FR2218936A1 - Catalysts for redn. of nitrogen oxides - contg. nickel and copper oxides and a refractory oxide - Google Patents

Catalysts for redn. of nitrogen oxides - contg. nickel and copper oxides and a refractory oxide

Info

Publication number
FR2218936A1
FR2218936A1 FR7306279A FR7306279A FR2218936A1 FR 2218936 A1 FR2218936 A1 FR 2218936A1 FR 7306279 A FR7306279 A FR 7306279A FR 7306279 A FR7306279 A FR 7306279A FR 2218936 A1 FR2218936 A1 FR 2218936A1
Authority
FR
France
Prior art keywords
al2o3
oxide
tio2
pref
mgo
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
FR7306279A
Other languages
French (fr)
Other versions
FR2218936B1 (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.)
Pro Catalyse SA
Original Assignee
Pro Catalyse SA
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 Pro Catalyse SA filed Critical Pro Catalyse SA
Priority to FR7306279A priority Critical patent/FR2218936A1/en
Publication of FR2218936A1 publication Critical patent/FR2218936A1/en
Application granted granted Critical
Publication of FR2218936B1 publication Critical patent/FR2218936B1/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
    • B01D53/9404—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
    • 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
    • B01J23/74—Iron group metals
    • B01J23/755—Nickel
    • 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
    • B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/204—Carbon monoxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/20—Reductants
    • B01D2251/208—Hydrocarbons
    • 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
    • B01D2255/207—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
    • B01D2255/20753—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
    • B01D2255/20761—Copper
    • 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
    • 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
    • B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/61—Surface area
    • B01J35/613—10-100 m2/g

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, esp. useful for treating exhaust gases from IC engines, is produced by (a) intimately mixing (i) a catalytically active component consisting of >=1 oxide of Cu and >=1 oxide of Ni and having a specific surface of >=10 (pref. 20-100)m2/g with (ii) >=1 refractory oxide (pref. Al2O3, SiO2, MgO, ZrO2, TiO2, SiO2-Al2O3, Al2O3-TiO2, Al2O3-CaO, Al2O3-MgO, Al2O3-TiO2-CaO, Al2O3-SiO2-MgO, or Al2O3-TiO2-MgO); (b) moulding the mixt.; and (c) thermally activating the moulded mixt. The Cu:(Ni+Cu) atomic ratio is pref. 0.05-0.5:1. Component (i) pref. also contains >=1 oxide of a metal M selected from Mn, Cr, Fe, Co, V, Se, Y and the rare-earth metals, the M/Ni atomic ratio being 0.03-1:1.
FR7306279A 1973-02-22 1973-02-22 Catalysts for redn. of nitrogen oxides - contg. nickel and copper oxides and a refractory oxide Granted FR2218936A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7306279A FR2218936A1 (en) 1973-02-22 1973-02-22 Catalysts for redn. of nitrogen oxides - contg. nickel and copper oxides and a refractory oxide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7306279A FR2218936A1 (en) 1973-02-22 1973-02-22 Catalysts for redn. of nitrogen oxides - contg. nickel and copper oxides and a refractory oxide

Publications (2)

Publication Number Publication Date
FR2218936A1 true FR2218936A1 (en) 1974-09-20
FR2218936B1 FR2218936B1 (en) 1976-11-05

Family

ID=9115251

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7306279A Granted FR2218936A1 (en) 1973-02-22 1973-02-22 Catalysts for redn. of nitrogen oxides - contg. nickel and copper oxides and a refractory oxide

Country Status (1)

Country Link
FR (1) FR2218936A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310802A1 (en) * 1975-05-14 1976-12-10 Exxon Research Engineering Co CATALYTIC COMPOSITION WITH NICKEL AND ITS MANUFACTURING PROCESS
EP0572081A1 (en) * 1992-05-28 1993-12-01 Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica Supported metal catalyst for hydrogenating organic compounds and process for preparing it
EP0701859A1 (en) * 1994-09-14 1996-03-20 ICT Co., Ltd. Catalyst for decomposition of nitrogen oxides and method for purifying diesel engine exhaust gas by the use of the catalyst

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2059443A5 (en) * 1970-04-17 1971-05-28 Degussa

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2059443A5 (en) * 1970-04-17 1971-05-28 Degussa

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2310802A1 (en) * 1975-05-14 1976-12-10 Exxon Research Engineering Co CATALYTIC COMPOSITION WITH NICKEL AND ITS MANUFACTURING PROCESS
EP0572081A1 (en) * 1992-05-28 1993-12-01 Ministero Dell' Universita' E Della Ricerca Scientifica E Tecnologica Supported metal catalyst for hydrogenating organic compounds and process for preparing it
US5492877A (en) * 1992-05-28 1996-02-20 Ministero Dell `Universita` E Della Ricerca Scientifica Tecnologica Supported metal catalyst for hydrogenating organic compounds and process for preparing it
EP0701859A1 (en) * 1994-09-14 1996-03-20 ICT Co., Ltd. Catalyst for decomposition of nitrogen oxides and method for purifying diesel engine exhaust gas by the use of the catalyst

Also Published As

Publication number Publication date
FR2218936B1 (en) 1976-11-05

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Legal Events

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