JP2014525826A - 触媒微粒子フィルター及び微粒子フィルターの製造方法 - Google Patents
触媒微粒子フィルター及び微粒子フィルターの製造方法 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 67
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000010419 fine particle Substances 0.000 title description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 52
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 25
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 3
- 239000001257 hydrogen Substances 0.000 claims abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 22
- 239000002245 particle Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- 238000005192 partition Methods 0.000 claims description 15
- 239000007789 gas Substances 0.000 claims description 13
- 229910052763 palladium Inorganic materials 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 10
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000003647 oxidation Effects 0.000 claims description 6
- 238000007254 oxidation reaction Methods 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229910052697 platinum Inorganic materials 0.000 claims description 5
- 229910052703 rhodium Inorganic materials 0.000 claims description 5
- 239000010948 rhodium Substances 0.000 claims description 5
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- ILRRQNADMUWWFW-UHFFFAOYSA-K aluminium phosphate Chemical compound O1[Al]2OP1(=O)O2 ILRRQNADMUWWFW-UHFFFAOYSA-K 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000010457 zeolite Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000010953 base metal Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000005342 ion exchange Methods 0.000 claims description 2
- 229910044991 metal oxide Inorganic materials 0.000 claims description 2
- 150000004706 metal oxides Chemical class 0.000 claims description 2
- 229910021536 Zeolite Inorganic materials 0.000 claims 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims 2
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 229930195733 hydrocarbon Natural products 0.000 abstract description 5
- 150000002430 hydrocarbons Chemical class 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000011148 porous material Substances 0.000 description 12
- 239000000725 suspension Substances 0.000 description 8
- 230000003197 catalytic effect Effects 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- -1 silica aluminum phosphates Chemical class 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
- 239000004071 soot Substances 0.000 description 2
- 229910000505 Al2TiO5 Inorganic materials 0.000 description 1
- 239000006057 Non-nutritive feed additive Substances 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910000420 cerium oxide Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method 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
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052863 mullite Inorganic materials 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000003960 organic solvent Substances 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
- 239000012466 permeate Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 239000004034 viscosity adjusting agent Substances 0.000 description 1
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Abstract
Description
(a)壁流フィルター本体に、ガス透過性多孔質隔壁によって隔てられた複数の長手入口流路及び出口流路を与え;
