JP2010519020A - アンモニア遮断効果を有する、触媒により活性化されたディーゼル粒子フィルター - Google Patents
アンモニア遮断効果を有する、触媒により活性化されたディーゼル粒子フィルター Download PDFInfo
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- JP2010519020A JP2010519020A JP2009550225A JP2009550225A JP2010519020A JP 2010519020 A JP2010519020 A JP 2010519020A JP 2009550225 A JP2009550225 A JP 2009550225A JP 2009550225 A JP2009550225 A JP 2009550225A JP 2010519020 A JP2010519020 A JP 2010519020A
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- Prior art keywords
- catalyst
- diesel particulate
- exhaust gas
- particulate filter
- coating
- 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.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 170
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 82
- 239000003054 catalyst Substances 0.000 title claims description 148
- 230000000903 blocking effect Effects 0.000 title abstract description 16
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 115
- 238000000576 coating method Methods 0.000 claims abstract description 105
- 239000007789 gas Substances 0.000 claims abstract description 103
- 239000011248 coating agent Substances 0.000 claims abstract description 102
- 239000002245 particle Substances 0.000 claims abstract description 55
- 230000003647 oxidation Effects 0.000 claims abstract description 52
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 52
- 238000006243 chemical reaction Methods 0.000 claims abstract description 38
- 238000000746 purification Methods 0.000 claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims description 30
- 238000003860 storage Methods 0.000 claims description 24
- 239000010457 zeolite Substances 0.000 claims description 17
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 15
- 229910021536 Zeolite Inorganic materials 0.000 claims description 14
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 239000000919 ceramic Substances 0.000 claims description 13
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 12
- 230000003197 catalytic effect Effects 0.000 claims description 9
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 6
- 239000011232 storage material Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 5
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims description 5
- 229910001928 zirconium oxide Inorganic materials 0.000 claims description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 4
- -1 hydrogen cations Chemical class 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
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 230000010718 Oxidation Activity Effects 0.000 claims description 3
- 230000004913 activation Effects 0.000 claims description 3
- 229910000510 noble metal Inorganic materials 0.000 claims description 3
- 229910052763 palladium Inorganic materials 0.000 claims description 3
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 3
- 229910052723 transition metal Inorganic materials 0.000 claims description 3
- 239000012013 faujasite Substances 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000006262 metallic foam Substances 0.000 claims description 2
- 229910052680 mordenite Inorganic materials 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 35
- 238000000034 method Methods 0.000 description 18
- 229910052757 nitrogen Inorganic materials 0.000 description 17
- 239000006229 carbon black Substances 0.000 description 8
- 239000003638 chemical reducing agent Substances 0.000 description 7
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 7
