DE69918395D1 - Verfahren zur Absorption von Stickoxiden aus oxidierendem Abgas mittels Sol-Gel-hergestellter Metalloxide auf Aluminiumoxidbasis - Google Patents

Verfahren zur Absorption von Stickoxiden aus oxidierendem Abgas mittels Sol-Gel-hergestellter Metalloxide auf Aluminiumoxidbasis

Info

Publication number
DE69918395D1
DE69918395D1 DE69918395T DE69918395T DE69918395D1 DE 69918395 D1 DE69918395 D1 DE 69918395D1 DE 69918395 T DE69918395 T DE 69918395T DE 69918395 T DE69918395 T DE 69918395T DE 69918395 D1 DE69918395 D1 DE 69918395D1
Authority
DE
Germany
Prior art keywords
sol
gel
absorption
exhaust gas
aluminum oxide
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.)
Expired - Lifetime
Application number
DE69918395T
Other languages
English (en)
Other versions
DE69918395T2 (de
Inventor
Chaitanya Kumar Narula
Sabine Rita Nakouzi-Phillips
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ford Global Technologies LLC
Original Assignee
Ford Global Technologies LLC
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 Ford Global Technologies LLC filed Critical Ford Global Technologies LLC
Application granted granted Critical
Publication of DE69918395D1 publication Critical patent/DE69918395D1/de
Publication of DE69918395T2 publication Critical patent/DE69918395T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/036—Precipitation; Co-precipitation to form a gel or a cogel
    • 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
    • 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
    • B01J23/58—Platinum group metals with alkali- or alkaline earth metals
    • 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
    • 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
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • B01J37/033—Using Hydrolysis
    • 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
    • B01D2255/10—Noble metals or compounds thereof
    • B01D2255/102—Platinum group metals
    • B01D2255/1025—Rhodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/202—Alkali metals
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/204—Alkaline earth metals
    • 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
    • B01D2255/2063—Lanthanum
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Catalysts (AREA)
DE69918395T 1998-11-02 1999-10-28 Sol-Gel-hergestellte Metalloxide auf Aluminiumoxidbasis zur Absorption von Stickoxiden in oxidierendem Abgas Expired - Lifetime DE69918395T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/184,146 US6217837B1 (en) 1998-11-02 1998-11-02 Use of sol-gel processed alumina-based metal oxides for absorbing nitrogen oxides in oxidizing exhaust gas
US184146 1998-11-02

Publications (2)

Publication Number Publication Date
DE69918395D1 true DE69918395D1 (de) 2004-08-05
DE69918395T2 DE69918395T2 (de) 2005-06-02

Family

ID=22675751

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69918395T Expired - Lifetime DE69918395T2 (de) 1998-11-02 1999-10-28 Sol-Gel-hergestellte Metalloxide auf Aluminiumoxidbasis zur Absorption von Stickoxiden in oxidierendem Abgas

Country Status (3)

