JP5528426B2 - Scr触媒によるエンジン排気ガスの処理のための排気ガス浄化システム - Google Patents
Scr触媒によるエンジン排気ガスの処理のための排気ガス浄化システム Download PDFInfo
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- JP5528426B2 JP5528426B2 JP2011503356A JP2011503356A JP5528426B2 JP 5528426 B2 JP5528426 B2 JP 5528426B2 JP 2011503356 A JP2011503356 A JP 2011503356A JP 2011503356 A JP2011503356 A JP 2011503356A JP 5528426 B2 JP5528426 B2 JP 5528426B2
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- Prior art keywords
- exhaust gas
- ammonia
- scr catalyst
- compound
- catalyst
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- 239000003054 catalyst Substances 0.000 title claims abstract description 150
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 title description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 212
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 188
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 94
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 42
- 239000010457 zeolite Substances 0.000 claims abstract description 42
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 41
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 40
- 150000001875 compounds Chemical class 0.000 claims abstract description 33
- 239000010949 copper Substances 0.000 claims abstract description 22
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052802 copper Inorganic materials 0.000 claims abstract description 13
- -1 zeolite compound Chemical class 0.000 claims abstract description 11
- 238000002485 combustion reaction Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 92
- 238000006243 chemical reaction Methods 0.000 claims description 51
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical class O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 25
- 238000011144 upstream manufacturing Methods 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000000576 coating method Methods 0.000 claims description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 16
- 230000003647 oxidation Effects 0.000 claims description 16
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 229910052684 Cerium Inorganic materials 0.000 claims description 10
- RCFVMJKOEJFGTM-UHFFFAOYSA-N cerium zirconium Chemical compound [Zr].[Ce] RCFVMJKOEJFGTM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052726 zirconium Inorganic materials 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 8
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 claims description 7
- 229910001930 tungsten oxide Inorganic materials 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 6
- 150000003682 vanadium compounds Chemical class 0.000 claims description 6
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 4
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 4
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 3
- 229910001657 ferrierite group Inorganic materials 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims description 2
- 229910052680 mordenite Inorganic materials 0.000 claims description 2
- 239000004071 soot Substances 0.000 claims description 2
- 238000010531 catalytic reduction reaction Methods 0.000 abstract description 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 14
- 239000000203 mixture Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 8
- 239000000463 material Substances 0.000 description 8
- 229910052742 iron Inorganic materials 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 6
- 229910052760 oxygen Inorganic materials 0.000 description 6
- 230000009467 reduction Effects 0.000 description 6
- 238000006722 reduction reaction Methods 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 239000011148 porous material Substances 0.000 description 5
- 229910052720 vanadium Inorganic materials 0.000 description 5
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 239000000470 constituent Substances 0.000 description 4
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 4
- 238000011835 investigation Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- ZNOKGRXACCSDPY-UHFFFAOYSA-N tungsten trioxide Chemical compound O=[W](=O)=O ZNOKGRXACCSDPY-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 210000004027 cell Anatomy 0.000 description 3
- 239000000919 ceramic Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 238000009472 formulation Methods 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000004408 titanium dioxide Substances 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 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
