FR2146358A1 - Catalyst for purifying exhaust gases - contg cobalt palladium and nickel, chromium, manganese or iron, esp on spinel carrier - Google Patents

Catalyst for purifying exhaust gases - contg cobalt palladium and nickel, chromium, manganese or iron, esp on spinel carrier

Info

Publication number
FR2146358A1
FR2146358A1 FR7225904A FR7225904A FR2146358A1 FR 2146358 A1 FR2146358 A1 FR 2146358A1 FR 7225904 A FR7225904 A FR 7225904A FR 7225904 A FR7225904 A FR 7225904A FR 2146358 A1 FR2146358 A1 FR 2146358A1
Authority
FR
France
Prior art keywords
catalyst
exhaust gases
contg
esp
manganese
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.)
Granted
Application number
FR7225904A
Other languages
French (fr)
Other versions
FR2146358B1 (en
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.)
GCP Products UK Ltd
WR Grace and Co Conn
Original Assignee
WR Grace Ltd
WR Grace and Co Conn
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 WR Grace Ltd, WR Grace and Co Conn filed Critical WR Grace Ltd
Publication of FR2146358A1 publication Critical patent/FR2146358A1/en
Application granted granted Critical
Publication of FR2146358B1 publication Critical patent/FR2146358B1/fr
Granted legal-status Critical Current

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
    • 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
    • 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
    • B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/005—Spinels
    • 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble 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
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • B01J23/892—Nickel and noble 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
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • 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
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • 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
    • B01D2255/1023—Palladium
    • 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
    • B01D2255/2073—Manganese
    • 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
    • B01D2255/20—Metals or compounds thereof
    • B01D2255/207—Transition metals
    • B01D2255/20746—Cobalt
    • 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
    • B01D2255/20753—Nickel
    • 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
    • B01D2255/20784—Chromium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2255/00—Catalysts
    • B01D2255/90—Physical characteristics of catalysts
    • B01D2255/92—Dimensions
    • B01D2255/9207—Specific surface
    • 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)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Environmental & Geological Engineering (AREA)
  • Biomedical Technology (AREA)
  • Combustion & Propulsion (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

A catalyst for treating exhaust gases from combustion engines, and which can oxidise CO and hydrocarbons to CO2 and reduce oxides of N to N2, consists of 4-20wt.% CoO, 0-15 wt.% NiO, Cr2O3, MnO or Fe2O3, and 0.005-0.1 wt.% Pd on a carrier which makes a total of 100 wt.%. The catalyst has long life, acts quickly when the engine is started, and resists high temps., e.g. >980 degrees C.
FR7225904A 1971-07-20 1972-07-18 Catalyst for purifying exhaust gases - contg cobalt palladium and nickel, chromium, manganese or iron, esp on spinel carrier Granted FR2146358A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16446671A 1971-07-20 1971-07-20

Publications (2)

Publication Number Publication Date
FR2146358A1 true FR2146358A1 (en) 1973-03-02
FR2146358B1 FR2146358B1 (en) 1976-01-16

Family

ID=22594619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7225904A Granted FR2146358A1 (en) 1971-07-20 1972-07-18 Catalyst for purifying exhaust gases - contg cobalt palladium and nickel, chromium, manganese or iron, esp on spinel carrier

Country Status (4)

Country Link
DE (1) DE2231357A1 (en)
FR (1) FR2146358A1 (en)
IT (1) IT956978B (en)
NL (1) NL7210061A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321940A1 (en) * 1975-08-27 1977-03-25 Engelhard Min & Chem POLYFUNCTIONAL CATALYSTS AND METHOD OF USE
EP0208434A1 (en) * 1985-06-17 1987-01-14 Hitachi, Ltd. Process for removing nitrogen oxides and carbon monoxide simultaneously
EP0246859A1 (en) * 1986-05-19 1987-11-25 Johnson Matthey, Inc., Selective catalytic reduction catalysts
EP0676232A1 (en) * 1994-04-08 1995-10-11 Rhone-Poulenc Chimie Spinel catalyst for the reduction of nitrogen oxide emissions

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321940A1 (en) * 1975-08-27 1977-03-25 Engelhard Min & Chem POLYFUNCTIONAL CATALYSTS AND METHOD OF USE
EP0208434A1 (en) * 1985-06-17 1987-01-14 Hitachi, Ltd. Process for removing nitrogen oxides and carbon monoxide simultaneously
EP0246859A1 (en) * 1986-05-19 1987-11-25 Johnson Matthey, Inc., Selective catalytic reduction catalysts
US4782039A (en) * 1986-05-19 1988-11-01 Johnson Matthey, Inc. Selective catalytic reduction catalyst and a process for preparing the catalyst
EP0676232A1 (en) * 1994-04-08 1995-10-11 Rhone-Poulenc Chimie Spinel catalyst for the reduction of nitrogen oxide emissions
FR2718371A1 (en) * 1994-04-08 1995-10-13 Rhone Poulenc Chimie Nitrogen oxide reduction catalysts based on spinels.
US5736114A (en) * 1994-04-08 1998-04-07 Rhone-Poulenc Chimie Spinel-based catalysts for reducing exhaust emissions of NOx
US5876681A (en) * 1994-04-08 1999-03-02 Rhone-Poulenc Chimie Spinel-based catalysts for reducing exhaust emissions of NOx

Also Published As

Publication number Publication date
FR2146358B1 (en) 1976-01-16
IT956978B (en) 1973-10-10
DE2231357A1 (en) 1973-02-01
NL7210061A (en) 1973-01-23

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