FR2371961A1 - CATALYST FOR THE REDUCTION OF NITROGEN OXIDES - Google Patents

CATALYST FOR THE REDUCTION OF NITROGEN OXIDES

Info

Publication number
FR2371961A1
FR2371961A1 FR7733373A FR7733373A FR2371961A1 FR 2371961 A1 FR2371961 A1 FR 2371961A1 FR 7733373 A FR7733373 A FR 7733373A FR 7733373 A FR7733373 A FR 7733373A FR 2371961 A1 FR2371961 A1 FR 2371961A1
Authority
FR
France
Prior art keywords
nitrogen oxides
reduction
catalyst
silica
clay
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
FR7733373A
Other languages
French (fr)
Other versions
FR2371961B1 (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.)
Mitsui Petrochemical Industries Ltd
Original Assignee
Mitsui Petrochemical Industries 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
Priority claimed from JP51141777A external-priority patent/JPS5932180B2/en
Priority claimed from JP5174477A external-priority patent/JPS53137091A/en
Application filed by Mitsui Petrochemical Industries Ltd filed Critical Mitsui Petrochemical Industries Ltd
Publication of FR2371961A1 publication Critical patent/FR2371961A1/en
Application granted granted Critical
Publication of FR2371961B1 publication Critical patent/FR2371961B1/fr
Granted 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
    • B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product 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
    • 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
    • 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
    • B01J21/16—Clays or other mineral silicates
    • 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
    • B01J23/10—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of rare earths
    • 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
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • 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
    • B01J23/72—Copper
    • 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
    • B01J23/8906—Iron and noble metals
    • 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
    • B01D2255/20—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
    • B01D2255/20707—Titanium
    • 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
    • B01D2255/20723—Vanadium
    • 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
    • B01D2255/9202—Linear dimensions

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)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

Composition catalytique pour la réduction en phase vapeur d'oxydes d'azote avec de l'ammoniac. Ce catalyseur comprend un composé de métal de transition non noble sur un support moulé formé d'un oxyde de titane et d'une argile en particules de dimension moyenne de 0,1 à 100 microns, avec éventuellement un composant de support supplémentaire qui est une matière fibreuse minérale, un aquagel de silice ou un sol de silice.Catalytic composition for the vapor phase reduction of nitrogen oxides with ammonia. This catalyst comprises a non-noble transition metal compound on a molded support formed of a titanium oxide and a clay in particles of average size from 0.1 to 100 microns, optionally with an additional support component which is a. mineral fibrous material, a silica aquagel or a silica sol.

FR7733373A 1976-11-27 1977-11-07 CATALYST FOR THE REDUCTION OF NITROGEN OXIDES Granted FR2371961A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP51141777A JPS5932180B2 (en) 1976-11-27 1976-11-27 Catalyst for reduction of nitrogen oxides
JP5174477A JPS53137091A (en) 1977-05-07 1977-05-07 Nitrogen oxides reduction catalyst

Publications (2)

Publication Number Publication Date
FR2371961A1 true FR2371961A1 (en) 1978-06-23
FR2371961B1 FR2371961B1 (en) 1981-10-02

Family

ID=26392306

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733373A Granted FR2371961A1 (en) 1976-11-27 1977-11-07 CATALYST FOR THE REDUCTION OF NITROGEN OXIDES

Country Status (2)

Country Link
FR (1) FR2371961A1 (en)
GB (1) GB1568594A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543020A1 (en) * 1983-03-24 1984-09-28 Nippon Catalytic Chem Ind OXIDATION CATALYST COMPRISING A HETEROPOLYACIDE WITH TRICHITES
EP0149966A1 (en) * 1983-11-16 1985-07-31 Mitsubishi Jukogyo Kabushiki Kaisha Catalyst for treating waste gases
FR2589143A1 (en) * 1985-10-28 1987-04-30 Elf France BRIDGE CLAYS WITH IMPROVED THERMAL STABILITY, PROCESS FOR THEIR PREPARATION AND THEIR USE AS CATALYSTS
US4719192A (en) * 1985-08-13 1988-01-12 Sud-Chemie Aktiengesellschaft Catalyst for decreasing the content of nitrogen oxides in flue gases
US4734391A (en) * 1986-08-09 1988-03-29 Sud-Chemie Aktiengesellschaft Catalyst for decreasing the content of nitrogen oxides in flue gases
EP0274148A2 (en) * 1986-12-06 1988-07-13 Metallgesellschaft Ag Process for the catalytic reduction of nitrogen monoxide in a gas
US4774213A (en) * 1985-12-16 1988-09-27 Sud-Chemie Aktiengesellschaft Ferruginous catalyst for decreasing the content of nitrogen oxides in flue gases
EP0504504A1 (en) * 1989-08-28 1992-09-23 Uop Production of alkyl aromatic compounds with a solid catalyst
US5182247A (en) * 1991-02-11 1993-01-26 Texaco Inc. Sulfated catalyst for skeletal isomerization of olefins

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2543020A1 (en) * 1983-03-24 1984-09-28 Nippon Catalytic Chem Ind OXIDATION CATALYST COMPRISING A HETEROPOLYACIDE WITH TRICHITES
EP0149966A1 (en) * 1983-11-16 1985-07-31 Mitsubishi Jukogyo Kabushiki Kaisha Catalyst for treating waste gases
US4719192A (en) * 1985-08-13 1988-01-12 Sud-Chemie Aktiengesellschaft Catalyst for decreasing the content of nitrogen oxides in flue gases
US4720476A (en) * 1985-08-13 1988-01-19 Sud-Chemie Aktiengesellschaft Catalyst for decreasing the content of nitrogen oxides in flue gases
FR2589143A1 (en) * 1985-10-28 1987-04-30 Elf France BRIDGE CLAYS WITH IMPROVED THERMAL STABILITY, PROCESS FOR THEIR PREPARATION AND THEIR USE AS CATALYSTS
US4774213A (en) * 1985-12-16 1988-09-27 Sud-Chemie Aktiengesellschaft Ferruginous catalyst for decreasing the content of nitrogen oxides in flue gases
US4734391A (en) * 1986-08-09 1988-03-29 Sud-Chemie Aktiengesellschaft Catalyst for decreasing the content of nitrogen oxides in flue gases
EP0274148A2 (en) * 1986-12-06 1988-07-13 Metallgesellschaft Ag Process for the catalytic reduction of nitrogen monoxide in a gas
EP0274148A3 (en) * 1986-12-06 1988-07-27 Metallgesellschaft Ag Process for the catalytic reduction of nitrogen monoxide in a gas
EP0504504A1 (en) * 1989-08-28 1992-09-23 Uop Production of alkyl aromatic compounds with a solid catalyst
US5182247A (en) * 1991-02-11 1993-01-26 Texaco Inc. Sulfated catalyst for skeletal isomerization of olefins

Also Published As

Publication number Publication date
GB1568594A (en) 1980-06-04
FR2371961B1 (en) 1981-10-02

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