- 230000008901 benefit Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 210000002421 cell wall Anatomy 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910052723 transition metal Inorganic materials 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- 150000003624 transition metals Chemical group 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UNPLRYRWJLTVAE-UHFFFAOYSA-N Cloperastine hydrochloride Chemical compound Cl.C1=CC(Cl)=CC=C1C(C=1C=CC=CC=1)OCCN1CCCCC1 UNPLRYRWJLTVAE-UHFFFAOYSA-N 0.000 description 1
- 229940126062 Compound A Drugs 0.000 description 1
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical class [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 1
- NLDMNSXOCDLTTB-UHFFFAOYSA-N Heterophylliin A Natural products O1C2COC(=O)C3=CC(O)=C(O)C(O)=C3C3=C(O)C(O)=C(O)C=C3C(=O)OC2C(OC(=O)C=2C=C(O)C(O)=C(O)C=2)C(O)C1OC(=O)C1=CC(O)=C(O)C(O)=C1 NLDMNSXOCDLTTB-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 230000010718 Oxidation Activity Effects 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- XHCLAFWTIXFWPH-UHFFFAOYSA-N [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[V+5].[V+5] XHCLAFWTIXFWPH-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-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
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 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 1
- WPQBNJRIWONKBL-UHFFFAOYSA-N cerium(3+);oxygen(2-);zirconium(4+) Chemical class [O-2].[Zr+4].[Ce+3] WPQBNJRIWONKBL-UHFFFAOYSA-N 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 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
- 238000009499 grossing Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000004615 ingredient Substances 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
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- QWDUNBOWGVRUCG-UHFFFAOYSA-N n-(4-chloro-2-nitrophenyl)acetamide Chemical compound CC(=O)NC1=CC=C(Cl)C=C1[N+]([O-])=O QWDUNBOWGVRUCG-UHFFFAOYSA-N 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
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000012041 precatalyst Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
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- 238000003860 storage Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- 229910001935 vanadium oxide Inorganic materials 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
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
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- 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
- B01D53/9459—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts
- B01D53/9477—Removing one or more of nitrogen oxides, carbon monoxide, or hydrocarbons by multiple successive catalytic functions; systems with more than one different function, e.g. zone coated catalysts with catalysts positioned on separate bricks, e.g. exhaust systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- B01J29/064—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof containing iron group metals, noble metals or copper
- B01J29/072—Iron group metals or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- 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
- B01J37/0246—Coatings comprising a zeolite
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- 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
- B01J37/0248—Coatings comprising impregnated particles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2510/00—Surface coverings
- F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
- F01N2510/068—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings
- F01N2510/0682—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having a discontinuous, uneven or partially overlapping coating of catalytic material, e.g. higher amount of material upstream than downstream or vice versa
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/18—Ammonia
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
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- Y02T10/12—Improving ICE efficiencies
Description
(a)排気系統に属さない供給源から、アンモニアもしくはアンモニアへ分解可能な化合物を、窒素酸化物および炭化水素を含有する排気ガス流中に添加する工程;
(b)窒素酸化物、炭化水素、およびアンモニアもしくはアンモニアへ分解可能な化合物を含有する排気ガス流を、300℃〜500℃の温度範囲において窒素酸化物とアンモニアとの均化反応に対して効果的に触媒作用を及ぼし、同時に排気ガス中に含有される炭化水素を少なくとも部分的に酸化する、第一の上流のSCR触媒に通す工程;および
(c)(b)から得られる排気ガスを、150℃〜400℃の温度範囲において窒素酸化物とアンモニアとの均化反応に対して効果的に触媒作用を及ぼし、同時に過剰なアンモニアを吸蔵する、第二の下流のSCR触媒に通す工程
を含む。
本発明による排気ガスシステムの基本的特徴の1つは、排気ガスの流れ方向に、2つの連続するSCR触媒を備えることであり、これによって、異なる温度範囲において特に効果的にSCR反応を触媒する。本発明による排気ガスシステムの好ましい実施形態において、当該2つの連続して接続されたSCR触媒は、同じ支持体上にコーティングとして配置され、結果として2つの触媒ゾーンを有する単一の触媒活性な構成成分を形成する。
UNOx[%]=1−{c出口(NOx)/c入口(NOx)}・100
この場合、c入口/出口(NOx)=c入/出(NO)+c入/出(NO2)+c入/出(N2O)...