Country Link
US (1) US6217837B1 (de)
EP (1) EP0998970B1 (de)
DE (1) DE69918395T2 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6537511B1 (en) * 2000-08-21 2003-03-25 Ford Global Technologies, Inc. Modified platinum NOx trap for automotive emission reduction
EP1316354A1 (de) 2001-11-30 2003-06-04 OMG AG & Co. KG Katalysator zur Verminderung der Stickoxide im Abgas von Magermotoren
GB201220912D0 (en) 2012-11-21 2013-01-02 Johnson Matthey Plc Oxidation catalyst for treating the exhaust gas of a compression ignition engine
GB2514177A (en) 2013-05-17 2014-11-19 Johnson Matthey Plc Oxidation catalyst for a compression ignition engine
GB2518418A (en) 2013-09-20 2015-03-25 Johnson Matthey Plc Electrically heated catalyst for a compression ignition engine
GB201322842D0 (en) 2013-12-23 2014-02-12 Johnson Matthey Plc Exhaust system for a compression ingition engine comprising a water absorbent material
GB201401115D0 (en) 2014-01-23 2014-03-12 Johnson Matthey Plc Diesel oxidation catalyst and exhaust system
GB201405868D0 (en) 2014-04-01 2014-05-14 Johnson Matthey Plc Diesel oxidation catalyst with NOx adsorber activity
KR20170020337A (ko) * 2014-06-19 2017-02-22 오츠카 가가쿠 가부시키가이샤 배기 가스 정화 촉매, 배기 가스 정화 장치 및 필터, 및 해당 촉매의 제조 방법
GB2540350A (en) 2015-07-09 2017-01-18 Johnson Matthey Plc Nitrogen oxides (NOx) storage catalyst
GB201517580D0 (en) 2015-10-06 2015-11-18 Johnson Matthey Plc Exhaust system comprising a passive nox adsorber
CN108025256B (zh) 2015-10-14 2021-11-30 庄信万丰股份有限公司 用于柴油机废气的氧化催化剂
GB201614705D0 (en) 2016-08-31 2016-10-12 Johnson Matthey Plc Oxidation catalyst for a diesel engine exhaust
GB201614677D0 (en) 2016-08-30 2016-10-12 Johnson Matthey Plc Oxidation catalyst for a diesel engine exhaust
GB201616269D0 (en) 2016-09-26 2016-11-09 Johnson Matthey Public Limited Company Oxidation catalyst for a diesel engine exhaust
JP2022540686A (ja) 2019-08-08 2022-09-16 ジョンソン、マッセイ、パブリック、リミテッド、カンパニー 車両用圧縮点火エンジンと電気加熱可能要素を備える排ガス制御装置とを備えるシステム
WO2021198680A1 (en) 2020-03-30 2021-10-07 Johnson Matthey Public Limited Company Layered zone-coated diesel oxidation catalysts for improved co/hc conversion and no oxidation

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210062A (en) 1991-08-26 1993-05-11 Ford Motor Company Aluminum oxide catalyst supports from alumina sols
JP3250824B2 (ja) * 1991-09-13 2002-01-28 マツダ株式会社 ＮＯｘ浄化方法
US6010673A (en) * 1992-09-21 2000-01-04 Toyota Jidosha Kabushiki Kaisha Method for purifying exhaust gas
US5403807A (en) 1993-02-08 1995-04-04 Ford Motor Company Single phase metal-alumina sol-gel process and material
JP3291086B2 (ja) 1993-09-24 2002-06-10 トヨタ自動車株式会社 排ガス浄化用触媒及び排ガス浄化方法
JP3409894B2 (ja) * 1993-11-17 2003-05-26 トヨタ自動車株式会社 排ガス浄化用触媒及び排ガス浄化方法
DE19516920A1 (de) * 1995-05-09 1996-11-14 Daimler Benz Ag Material und Verfahren zur Adsorprtion und Desorption von Stickoxiden in Abgasen
US5874057A (en) * 1995-07-12 1999-02-23 Engelhard Corporation Lean NOx catalyst/trap method
JP3304771B2 (ja) * 1995-07-20 2002-07-22 トヨタ自動車株式会社 排ガス浄化用触媒
US6001319A (en) * 1995-09-19 1999-12-14 Ngk Spark Plug Co., Ltd. Method of removing nitrogen oxides using material for absorbing nitrogen oxides
US5727385A (en) 1995-12-08 1998-03-17 Ford Global Technologies, Inc. Lean-burn nox catalyst/nox trap system
JP3494331B2 (ja) 1996-02-02 2004-02-09 トヨタ自動車株式会社 排ガス浄化用触媒及びその製造方法

Also Published As

Publication number Publication date
EP0998970B1 (de) 2004-06-30
DE69918395T2 (de) 2005-06-02
US6217837B1 (en) 2001-04-17
EP0998970A1 (de) 2000-05-10

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