WO2009011236A1 - ＮＯｘ浄化触媒 - Google Patents

ＮＯｘ浄化触媒 Download PDF

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Publication number
WO2009011236A1
WO2009011236A1 PCT/JP2008/062186 JP2008062186W WO2009011236A1 WO 2009011236 A1 WO2009011236 A1 WO 2009011236A1 JP 2008062186 W JP2008062186 W JP 2008062186W WO 2009011236 A1 WO2009011236 A1 WO 2009011236A1
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WO
WIPO (PCT)
Prior art keywords
catalyst layer
nox
nox purifying
catalyst
purifying catalyst
Prior art date
Application number
PCT/JP2008/062186
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English (en)
French (fr)
Inventor
Naohiro Sato
Osami Yamamoto
Koichi Inaba
Original Assignee
Honda Motor Co., Ltd.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co., Ltd. filed Critical Honda Motor Co., Ltd.
Priority to EP08777901A priority Critical patent/EP2172268B1/en
Priority to AT08777901T priority patent/ATE536934T1/de
Priority to US12/669,309 priority patent/US8372366B2/en
Publication of WO2009011236A1 publication Critical patent/WO2009011236A1/ja

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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
    • 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
    • B01J29/70—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
    • B01J29/72—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65 containing iron group metals, noble metals or copper
    • B01J29/76—Iron group metals or copper
    • B01J29/7615—Zeolite Beta
    • 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
    • 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
    • B01D53/9459—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
    • 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
    • B01J37/0244—Coatings comprising several layers
    • 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
    • B01J37/0246—Coatings comprising a zeolite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/206—Ammonium compounds
    • B01D2251/2062—Ammonia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1021—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/206—Rare earth metals
    • B01D2255/2065—Cerium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20738—Iron
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/50—Zeolites
    • B01D2255/502—Beta zeolites
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/902—Multilayered catalyst
    • B01D2255/9022—Two layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/01—Engine exhaust gases
    • B01D2258/012—Diesel engines and lean burn gasoline engines
    • 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
    • B01D53/9422—Processes characterised by a specific catalyst for removing nitrogen oxides by NOx storage or reduction by cyclic switching between lean and rich exhaust gases (LNT, NSC, NSR)
    • 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
    • B01J2229/00—Aspects of molecular sieve catalysts not covered by B01J29/00
    • B01J2229/10—After treatment, characterised by the effect to be obtained
    • B01J2229/18—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself
    • B01J2229/186—After treatment, characterised by the effect to be obtained to introduce other elements into or onto the molecular sieve itself not in framework positions
    • 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
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/54—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • B01J23/56—Platinum group metals
    • B01J23/63—Platinum group metals with rare earths or actinides
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2510/00—Surface coverings
    • F01N2510/06—Surface coverings for exhaust purification, e.g. catalytic reaction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • 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
    • F01N2510/0684—Surface coverings for exhaust purification, e.g. catalytic reaction characterised by the distribution of the catalytic coatings having more than one coating layer, e.g. multi-layered coatings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

　ディーゼル車のような低温下の運転領域においても、ＮＯｘを十分な効率で除去できるＮＯｘ浄化触媒を提供する。 　このＮＯｘ浄化触媒は、排気ガスの空燃比をリーン／リッチ制御をすることにより、排気ガス中のＮＯｘを処理するための触媒であって、鉄元素を含むβゼオライトと酸化セリウム系材料とを含む第一触媒層と、貴金属と酸化セリウム系材料と耐熱性無機酸化物とを含む第二触媒層と、を少なくとも備え、担体上に第二触媒層及び第一触媒層が順次積層されており、第一触媒層が最上層となるように構成されている。
PCT/JP2008/062186 2007-07-17 2008-07-04 ＮＯｘ浄化触媒 WO2009011236A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP08777901A EP2172268B1 (en) 2007-07-17 2008-07-04 NOx PURIFYING CATALYST
AT08777901T ATE536934T1 (de) 2007-07-17 2008-07-04 Nox-reinigungskatalysator
US12/669,309 US8372366B2 (en) 2007-07-17 2008-07-04 NOx purifying catalyst

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007-185492 2007-07-17
JP2007185492A JP5122195B2 (ja) 2007-07-17 2007-07-17 ＮＯｘ浄化触媒

Publications (1)

Publication Number Publication Date
WO2009011236A1 true WO2009011236A1 (ja) 2009-01-22

Family

ID=40259574

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/062186 WO2009011236A1 (ja) 2007-07-17 2008-07-04 ＮＯｘ浄化触媒

Country Status (5)

Country Link
US (1) US8372366B2 (ja)
EP (1) EP2172268B1 (ja)
JP (1) JP5122195B2 (ja)
AT (1) ATE536934T1 (ja)
WO (1) WO2009011236A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103313787A (zh) * 2010-11-24 2013-09-18 巴斯夫公司 柴油氧化催化剂制品以及制备和使用方法
WO2015161627A1 (zh) * 2014-04-24 2015-10-29 同济大学 一种用于400℃～600℃烟气蜂窝脱硝催化剂及其制备方法

