WO2002030546A3 - Catalytic material and method for abatement of nitrogen oxides - Google Patents

Catalytic material and method for abatement of nitrogen oxides Download PDF

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Publication number
WO2002030546A3
WO2002030546A3 PCT/US2001/031331 US0131331W WO0230546A3 WO 2002030546 A3 WO2002030546 A3 WO 2002030546A3 US 0131331 W US0131331 W US 0131331W WO 0230546 A3 WO0230546 A3 WO 0230546A3
Authority
WO
WIPO (PCT)
Prior art keywords
catalytic material
praseodymium
lanthanum
palladium
platinum
Prior art date
Application number
PCT/US2001/031331
Other languages
French (fr)
Other versions
WO2002030546A2 (en
Inventor
Shau-Lin F Chen
Chung-Zong Wan
Alan R Amundsen
Original Assignee
Engelhard Corp
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 Engelhard Corp filed Critical Engelhard Corp
Priority to KR10-2003-7005094A priority Critical patent/KR20030061376A/en
Priority to EP01977562A priority patent/EP1324816A2/en
Priority to AU2001296672A priority patent/AU2001296672A1/en
Priority to JP2002533982A priority patent/JP2004523336A/en
Publication of WO2002030546A2 publication Critical patent/WO2002030546A2/en
Publication of WO2002030546A3 publication Critical patent/WO2002030546A3/en

Links

Classifications

    • 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
    • B01D53/9445—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945—Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
    • B01J35/56—Foraminous structures having flow-through passages or channels, e.g. grids or three-dimensional monoliths
    • 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

Landscapes

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

Abstract

A three-way catalytic material contains palladium-containing inorganic support particles that include lanthanum and praseodymium and is preferably substantially free of neodymium and barium. The combination of lanthanum and praseodymium together with the palladium serves to signigicantly enhance NOx reduction in gas streams that do not contain significant quantities of SO2. The catalytic material may also include other platinum grup metals, e.g., platinum, rhodium, etc. Optionally, the palladium, lanthanum and praseodymium-containing particles may be different from the particles containing the other platinum group metals.
PCT/US2001/031331 2000-10-11 2001-10-05 Catalytic material and method for abatement of nitrogen oxides WO2002030546A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR10-2003-7005094A KR20030061376A (en) 2000-10-11 2001-10-05 Catalytic Material and Method for Abatement of Nitrogen Oxides
EP01977562A EP1324816A2 (en) 2000-10-11 2001-10-05 Catalytic material and method for abatement of nitrogen oxides
AU2001296672A AU2001296672A1 (en) 2000-10-11 2001-10-05 Catalytic material and method for abatement of nitrogen oxides
JP2002533982A JP2004523336A (en) 2000-10-11 2001-10-05 Catalyst materials and methods for reducing nitrogen oxides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US68656000A 2000-10-11 2000-10-11
US09/686,560 2000-10-11

Publications (2)

Publication Number Publication Date
WO2002030546A2 WO2002030546A2 (en) 2002-04-18
WO2002030546A3 true WO2002030546A3 (en) 2002-05-30

Family

ID=24756810

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/031331 WO2002030546A2 (en) 2000-10-11 2001-10-05 Catalytic material and method for abatement of nitrogen oxides

Country Status (5)

Country Link
EP (1) EP1324816A2 (en)
JP (1) JP2004523336A (en)
KR (1) KR20030061376A (en)
AU (1) AU2001296672A1 (en)
WO (1) WO2002030546A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2876413B1 (en) * 2004-10-07 2007-03-16 Renault Sas PARTICULATE FILTER IMPREGNATED FROM A CATALYTIC FORMULATION FOR INTERNAL COMBUSTION ENGINE
JP2014124631A (en) * 2012-12-27 2014-07-07 Toyota Motor Corp Exhaust gas purification catalyst and exhaust gas purification method

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504598A (en) * 1983-05-12 1985-03-12 Nippon Shokubai Kagaku Kogyo Co., Ltd. Process for producing honeycomb catalyst for exhaust gas conversion
EP0472307A1 (en) * 1990-08-22 1992-02-26 Imperial Chemical Industries Plc Oxidation catalysts essentially free from group VIII elements
US5556825A (en) * 1995-01-06 1996-09-17 Ford Motor Company Automotive catalysts with improved oxygen storage and metal dispersion
EP0754493A2 (en) * 1995-07-21 1997-01-22 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gases and process for producing the same
US5736482A (en) * 1995-02-03 1998-04-07 Institut Francais Du Petrole Catalysts for reducing nitrogen oxides to molecular nitrogen in a superstoichiometric medium of oxidizing compounds, process for preparation, and uses
US5898014A (en) * 1996-09-27 1999-04-27 Engelhard Corporation Catalyst composition containing oxygen storage components
WO2000044493A1 (en) * 1999-01-28 2000-08-03 Engelhard Corporation Catalyst composition containing oxygen storage components

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4504598A (en) * 1983-05-12 1985-03-12 Nippon Shokubai Kagaku Kogyo Co., Ltd. Process for producing honeycomb catalyst for exhaust gas conversion
EP0472307A1 (en) * 1990-08-22 1992-02-26 Imperial Chemical Industries Plc Oxidation catalysts essentially free from group VIII elements
US5556825A (en) * 1995-01-06 1996-09-17 Ford Motor Company Automotive catalysts with improved oxygen storage and metal dispersion
US5736482A (en) * 1995-02-03 1998-04-07 Institut Francais Du Petrole Catalysts for reducing nitrogen oxides to molecular nitrogen in a superstoichiometric medium of oxidizing compounds, process for preparation, and uses
EP0754493A2 (en) * 1995-07-21 1997-01-22 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gases and process for producing the same
US5898014A (en) * 1996-09-27 1999-04-27 Engelhard Corporation Catalyst composition containing oxygen storage components
WO2000044493A1 (en) * 1999-01-28 2000-08-03 Engelhard Corporation Catalyst composition containing oxygen storage components

Also Published As

Publication number Publication date
WO2002030546A2 (en) 2002-04-18
JP2004523336A (en) 2004-08-05
AU2001296672A1 (en) 2002-04-22
EP1324816A2 (en) 2003-07-09
KR20030061376A (en) 2003-07-18

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