、アルミノケイ酸塩、アルミノリン酸塩(AlPO)、シリコ−アルミノリン酸塩(SAPO)、又はそれらの混合物である、請求項5に記載の触媒物品。
- 小細孔モレキュラーシーブが、ACO、AEI、AEN、AFN、AFT、AFX、ANA、APC、APD、ATT、CDO、CHA、DDR、DFT、EAB、EDI、EPI、ERI、GIS、GOO、IHW、ITE、ITW、LEV、KFI、MER、MON、NSI、OWE、PAU、PHI、RHO、RTH、SAT、SAV、SIV、THO、TSC、UEI、UFI、VNI、YUG、及びZON、並びにそれらの混合物及び/又は連晶からなるフレームワークタイプの群から選択される、請求項5に記載の触媒物品。
- 小細孔モレキュラーシーブが、CHA、LEV、AEI、AFX、ERI、SFW、KFI、DDR及びITEからなるフレームワークタイプの群から選択される、請求項5に記載の触媒物品。
- 白金が、ブレンド中の白金の担体の重量+白金の重量+第1のSCR触媒の重量に対して、(a)0.01−0.3重量%、(b)0.03−0.2重量%、(c)0.05−0.17重量%、及び(d)0.07−0.15重量%(両端を含む)の少なくとも1つで存在する、請求項1に記載の触媒物品。
- 第2のSCR触媒及び第3のSCR触媒が、互いに独立して、卑金属、卑金属の酸化物、モレキュラーシーブ、金属交換されているモレキュラーシーブ又はそれらの混合物である、請求項1に記載の触媒物品。
- 卑金属が、バナジウム(V)、モリブデン(Mo)、タングステン(W)、クロム(Cr)、セリウム(Ce)、マンガン(Mn)、鉄(Fe)、コバルト(Co)、ニッケル(Ni)、及び銅(Cu)、並びにそれらの混合物からなる群から選択される、請求項10に記載の触媒物品。
- 少なくとも1つの卑金属プロモーターをさらに含む、請求項10に記載の触媒物品。
- モレキュラーシーブ又は金属交換されているモレキュラーシーブが、小細孔、中細孔、大細孔又はそれらの混合物である、請求項10に記載の触媒物品。
- 第2及び/又は第3のSCR触媒が、アルミノケイ酸塩モレキュラーシーブ、金属置換アルミノケイ酸塩モレキュラーシーブ、アルミノリン酸塩(AlPO)モレキュラーシーブ、金属置換アルミノリン酸塩(MeAlPO)モレキュラーシーブ、シリコ−アルミノリン酸塩(SAPO)モレキュラーシーブ、及び金属置換シリコ−アルミノリン酸塩(MeAPSO)モレキュラーシーブ、並びにそれらの混合物からなる群から選択される、小細孔モレキュラーシーブを含む、請求項10に記載の触媒物品。
- 第2及び/又は第3のSCR触媒が、ACO、AEI、AEN、AFN、AFT、AFX、ANA、APC、APD、ATT、CDO、CHA、DDR、DFT、EAB、EDI、EPI、ERI、GIS、GOO、IHW、ITE、ITW、LEV、KFI、MER、MON、NSI、OWE、PAU、PHI、RHO、RTH、SAT、SAV、SIV、THO、TSC、UEI、UFI、VNI、YUG、及びZON、並びにそれらの混合物及び/又は連晶からなるフレームワークタイプの群から選択される、小細孔モレキュラーシーブを含む、請求項14に記載の触媒物品。
- 第2及び/又は第3のSCR触媒が、CHA、LEV、AEI、AFX、ERI、SFW、KFI、DDR及びITEからなるフレームワークタイプの群から選択される、小細孔モレキュラーシーブを含む、請求項14に記載の触媒物品。
- 第2及び/又は第3のSCR触媒が、AEL、AFO、AHT、BOF、BOZ、CGF、CGS、CHI、DAC、EUO、FER、HEU、IMF、ITH、ITR、JRY、JSR、JST、LAU、LOV、MEL、MFI、MFS、MRE、MTT、MVY、MWW、NAB、NAT、NES、OBW、PAR、PCR、PON、PUN、RRO、RSN、SFF、SFG、STF、STI、STT、STW、SVR、SZR、TER、TON、TUN、UOS、VSV、WEI、及びWEN、並びにそれらの混合物及び/又は連晶からなるフレームワークタイプの群から選択される、中細孔モレキュラーシーブを含む、請求項14に記載の触媒物品。