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Publication number Priority date Publication date Assignee Title
US10343117B2 (en) 2009-02-27 2019-07-09 Corning Incorporated Ceria-zirconia-zeolite catalyst body
KR101509684B1 (ko) 2009-12-03 2015-04-06 현대자동차 주식회사 질소산화물 정화촉매
KR101860741B1 (ko) 2010-09-15 2018-05-24 존슨 맛쎄이 퍼블릭 리미티드 컴파니 조합된 슬립 촉매와 탄화수소 발열 촉매
GB201021887D0 (en) * 2010-12-21 2011-02-02 Johnson Matthey Plc Oxidation catalyst for a lean burn internal combustion engine
WO2012132678A1 (ja) * 2011-03-31 2012-10-04 エヌ・イー ケムキャット株式会社 アンモニア酸化触媒、およびそれを用いた排気ガス浄化装置並びに排気ガス浄化方法
GB2492175B (en) 2011-06-21 2018-06-27 Johnson Matthey Plc Exhaust system for internal combustion engine comprising catalysed filter substrate
DE102011107692B3 (de) 2011-07-13 2013-01-03 Umicore Ag & Co. Kg Verfahren zur Reaktivierung von Abgasreinigungsanlagen von Dieselmotoren mit Niederdruck-AGR
KR101438953B1 (ko) * 2012-12-18 2014-09-11 현대자동차주식회사 저온에서의 NOx 흡장성능이 개선된 LNT촉매
JP6392024B2 (ja) * 2014-08-12 2018-09-19 日野自動車株式会社 排気浄化装置
RU2017113830A (ru) * 2014-09-22 2018-10-24 Трайбахер Индустри Аг Термически стабильные nh3-scr-каталитические композиции
WO2018151289A1 (ja) * 2017-02-20 2018-08-23 株式会社キャタラー 排ガス浄化用触媒
WO2023079264A1 (en) * 2021-11-02 2023-05-11 Johnson Matthey Public Limited Company Catalysts for gasoline exhaust gas treatments with improved ammonia emission control

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JPH06316416A (ja) 1993-02-10 1994-11-15 Rhone Poulenc Chim ジルコニウム及びセリウムの混合酸化物を基とする組成物の製造方法
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JP2600492B2 (ja) 1991-10-03 1997-04-16 トヨタ自動車株式会社 内燃機関の排気浄化装置
JPH05220403A (ja) * 1991-12-16 1993-08-31 Toyota Motor Corp 排気ガス浄化用触媒
JPH06111838A (ja) * 1992-09-30 1994-04-22 Toshiba Corp 改質器、改質システム、及び燃料電池システム
JPH06316416A (ja) 1993-02-10 1994-11-15 Rhone Poulenc Chim ジルコニウム及びセリウムの混合酸化物を基とする組成物の製造方法
WO1998026867A1 (fr) * 1996-12-16 1998-06-25 Asahi Kasei Kogyo Kabushiki Kaisha Support pour metal precieux
JPH11300211A (ja) * 1998-04-24 1999-11-02 Nissan Motor Co Ltd 排気ガス浄化用触媒及び排気ガス浄化方法
WO2005044426A1 (ja) * 2003-11-11 2005-05-19 Valtion Teknillinen Tutkimuskeskus 窒素酸化物を接触還元する方法をそのための触媒
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JP2005177570A (ja) * 2003-12-17 2005-07-07 Ne Chemcat Corp 高温特性に優れるｓｃｒ触媒
JP2006314989A (ja) * 2005-04-11 2006-11-24 Valtion Teknillinen Tutkimuskeskus 窒素酸化物を接触還元するための触媒及び触媒構造体
WO2007074599A1 (ja) * 2005-12-26 2007-07-05 N.E. Chemcat Corporation 脱硝触媒、ハニカム構造型脱硝触媒、及びそれを用いた脱硝方法
EP1889651A1 (en) 2006-07-31 2008-02-20 HONDA MOTOR CO., Ltd. NOx exhaust gas purifying catalyst
EP2048333A1 (en) 2006-07-31 2009-04-15 Honda Motor Co., Ltd METHOD FOR CONTROLLING NOx REDUCTION SYSTEM

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103313787A (zh) * 2010-11-24 2013-09-18 巴斯夫公司 柴油氧化催化剂制品以及制备和使用方法
WO2015161627A1 (zh) * 2014-04-24 2015-10-29 同济大学 一种用于400℃～600℃烟气蜂窝脱硝催化剂及其制备方法

Also Published As

Publication number Publication date
EP2172268A1 (en) 2010-04-07
ATE536934T1 (de) 2011-12-15
EP2172268B1 (en) 2011-12-14
US20100190634A1 (en) 2010-07-29
EP2172268A4 (en) 2010-08-04
JP2009022820A (ja) 2009-02-05
JP5122195B2 (ja) 2013-01-16
US8372366B2 (en) 2013-02-12

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