- 230000002378 acidificating effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 150000002430 hydrocarbons Chemical class 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- 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 2
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- MRELNEQAGSRDBK-UHFFFAOYSA-N lanthanum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[La+3].[La+3] MRELNEQAGSRDBK-UHFFFAOYSA-N 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 235000013842 nitrous oxide Nutrition 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229910002089 NOx Inorganic materials 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
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 208000028659 discharge Diseases 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 239000002638 heterogeneous catalyst Substances 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 229910000476 molybdenum oxide Inorganic materials 0.000 description 1
- 229960001730 nitrous oxide Drugs 0.000 description 1
- QGLKJKCYBOYXKC-UHFFFAOYSA-N nonaoxidotritungsten Chemical compound O=[W]1(=O)O[W](=O)(=O)O[W](=O)(=O)O1 QGLKJKCYBOYXKC-UHFFFAOYSA-N 0.000 description 1
- 230000001473 noxious effect Effects 0.000 description 1
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000009257 reactivity Effects 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
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 229910001930 tungsten oxide Inorganic materials 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 229910001935 vanadium oxide Inorganic materials 0.000 description 1
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Classifications
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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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- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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- F01N3/0814—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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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- 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
- B01D53/9463—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 one brick
- B01D53/9468—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 one brick in different layers
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- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
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- B01J29/42—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the pentasil type, e.g. types ZSM-5, ZSM-8 or ZSM-11, as exemplified by patent documents US3702886, GB1334243 and US3709979, respectively containing iron group metals, noble metals or copper
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- F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
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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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Abstract
Description
1)排ガスからの窒素酸化物およびアンモニアは、SCR活性層(1)に吸着され、選択的接触反応で水および窒素に反応され、これら水および窒素は、反応終結後に脱着される。この場合、アンモニアは、化学量論的過剰量で存在し、即ち過剰に存在する。
2)過剰のアンモニアは、SCR活性層(1)内へ拡散される。アンモニアは、そこで部分的に吸蔵される。
3)吸蔵されなかったアンモニアは、SCR活性層(1)を通過して酸化活性被覆(2)に到達する。この場合、窒素および窒素酸化物が生じる。生じた窒素は、前記SCR活性層(1)を通過して変化せずに拡散し、雰囲気内へ到達する。
4)酸化活性層(2)中で形成された窒素酸化物がこの装置を離れる前に、この窒素酸化物は、再びSCR活性被覆(1)を通過する。ここで、この窒素酸化物は、予め吸蔵されたアンモニアNH3 吸蔵とSCR反応で反応され、N2に変わる。
a)構造部材の停滞圧力の最少化が証明され、
b)触媒被覆されたディーゼル粒子フィルターにとって有利な性質、例えば減少したカーボンブラック引火温度の際の粒子燃焼、改善されたパッシブな再生挙動ならびにCO排出およびHC排出の漏出の抑制がそのまま保持されることが保証される。
CN2=1/2・(CNH3,入口 − CNH3,出口 − 2・CN2O − CNO − CNO2)
こうして得られた窒素濃度および計量供給されたアンモニアの濃度から、窒素に対する選択性は、次のように算出される:
炭化珪素からなるウォールフロー型フィルター基材に、ドイツ連邦共和国特許出願公開第102004040548号明細書A1中に記載された作業法により壁中に導入された、従来の酸化活性被覆を備えた。
完成したディーゼル粒子フィルターから、2.54cmの直径を有する、3つの穿孔コアを取り出した。この穿孔コア[#0]について、モデルのガス装置中で特性を示すアンモニア酸化挙動を上記方法により試験した。
比較例からのディーゼル粒子フィルターから取り出された第2の穿孔コア上に、流入流側で、主に鉄と交換されたゼオライトを含有する、SCR反応で活性の被覆を施こした。被覆された帯域の長さは、2.54cm、即ち全構成部材の長さの33%であった。フィルター基材の体積に対してSCR活性材料50g/lを施こした。
比較例からのディーゼル粒子フィルターから取り出された第3の穿孔コア上に、流入流側で、主に銅と交換されたゼオライトを含有する、SCR反応で活性の被覆を施こした。被覆された帯域の長さは、2.54cm、即ち全構成部材の長さの33%であった。フィルター基材の体積に対してSCR活性材料50g/lを施こした。
Claims (20)
- フィルター体および酸化活性の触媒被覆ならびにさらにアンモニア吸蔵材料が含有されている、SCR反応で触媒活性の被覆を含む、触媒活性化されたディーゼル粒子フィルターにおいて、
層の配置が維持され、したがって浄化すべき排ガスが最初にSCR反応で触媒活性の被覆を通過し、その後に酸化活性の触媒被覆を通過することを特徴とする、触媒活性化されたディーゼル粒子フィルター。 - SCR反応で触媒活性の被覆のアンモニア吸蔵能力は、触媒材料1g当たり少なくとも20mlである、請求項1記載の触媒活性化されたディーゼル粒子フィルター。
- SCR反応で触媒活性の被覆は、水素カチオンまたは遷移金属カチオンと交換された1つ以上のゼオライトを含有する、請求項2記載の触媒活性化されたディーゼル粒子フィルター。
- SCR反応で触媒活性の被覆は、鉄または銅、または鉄および銅と交換された1つ以上のゼオライトを含有する、請求項3記載の触媒活性化されたディーゼル粒子フィルター。
- SCR反応で触媒活性の被覆は、β型ゼオライトまたはY型ゼオライト、またはフォージャサイトまたはモルデナイト、またはZSM−5またはこれらの組合せを含有する、請求項3記載の触媒活性化されたディーゼル粒子フィルター。
- SCR反応で触媒活性の被覆は、貴金属を含有しない、請求項3記載の触媒活性化されたディーゼル粒子フィルター。
- 酸化活性の触媒被覆は、ゼオライトを含有しない、請求項1記載の触媒活性化されたディーゼル粒子フィルター。
- 酸化活性の触媒被覆は、大きな表面積の活性の酸化アルミニウム、酸化セリウム、酸化ジルコニウム、酸化チタン、酸化珪素およびこれらの混合物または混合酸化物からなる群から選択された担持材料上に白金またはパラジウム、またはこれらの混合物を含有する、請求項7記載の触媒活性化されたディーゼル粒子フィルター。
- フィルター体は、セラミック製ウォールフロー型フィルター基材、焼結金属フィルター体、またはセラミック製または金属製のフォーム構造体の群から選択されている、請求項1記載の触媒活性化されたディーゼル粒子フィルター。
- フィルター体は、セラミック製ウォールフロー型フィルター基材の群から選択され、40〜80%の多孔度および9〜30μmの平均細孔直径を有する開放気孔構造を備えた壁を有する、請求項9記載の触媒活性化されたディーゼル粒子フィルター。
- フィルター体は、酸化活性の触媒被覆のための担持体として役立ち、この場合この触媒被覆は、構造部材の全長を占めており、酸化活性の触媒被覆を備えたフィルター基材は、SCR反応で触媒活性の被覆のための担持体として役立つ、請求項1記載の触媒活性化されたディーゼル粒子フィルター。
- SCR反応で触媒活性の被覆は、構造部材の全長の5〜50%を占め、構造部材の流入流側に配置されている、請求項11記載の触媒活性化されたディーゼル粒子フィルター。
- 酸化活性の触媒被覆は、構造部材の全長に亘ってセラミック製ウォールフロー型フィルター基材の壁の細孔中に導入されており、均一にウォールフロー型フィルター基材のそれぞれの壁中に分布している、請求項10記載の触媒活性化されたディーゼル粒子フィルター。
- 酸化活性の触媒被覆は、セラミック製ウォールフロー型フィルター基材の壁中の細孔をそれぞれの壁の流入流側の表面まで充填しており、SCR反応で触媒活性の被覆は、この表面上に施こされている、請求項13記載の触媒活性化されたディーゼル粒子フィルター。
- SCR反応で触媒活性の被覆は、構造部材の全長の5〜50%を占め、構造部材の流入流側に配置されている、請求項14記載の触媒活性化されたディーゼル粒子フィルター。
- 酸化活性の触媒被覆は、セラミック製ウォールフロー型フィルター基材の壁中の細孔をそれぞれの壁の流出流側の表面まで充填しており、SCR反応で触媒活性の被覆は、同様に壁の細孔内に導入され、均一にそれぞれの壁中に分布しているが、しかし、細孔は、それぞれの壁の流入流側の表面にまで充填されている、請求項13記載の触媒活性化されたディーゼル粒子フィルター。
- 主にリーン運転する内燃機関の排ガスから窒素酸化物および粒子を除去するための排ガス浄化装置において、この排ガス浄化装置が窒素酸化物の除去に適した触媒および請求項1から16までのいずれか1項に記載の触媒活性化されたディーゼル粒子フィルターを有することを特徴とする、主にリーン運転する内燃機関の排ガスから窒素酸化物および粒子を除去するための排ガス浄化装置。
- 排ガス浄化装置は、触媒活性化されたディーゼル粒子フィルターの流入流側に、アンモニアまたはアンモニアに分解する化合物を計量供給するための装置およびSCR触媒を有する、請求項17記載の排ガス浄化装置。
- 主にリーン運転する内燃機関とアンモニアまたはアンモニアに分解する化合物を計量供給するための装置との間に、ディーゼル酸化触媒または三元触媒または窒素酸化物吸蔵触媒、またはこれらの組合せが配置されている、請求項18記載の排ガス浄化装置。
- 排ガス浄化装置は触媒活性化されたディーゼル粒子フィルターの流入流側に窒素酸化物吸蔵触媒を有する、請求項17記載の排ガス浄化装置。
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EP07003720A EP1961933B1 (de) | 2007-02-23 | 2007-02-23 | Katalytisch aktiviertes Dieselpartikelfilter mit Ammoniak-Sperrwirkung |
PCT/EP2008/000631 WO2008101585A1 (de) | 2007-02-23 | 2008-01-28 | Katalytisch aktiviertes dieselpartikelfilter mit ammoniak-sperrwirkung |
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CN101605968A (zh) | 2009-12-16 |
US8226896B2 (en) | 2012-07-24 |
EP1961933A1 (de) | 2008-08-27 |
BRPI0807632B1 (pt) | 2018-12-04 |
RU2009135272A (ru) | 2011-03-27 |
US20100058746A1 (en) | 2010-03-11 |
RU2449135C2 (ru) | 2012-04-27 |
WO2008101585A1 (de) | 2008-08-28 |
DE502007003465D1 (de) | 2010-05-27 |
EP1961933B1 (de) | 2010-04-14 |
ATE464458T1 (de) | 2010-04-15 |
CN101605968B (zh) | 2012-05-23 |
KR20090115736A (ko) | 2009-11-05 |
BRPI0807632A2 (pt) | 2014-06-03 |
KR101247550B1 (ko) | 2013-03-26 |
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