第二の下流のSCR触媒のHC酸化挙動は、区分された構成成分では調査していないが、個々の触媒VK3については調査した。VK3の製造では、総質量に対して5質量%のCuを含有する銅交換されたβ−ゼオライト化合物を、従来の浸漬法により、不活性セラミックハニカム上のコーティングとして適用した。当該ハニカムは、0.04Lの容積、76.2mmの長さ、および1cm2あたり62個のセル数を有した。セルの壁厚は0.17mmであった。
Claims (16)
- 窒素酸化物および炭化水素を含有するディーゼルエンジン排気ガスを処理する方法であって、
(a)該排気系統に属さない供給源から、アンモニアまたはアンモニアへ分解可能な化合物を、窒素酸化物および炭化水素を含有する該排気ガス流に添加する工程;
(b)300℃〜500℃の温度範囲において窒素酸化物とアンモニアとの均化反応に対して効果的に触媒作用を及ぼし、同時に該排気ガス中に含有される該炭化水素を少なくとも部分的に酸化する、酸化タングステンWO 3 および均一なセリウム−ジルコニウム混合酸化物(Ce,Zr)O 2 を含有する第一の上流のSCR触媒に、窒素酸化物、炭化水素、およびアンモニアもしくはアンモニアへ分解可能な化合物を含有する該排気ガス流を通す工程;および
(c)150℃〜400℃の温度範囲において窒素酸化物とアンモニアとの均化反応に対して効果的に触媒作用を及ぼし、同時に過剰なアンモニアを吸蔵する、銅(Cu)交換されたゼオライト化合物を含有する第二の下流のSCR触媒に、(b)から得られる該排気ガスを通す工程を含む方法。 - 工程(a)においてアンモニアもしくはアンモニアへ分解可能な化合物を添加する前に、窒素酸化物および炭化水素を含有する前記排気ガス流が、窒素酸化物に含有されるNOの少なくとも一部をNO2へと酸化する酸化触媒に送られることを特徴とする、請求項1に記載の方法。
- 前記排気ガス流が、工程(b)において前記第一の上流のSCR触媒に送られる前に0.3〜0.7のNO2/NOx比を有するように、該排気ガスにおけるNO2/NOx比が変更されることを特徴とする、請求項2に記載の方法。
- 工程(a)において前記排気ガス流に添加されるべきアンモニアもしくはアンモニアへ分解可能な化合物の量が、該排気ガス流が工程(b)において前記第一の上流のSCR触媒に送られる前に0.8〜1.2のNH3/NOx比を有するように選択されることを特徴とする、請求項1に記載の方法。
- 前記排気ガス流が、工程(c)において前記第二の下流のSCR触媒へ送られた後、窒素へのアンモニアの酸化に対して選択的に触媒作用を及ぼす酸化触媒へ送られることを特徴とする、請求項4に記載の方法。
- 前記酸化触媒が、すす粒子−フィルタリング支持体上に配置されていることを特徴とする、請求項5に記載の方法。
- 内燃機関のリーン排気ガス中の窒素酸化物の含有量を低減するための排気ガス浄化装置であって、
(1)該排気系統に属さない供給源から、アンモニアもしくはアンモニアへ分解可能な化合物を、窒素酸化物を含有する該排気ガス流に供給するための装置、並びにアンモニアもしくはアンモニアへ分解可能な化合物のための該供給源;
(2)300℃〜500℃の温度範囲において窒素酸化物とアンモニアとの均化反応に対して効果的に触媒作用を及ぼし、かつバナジウム化合物もゼオライト化合物も含有しない、酸化タングステンWO 3 および均一なセリウム−ジルコニウム混合酸化物(Ce,Zr)O 2 を含有する第一のSCR触媒;および
(3)150℃〜400℃の温度範囲において窒素酸化物とアンモニアとの均化反応に対して効果的に触媒作用を及ぼし、かつ銅(Cu)交換されたゼオライト化合物を含有する第二のバナジウム不含のSCR触媒
を、この順序および組み合わせにおいて備える装置。 - 前記2つのSCR触媒のそれぞれが、不活性支持体上におけるコーティングの形態であることを特徴とする、請求項7に記載の排気ガス浄化装置。
- 前記第一のSCR触媒および前記第二のSCR触媒が、同じ支持体上にコーティングとして配置されていることを特徴とする、請求項7に記載の排気ガス浄化装置。
- 前記第一のSCR触媒が、前記支持体上の上流側に配置されたコーティングゾーンの形態であり、前記第二の下流のSCR触媒が、前記支持体上の下流側のコーティングゾーンを形成することを特徴とする、請求項9に記載の排気ガス浄化装置。
- 前記上流側に配置されたコーティングゾーンと前記下流側に配置されたコーティングゾーンとの長さの比が、0.1〜3であることを特徴とする、請求項10に記載の排気ガス浄化装置。
- 前記第一のSCR触媒における酸化タングステンWO3の含有量が、前記不活性支持体の質量を考慮せずに、該第一のSCR触媒の総量に対して5〜25質量%であることを特徴とする、請求項7に記載の排気ガス浄化装置。
- 前記第一のSCR触媒における均一なセリウム−ジルコニウム混合酸化物(Ce,Zr)O2の前記含有量が、前記不活性支持体の質量を考慮せずに、該第一のSCR触媒の総量に対して50〜95質量%であることを特徴とする、請求項7に記載の排気ガス浄化装置。
- 前記均一なセリウム−ジルコニウム混合酸化物(Ce,Zr)O2中の酸化セリウムCeO2と酸化ジルコニウムZrO2の質量比が0.43〜2.33であることを特徴とする、請求項13に記載の排気ガス浄化装置。
- 前記第二のSCR触媒が、銅(Cu)交換されたゼオライト化合物の総質量に対して2〜10質量%のCu含有量を有する該ゼオライト化合物を含有することを特徴とする、請求項7に記載の排気ガス浄化装置。
- 前記ゼオライト化合物が、ベータ−(β−)ゼオライト、Y−ゼオライト、ZSM−5、ZSM−20、フェリエライト、およびモルデナイトから成る群から選択されることを特徴とする、請求項14に記載の排気ガス浄化装置。
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EP08007163A EP2116293B1 (de) | 2008-04-11 | 2008-04-11 | Abgasreinigungssystem zur Behandlung von Motorenabgasen mittels SCR-Katalysator |
EPEP08007163 | 2008-04-11 | ||
PCT/EP2009/001997 WO2009124643A1 (de) | 2008-04-11 | 2009-03-18 | Abgasreinigungssystem zur behandlung von motorenabgasen mittels scr-katalysator |
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Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009141875A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | ハニカム構造体 |