(b)窒素酸化物と一酸化炭素及び水素とを反応させてアンモニアにするのに活性のある第1触媒組成物、および、アンモニアと反応することにより窒素酸化物を窒素に選択的還元するのに活性のある第2触媒組成物を含む触媒ウォッシュコートを与え、ここで、該第1触媒組成物は、該多孔質隔壁の平均孔径よりも大きなモード粒径を有し、該第2触媒組成物は、該多孔質隔壁の平均孔径よりも小さなモード粒径を有するものとし;
(c)該触媒ウォッシュコートを該入口流路の入口端に導入することによって該フィルター本体を該ウォッシュコートで被覆し;そして
(d)該被覆フィルター本体を乾燥させ熱処理して触媒微粒子フィルターを得ること
を含む方法を提供する。
NOx+H2/CO=NH3+CO2+H2O
によってNOxをアンモニアにする反応に有用な触媒は、パラジウム、白金、パラジウムとロジウムとの混合物及びパラジウムと白金とロジウムとの混合物である。
NOx+NH3=N2+H2O。
第1触媒組成物の懸濁液を、第1工程で、フィルター壁の平均孔径よりも大きなモード粒径の酸化セリウム及びアルミナ粒子上に被着されたパラジウムおよびロジウムの粉末混合物から調製する。
Claims (6)
- 触媒壁流フィルターの製造方法であって、次の工程:
(a)壁流フィルター本体に、ガス透過性多孔質隔壁によって隔てられた複数の長手入口流路及び出口流路を与え;
(b)窒素酸化物と一酸化炭素及び水素とを反応させてアンモニアにするのに活性のある第1触媒組成物と、アンモニアと反応することにより窒素酸化物を窒素に選択的還元するのに活性のある第2触媒組成物とを含む触媒ウォッシュコートを与え、ここで、該第1触媒組成物は、該多孔質隔壁の平均粒径よりも大きいモード粒径を有し、該第2触媒組成物は、該多孔質隔壁の平均粒径よりも小さいモード粒径を有するものとし;
(c)該触媒ウォッシュコートを該入口流路の入口端に導入することによって該フィルター本体に該ウォッシュコートを被覆し;そして
(d)該被覆フィルター本体を乾燥させ熱処理して触媒微粒子フィルターを得ることを含む、前記製造方法。 - 前記窒素酸化物をアンモニアに転化させるのに活性な触媒がパラジウム、白金、パラジウムとロジウムとの混合物及びパラジウムと白金とロジウムとの混合物を含む、請求項1に記載の方法。
- 前記窒素酸化物をアンモニアに転化させるのに活性な触媒がパラジウムからなる、請求項1に記載の方法。
- 前記窒素酸化物の選択的還元に活性な触媒がゼオライト、シリカアルミニウムホスフェート、イオン交換ゼオライト、鉄及び/又は銅で活性の高められたシリカアルミニウムホスフェート、および1種以上の卑金属酸化物、のうちの少なくとも一つを含む、請求項1〜3のいずれか一つに記載の方法。
- 次の工程:
アンモニアの選択的酸化に活性な触媒組成物を含有する第2ウォッシュコートを与え;そして
出口流路の一部に出口端の領域で該第2ウォッシュコートを被覆すること
をさらに含む、請求項1〜4のいずれか一つに記載の方法。 - 請求項1〜5のいずれか一つに従って製造される触媒壁流フィルター。
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DKPA201100535 | 2011-07-13 | ||
DKPA201100535 | 2011-07-13 | ||
PCT/EP2012/061331 WO2013007468A1 (en) | 2011-07-13 | 2012-06-14 | Method for coating a catalysed particulate filter and a particulate filter |
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EP (1) | EP2731720A1 (ja) |
JP (1) | JP6395603B2 (ja) |
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CN (1) | CN103796756B (ja) |
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CA (1) | CA2837918A1 (ja) |
MX (1) | MX2014000498A (ja) |
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JP2019217500A (ja) * | 2013-03-15 | 2019-12-26 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Public Limited Company | 排気ガスを処理するための触媒 |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP3257571A1 (de) | 2016-06-13 | 2017-12-20 | Umicore AG & Co. KG | Partikelfilter mit integrierter nox-speicher- und h2s-sperrfunktion |
DE102018108346A1 (de) * | 2018-04-09 | 2019-10-10 | Umicore Ag & Co. Kg | Beschichteter Wandflussfilter |
JP7178432B2 (ja) * | 2021-01-18 | 2022-11-25 | 本田技研工業株式会社 | 排気浄化フィルタ |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05131118A (ja) * | 1991-04-22 | 1993-05-28 | Corning Inc | 触媒反応方法および装置 |
JP2003210943A (ja) * | 2002-01-28 | 2003-07-29 | Toyota Motor Corp | 内燃機関の排気浄化装置、および、該排気浄化装置のパティキュレートフィルタに触媒を担持させる触媒担持方法 |
JP2008510606A (ja) * | 2004-08-21 | 2008-04-10 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト | ウォールフロー型フィルタに被覆組成物を被覆するための方法 |
JP2008212799A (ja) * | 2007-03-01 | 2008-09-18 | Okayama Univ | 排ガス中の窒素酸化物を接触還元するための触媒と方法 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2059841C1 (ru) * | 1993-08-24 | 1996-05-10 | Малое предприятие "Технология" | Фильтр для очистки выхлопных газов двигателей внутреннего сгорания |
US5981427A (en) * | 1996-09-04 | 1999-11-09 | Engelhard Corporation | Catalyst composition |
US7332135B2 (en) * | 2002-10-22 | 2008-02-19 | Ford Global Technologies, Llc | Catalyst system for the reduction of NOx and NH3 emissions |
US6946013B2 (en) * | 2002-10-28 | 2005-09-20 | Geo2 Technologies, Inc. | Ceramic exhaust filter |