- 第2及び/又は第3のSCR触媒が、AFI、AFR、AFS、AFY、ASV、ATO、ATS、BEA、BEC、BOG、BPH、BSV、CAN、CON、CZP、DFO、EMT、EON、EZT、FAU、GME、GON、IFR、ISV、ITG、IWR、IWS、IWV、IWW、JSR、LTF、LTL、MAZ、MEI、MOR、MOZ、MSE、MTW、NPO、OFF、OKO、OSI、RON、RWY、SAF、SAO、SBE、SBS、SBT、SEW、SFE、SFO、SFS、SFV、SOF、SOS、STO、SSF、SSY、USI、UWY、及びVET、並びにそれらの混合物及び/又は連晶からなるフレームワークタイプの群から選択される、大細孔モレキュラーシーブを含む、請求項14に記載の触媒物品。
- 第3のSCR触媒が、バナジウム、Feゼオライト、Cuゼオライト、又はFe、W若しくはNbがドープされているCe−Zrをベースとする触媒を含む、請求項1に記載の触媒物品。
- 白金が、触媒中に存在している一又は複数の白金を被毒し得る物質からの被毒作用から保護されている、請求項1に記載の触媒物品。
- 白金を被毒し得る物質がバナジウムである、請求項20に記載の触媒物品。
- 請求項1に記載の触媒物品及び排気ガス中でNH3を形成する手段を備える排気システム。
- ディーゼル酸化触媒(DOC)、ディーゼル発熱触媒(DEC)、フィルター担持選択的触媒還元(SCRF)、又は触媒化スートフィルター(CSF)からなる群から選択される第2の触媒をさらに備え、第2の触媒が請求項1に記載の触媒物品の下流に位置している、請求項22に記載の排気システム。
- SCR触媒、ディーゼル酸化触媒(DOC)、ディーゼル発熱触媒(DEC)、NOxアドソーバー触媒(NAC)(リーンNOxトラップ(LNT)、NAC、受動型NOxアドソーバー(PNA)など)、触媒化スートフィルター(CSF)、フィルター担持選択的触媒還元(SCRF)、又はコールドスタート概念(CSC)触媒からなる群から選択される、第2の触媒をさらに備え、第2の触媒が、請求項1に記載の触媒物品の上流に位置している、請求項22に記載の排気システム。
- 請求項1に記載の触媒物品、SCR触媒及びDOC触媒を備える排気システムであって、SCR触媒が請求項1に記載の触媒物品とDOC触媒との間に位置している、排気システム。
- SCR触媒の前に白金族金属を備え、白金族金属の量が、発熱を発生させるのに十分である、請求項22に記載の排気システム。
- 請求項1に記載の触媒物品の下流に位置している、プロモートされたCe−Zr又はプロモートされたMnO2をさらに含む、請求項26に記載の排気システム。
- 請求項22に記載の排気システムを備えるエンジン。
- 車両におけるエンジン、定置型エンジン、発電所におけるエンジン、又はガスタービンである、請求項28に記載のエンジン。
- 請求項22に記載の排気システムを備える車両。
- 自動車、軽トラック、大型トラック又はボートである、請求項30に記載の車両。
- 約250℃から約300℃の温度での排気ガス中のアンモニアからのN2収率を改善する方法であって、アンモニアを含む排気ガスを請求項1に記載の触媒物品に接触させることを含む、方法。
- 排気ガス中におけるNH3からのN2O形成を低減する方法であって、アンモニアを含む排気ガスを請求項1に記載の触媒物品に接触させることを含む、方法。
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PCT/US2016/037861 WO2016205506A1 (en) | 2015-06-18 | 2016-06-16 | Single or dual layer ammonia slip catalyst |
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GB2542231A (en) | 2017-03-15 |
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DE102016111151A1 (de) | 2016-12-22 |
CN107847918A (zh) | 2018-03-27 |
US20160367938A1 (en) | 2016-12-22 |
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JP2018526193A (ja) | 2018-09-13 |
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