WO2009141895A1 (ja) * | 2008-05-20 | 2009-11-26 | イビデン株式会社 | 排ガス浄化装置 |
EP2335810B1 (de) * | 2009-12-11 | 2012-08-01 | Umicore AG & Co. KG | Selektive katalytische Reduktion von Stickoxiden im Abgas von Dieselmotoren |
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 |
JP5715450B2 (ja) * | 2011-03-09 | 2015-05-07 | テイカ株式会社 | 窒素酸化物選択還元触媒とその製造方法 |
US8844267B2 (en) * | 2011-03-17 | 2014-09-30 | GM Global Technology Operations LLC | Method and system for controlling a nitrogen oxide (NOx) conversion efficiency monitor |
EP2590730B1 (en) * | 2011-05-31 | 2014-06-25 | Johnson Matthey Public Limited Company | Dual function catalytic filter |
WO2012168277A1 (de) | 2011-06-07 | 2012-12-13 | Umicore Ag & Co. Kg | Katalysator zur selektiven katalytischen reduktion von stickoxiden im abgas von dieselmotoren |
US8789356B2 (en) * | 2011-07-28 | 2014-07-29 | Johnson Matthey Public Limited Company | Zoned catalytic filters for treatment of exhaust gas |
GB2493987B (en) * | 2011-08-26 | 2014-03-19 | Jc Bamford Excavators Ltd | An engine system |
DE102011085952A1 (de) * | 2011-11-08 | 2013-05-08 | Robert Bosch Gmbh | SCR-Katalysatorsystem und Verfahren zu seinem Betrieb |
GB201200783D0 (en) * | 2011-12-12 | 2012-02-29 | Johnson Matthey Plc | Substrate monolith comprising SCR catalyst |
US9101877B2 (en) | 2012-02-13 | 2015-08-11 | Siemens Energy, Inc. | Selective catalytic reduction system and process for control of NOx emissions in a sulfur-containing gas stream |
JP2013241859A (ja) * | 2012-05-18 | 2013-12-05 | Isuzu Motors Ltd | 排気ガス浄化システム及び排気ガス浄化方法 |
EP2969195A1 (en) * | 2013-03-14 | 2016-01-20 | BASF Corporation | Selective catalytic reduction catalyst system |
US9021794B2 (en) * | 2013-03-15 | 2015-05-05 | Cummins Intellectual Property, Inc. | Decomposition chamber |
US8904765B2 (en) * | 2013-04-19 | 2014-12-09 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Internal combustion engine |
US9517457B2 (en) | 2013-10-30 | 2016-12-13 | Cummins Inc. | Aftertreatment systems with reduced N2O generation |
EP2875863A1 (de) * | 2013-11-25 | 2015-05-27 | Umicore AG & Co. KG | SCR-Katalysator |
US10029209B2 (en) | 2013-12-11 | 2018-07-24 | Cataler Corporation | Exhaust gas purification material |
US10335736B2 (en) | 2013-12-11 | 2019-07-02 | Cataler Corporation | Exhaust gas purification material |
CN105939775A (zh) * | 2013-12-30 | 2016-09-14 | 庄信万丰股份有限公司 | 使用经掺杂的二氧化铈的选择性催化还原方法 |
US9764313B2 (en) | 2014-06-18 | 2017-09-19 | Basf Corporation | Molecular sieve catalyst compositions, catalyst composites, systems, and methods |
US10850265B2 (en) | 2014-06-18 | 2020-12-01 | Basf Corporation | Molecular sieve catalyst compositions, catalytic composites, systems, and methods |
US9889437B2 (en) * | 2015-04-15 | 2018-02-13 | Basf Corporation | Isomorphously substituted catalyst |
RU2698817C2 (ru) * | 2014-08-15 | 2019-08-30 | Джонсон Мэтти Паблик Лимитед Компани | Зонированный катализатор для обработки отработавшего газа |