US7198764B2 (en) * | 2003-03-05 | 2007-04-03 | Delphi Technologies, Inc. | Gas treatment system and a method for using the same |
KR101141875B1 (ko) * | 2003-08-29 | 2012-05-08 | 다우 글로벌 테크놀로지스 엘엘씨 | 개선된 디젤 배기 필터 |
EP1961933B1 (de) * | 2007-02-23 | 2010-04-14 | Umicore AG & Co. KG | Katalytisch aktiviertes Dieselpartikelfilter mit Ammoniak-Sperrwirkung |
WO2008122023A1 (en) * | 2007-04-02 | 2008-10-09 | Geo2 Technologies, Inc | A selective catalytic reduction filter and method of using same |
EP2246534B1 (en) * | 2008-01-08 | 2013-10-16 | Honda Motor Co., Ltd. | Exhaust emission control device for internal combustion engine |
US20100101221A1 (en) * | 2008-10-28 | 2010-04-29 | Caterpillar Inc. | CATALYSTS, SYSTEMS, AND METHODS FOR REDUCING NOx IN AN EXHAUST GAS |
US8844274B2 (en) * | 2009-01-09 | 2014-09-30 | Ford Global Technologies, Llc | Compact diesel engine exhaust treatment system |
JP5531501B2 (ja) * | 2009-08-21 | 2014-06-25 | 三菱自動車工業株式会社 | 排ガス浄化装置 |
US8246922B2 (en) * | 2009-10-02 | 2012-08-21 | Basf Corporation | Four-way diesel catalysts and methods of use |
EP2558691B1 (de) * | 2010-04-14 | 2016-08-03 | Umicore AG & Co. KG | Reduktionskatalytisch beschichtetes dieselpartikelfilter mit verbesserten eigenschaften |
FR2964413B1 (fr) * | 2010-09-02 | 2016-07-01 | Peugeot Citroen Automobiles Sa | Filtre a particules a trois revetements catalytiques |
US9339844B2 (en) * | 2010-11-02 | 2016-05-17 | Haldor Topsoe A/S | Method for the preparation of a catalysed particulate filter and catalysed particulate filter |
-
2012
- 2012-06-14 BR BR112014000488A patent/BR112014000488A2/pt not_active Application Discontinuation
- 2012-06-14 RU RU2014104853A patent/RU2609005C2/ru not_active IP Right Cessation
- 2012-06-14 WO PCT/EP2012/061331 patent/WO2013007468A1/en active Application Filing
- 2012-06-14 CA CA2837918A patent/CA2837918A1/en not_active Abandoned
- 2012-06-14 CN CN201280034845.1A patent/CN103796756B/zh not_active Expired - Fee Related
- 2012-06-14 JP JP2014519479A patent/JP6395603B2/ja active Active
- 2012-06-14 KR KR1020137035014A patent/KR20140033465A/ko active Search and Examination
- 2012-06-14 MX MX2014000498A patent/MX2014000498A/es not_active Application Discontinuation
- 2012-06-14 EP EP12728485.9A patent/EP2731720A1/en not_active Withdrawn
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05131118A (ja) * | 1991-04-22 | 1993-05-28 | Corning Inc | 触媒反応方法および装置 |
JP2003210943A (ja) * | 2002-01-28 | 2003-07-29 | Toyota Motor Corp | 内燃機関の排気浄化装置、および、該排気浄化装置のパティキュレートフィルタに触媒を担持させる触媒担持方法 |
JP2008510606A (ja) * | 2004-08-21 | 2008-04-10 | ユミコア・アクチエンゲゼルシャフト・ウント・コムパニー・コマンディットゲゼルシャフト | ウォールフロー型フィルタに被覆組成物を被覆するための方法 |
JP2008212799A (ja) * | 2007-03-01 | 2008-09-18 | Okayama Univ | 排ガス中の窒素酸化物を接触還元するための触媒と方法 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019217500A (ja) * | 2013-03-15 | 2019-12-26 | ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Public Limited Company | 排気ガスを処理するための触媒 |
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JP6395603B2 (ja) | 2018-09-26 |
US20140134063A1 (en) | 2014-05-15 |
BR112014000488A2 (pt) | 2017-02-21 |
CN103796756B (zh) | 2016-11-16 |
WO2013007468A1 (en) | 2013-01-17 |
EP2731720A1 (en) | 2014-05-21 |
RU2014104853A (ru) | 2015-08-20 |
CN103796756A (zh) | 2014-05-14 |
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