US10113462B2 (en) | 2015-04-24 | 2018-10-30 | Cummins Inc. | Advanced exhaust aftertreatment system architecture |
EP3281699A1 (de) | 2016-08-11 | 2018-02-14 | Umicore AG & Co. KG | Partikelfilter mit scr-aktiver beschichtung |
GB2555695A (en) * | 2016-08-25 | 2018-05-09 | Johnson Matthey Plc | Reduced sulfation impact on CU-SCRS |
EP3296009B1 (de) | 2016-09-20 | 2019-03-27 | Umicore AG & Co. KG | Partikelfilter mit scr-aktiver beschichtung |
GB201716063D0 (en) * | 2017-03-30 | 2017-11-15 | Johnson Matthey Plc | A catalyst for treating an exhaust gas, an exhaust system and a method |
DE102017006059A1 (de) * | 2017-06-27 | 2018-12-27 | Daimler Ag | Abgasanlage für einen Kraftwagen |
JP2019035360A (ja) * | 2017-08-14 | 2019-03-07 | いすゞ自動車株式会社 | 排気ガス浄化システム |
EP3498993A1 (de) * | 2017-12-15 | 2019-06-19 | Umicore Ag & Co. Kg | Kombination eines zeolithbasierten scr mit einem manganbasierten scr im bypass |
WO2020009713A1 (en) | 2018-07-06 | 2020-01-09 | Cummins Emission Solutions Inc. | Decomposition chamber for aftertreatment systems |
KR20210035853A (ko) * | 2018-07-24 | 2021-04-01 | 바스프 코포레이션 | 디젤 엔진의 배기가스 처리용 scr 촉매 |
US10808588B2 (en) * | 2019-01-31 | 2020-10-20 | Hyundai Motor Company | After treatment system and after treatment method for lean-burn engine |
CN115398085B (zh) | 2020-05-08 | 2023-07-14 | 康明斯排放处理公司 | 包括壳体的可配置后处理系统 |
Family Cites Families (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10020170C1 (de) | 2000-04-25 | 2001-09-06 | Emitec Emissionstechnologie | Verfahren zum Entfernen von Rußpartikeln aus einem Abgas und zugehöriges Auffangelement |
DE3906136C1 (ja) | 1989-02-28 | 1990-08-09 | Degussa Ag, 6000 Frankfurt, De | |
US4961917A (en) * | 1989-04-20 | 1990-10-09 | Engelhard Corporation | Method for reduction of nitrogen oxides with ammonia using promoted zeolite catalysts |
US5024981A (en) | 1989-04-20 | 1991-06-18 | Engelhard Corporation | Staged metal-promoted zeolite catalysts and method for catalytic reduction of nitrogen oxides using the same |
US6471924B1 (en) * | 1995-07-12 | 2002-10-29 | Engelhard Corporation | Method and apparatus for NOx abatement in lean gaseous streams |
JP3483687B2 (ja) * | 1995-11-29 | 2004-01-06 | 日野自動車株式会社 | 排ガス浄化装置 |
RU2108140C1 (ru) * | 1996-06-24 | 1998-04-10 | Александр Юрьевич Логинов | Способ очистки отработавших газов |
US6125629A (en) | 1998-11-13 | 2000-10-03 | Engelhard Corporation | Staged reductant injection for improved NOx reduction |
DE10054877A1 (de) * | 2000-11-06 | 2002-05-29 | Omg Ag & Co Kg | Abgasreinigungsanlage für die selektive katalytische Reduktion von Stickoxiden unter mageren Abgasbedingungen und Verfahren zur Abgasreinigung |
US6689709B1 (en) | 2000-11-15 | 2004-02-10 | Engelhard Corporation | Hydrothermally stable metal promoted zeolite beta for NOx reduction |
US6914026B2 (en) | 2001-09-07 | 2005-07-05 | Engelhard Corporation | Hydrothermally stable metal promoted zeolite beta for NOx reduction |
GB0220645D0 (en) * | 2002-09-05 | 2002-10-16 | Johnson Matthey Plc | Exhaust system for a lean burn ic engine |
DE10300298A1 (de) * | 2003-01-02 | 2004-07-15 | Daimlerchrysler Ag | Abgasnachbehandlungseinrichtung und -verfahren |
JP4236543B2 (ja) * | 2003-09-08 | 2009-03-11 | 本田技研工業株式会社 | 窒素酸化物の接触分解のための触媒と方法 |
EP2426329B1 (en) * | 2003-09-19 | 2013-05-01 | Nissan Diesel Motor Co., Ltd. | Exhaust gas purification device of engine |
EP1685891A4 (en) * | 2003-11-11 | 2009-03-11 | Honda Motor Co Ltd | METHOD FOR CATALYSIS REDUCTION OF NITROGEN OXIDE AND CORRESPONDING CATALYST |
US7438876B2 (en) * | 2003-12-02 | 2008-10-21 | Cichanowicz J Edward | Multi-stage heat absorbing reactor and process for SCR of NOx and for oxidation of elemental mercury |
JP4427356B2 (ja) * | 2004-02-27 | 2010-03-03 | 東京濾器株式会社 | 窒素酸化物浄化用触媒システム及び窒素酸化物浄化方法 |
JP2006057578A (ja) | 2004-08-23 | 2006-03-02 | Hino Motors Ltd | 排気浄化装置 |
US7481983B2 (en) | 2004-08-23 | 2009-01-27 | Basf Catalysts Llc | Zone coated catalyst to simultaneously reduce NOx and unreacted ammonia |
US7393511B2 (en) * | 2005-02-16 | 2008-07-01 | Basf Catalysts Llc | Ammonia oxidation catalyst for the coal fired utilities |
JP2007032472A (ja) * | 2005-07-28 | 2007-02-08 | Hitachi Ltd | 尿素水を用いた排気処理装置 |
US7685809B2 (en) * | 2005-10-03 | 2010-03-30 | Caterpillar Inc. | On-board ammonia generation and exhaust after treatment system using same |
US7624569B2 (en) * | 2005-10-03 | 2009-12-01 | Caterpillar Inc. | Engine system including multipe engines and method of operating same |
US8568678B2 (en) | 2006-07-08 | 2013-10-29 | Umicore Ag & Co. Kg | Structured SCR catalyst for the reduction of nitrogen oxides in the exhaust gas from lean-burn engines using ammonia as reducing agent |
DE102006031724B3 (de) * | 2006-07-08 | 2008-04-30 | Umicore Ag & Co. Kg | Strukturierter SCR-Katalysator zur Reduktion von Stickoxiden im Abgas von Magermotoren unter Verwendung von Ammoniak als Reduktionsmittel |
US8569199B2 (en) | 2006-10-23 | 2013-10-29 | Umicore Ag & Co. Kg | Vanadium-free catalyst for selective catalytic reduction and process for it's preparation |
JP2007239752A (ja) | 2007-03-30 | 2007-09-20 | Toyota Motor Corp | 内燃機関の排気浄化装置 |
US20100115930A1 (en) * | 2008-11-07 | 2010-05-13 | Gm Global Technology Operations, Inc. | Exhaust after treatment system |
-
2008
- 2008-04-11 AT AT08007163T patent/ATE460973T1/de active
- 2008-04-11 EP EP08007163A patent/EP2116293B1/de active Active
- 2008-04-11 DE DE502008000454T patent/DE502008000454D1/de active Active
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BRPI0911258A2 (pt) | 2015-10-06 |
CN101998878B (zh) | 2013-06-12 |
WO2009124643A1 (de) | 2009-10-15 |
ATE460973T1 (de) | 2010-04-15 |
JP2011518658A (ja) | 2011-06-30 |
US8863507B2 (en) | 2014-10-21 |
CN101998878A (zh) | 2011-03-30 |
US20110146237A1 (en) | 2011-06-23 |
KR101542754B1 (ko) | 2015-08-07 |
EP2116293B1 (de) | 2010-03-17 |
RU2010145470A (ru) | 2012-05-20 |
DE502008000454D1 (de) | 2010-04-29 |
KR20100134644A (ko) | 2010-12-23 |
RU2497577C2 (ru) | 2013-11-10 |
EP2116293A1 (de) | 2009-11-11 |
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