IL44734A - Oxidation of carbon monoxide and hydrocarbons - Google Patents

Oxidation of carbon monoxide and hydrocarbons

Info

Publication number
IL44734A
IL44734A IL44734A IL4473474A IL44734A IL 44734 A IL44734 A IL 44734A IL 44734 A IL44734 A IL 44734A IL 4473474 A IL4473474 A IL 4473474A IL 44734 A IL44734 A IL 44734A
Authority
IL
Israel
Prior art keywords
oxidation
effected
carrier
contact
supported catalyst
Prior art date
Application number
IL44734A
Other versions
IL44734A0 (en
Original Assignee
Hoechst Ag
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 DE19732323251 external-priority patent/DE2323251B2/en
Priority claimed from DE2412290A external-priority patent/DE2412290C3/en
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of IL44734A0 publication Critical patent/IL44734A0/en
Publication of IL44734A publication Critical patent/IL44734A/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
    • B01D53/944—Simultaneously removing carbon monoxide, hydrocarbons or carbon making use of oxidation catalysts
    • 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
    • B01J23/84—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 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/889—Manganese, technetium or rhenium
    • B01J23/8892—Manganese
    • 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
    • B01J37/0018—Addition of a binding agent or of material, later completely removed among others as result of heat treatment, leaching or washing,(e.g. forming of pores; protective layer, desintegrating by heat)
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

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)

Claims (18)

1. WHAT WE CLAIM IS:
2. A process for oxidizing carbon monoxide and hydrocarbons, particularly those which are contained in exhaust gas from internal combustion engines in contact with one or more oxygen-containing gases to carbon dioxide and water, which comprises effecting the oxidation at temperatures within the range 150 and 800°C in contact with a carrier- supported catalyst comprising a mixture of aluminates of copper, manganese and nickel as its active ingredients, andpure aluminum oxide as its carrier, the total proportions of aluminates being within the range 10 and 5 weighty. A process as claimed in claim , wherein the oxidation is effected at temperatures within the range 200 and 700°C.
3. A process as claimed in claim 1 , wherein the oxidation is effected at temperatures within the range 300 and 600°C.
4. A process as claimed in any one of claims 1 to 3, wherein the oxidation is effected in contact with a carrier-supported catalyst containing the aluminates in a total proportion within the range 20 and 35 weight^.
5. A process as claimed in any one of claims 1 to 4, wherein the oxidation is effected in contact with a carrier-supported catalyst containing copper, manganese and nickel in a ratio by weight within the range (2-4) : (1-2) : (0.1-1).
6. A process as claimed in any one of claims 1 to 5, wherein the oxidation is effected in contact with a carrier-supported catalyst having between 0.5 and 10 weighty of cerium in oxide form as an additional ingredient deposited thereon.
7. A process as claimed in claim 6, wherein the oxidation is effected in contact with a carrier-supported catalyst having between 1 and 7 weight^ of cerium in oxide form deposit- ed thereon.
8. ) A process as claimed in any one of claims 1 to 7, wherein the oxidation is effected in contact with a carrier- supported catalyst having a compressive strength within the range 3 and 14· kg/mm.
9. ) A process as claimed in claim 8, wherein the oxidation is effected in contact with a carrier-supported catalyst having a compressive strength within the range 4 and 10 kg/mm.
10. ) A process as claimed in any one of claims 1 to 9, wherein the oxidation is effected in contact with a carrier-supported catalyst made by transforming pure aluminum oxide into moulded material; calcining the moulded material at temperatures within the range 1000 and 1200°C; impregnating the calcined moulded material with an aqueous solution of one or more salts of copper, nickel and manganese with a decomposable acid; decomposing the metal salts applied to the moulded material at temperatures within the. range 300 and 600°C; and calcining the resulting metal oxide-containing moulded material at temperatures within the range 800 and 1200°C.
11. ) A process as claimed in claim 10, wherein the oxidation is '· effected in contact with. a carrier-supported catalyst made by impregnating the calcined moulded material with an aqueous solution of a cerium salt of a readily decomposable acid; drying the cerium salt applied to the moulded material at temperatures within the range 130 and 150°C; decomposing · the dry cerium salt on the moulded material by gradual heating at temperatures within the range 200 and 300°C and within the range 450 and 550°C, respectively; and calcining the resulting cerium oxide-containing moulded material at temperatures within the range 700 and 900 C.
12. ) A process as claimed in claim 10, wherein the oxidation is effected in contact with a carrier-supported catalyst made from pure aluminum oxide, the aluminum oxide being produced by hydrolyzing aluminum chloride with the use of an oxyhydrogen flame.
13. ) A process as claimed in claim 10 or 12, wherein the oxidation is effected in contact with a carrier-supported catalyst made from aluminum oxide, the aluminum oxide being stirred into water and the resulting paste being dried at 100°C.
14. ) A process as claimed in claim 13, wherein the oxidation is effected in contact with a carrier-supported catalyst made from the dried aluminum oxide paste.
15. ) A process as claimed in any one of claims 10 and 12 to 14, wherein the oxidation is effected in contact with a carrier-supported catalyst made from aluminum oxide moulded in admixture with graphite.
16. ) A process as claimed in claim 15, wherein the oxidation is effected in contact with a carrier-supported catalyst • made from aluminum oxide moulded in admixture with between 3 and 10 weight^, preferably 5 weight^, of graphite'.
17. ) A process as claimed in any one of claims 10 and 12 to 16, wherein the oxidation is effected in contact with a carrier-supported catalyst made from aluminum oxide moulded in admixture with graphite and freed therefrom prior to calcining the moulded .aluminum oxide, the graphite being burned off.
18. ) A process as claimed in claim 17,' wherein the oxidation is effected in contact with a carrier-supported catalyst made from aluminum oxide moulded in admixture with graphite and freed therefrom prior to calcining the moulded aluminum oxide, the graphite being burned off at temperatures within the range 500 and 750°C, preferably 650°C. A process as claimed in. any one of claims 10 to 18, where in the oxidation is effected in contact with a carrier-supported catalyst, wherein nitrates are the copper, manganese, nickel and cerium salts of decomposable acids'. A process as claimed in claim 19, wherein the oxidation is effected in contact with a carrier-supported catalyst, wherein the copper, manganese and nickel nitrates have been decomposed at temperatures within the range 350 and 50°C . A process as claimed in any one of claims 10 and 12 to 20, wherein the oxidation is effected in contact with a carrier-supported catalyst, wherein the moulded material containing copper, manganese and nickel oxides has been calcined at temperatures within the range 950 and 1050°C. A process as claimed in any one of claims 1 to 21 conducted substantially as described in any one of Examples 3 to 5, 7, 8 and 11 herein. Atto rney s f o r A p p l i c a n t
IL44734A 1973-05-09 1974-04-29 Oxidation of carbon monoxide and hydrocarbons IL44734A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19732323251 DE2323251B2 (en) 1973-05-09 1973-05-09 PROCESS FOR OXIDIZATION OF CARBON MONOXIDE AND HYDROCARBONS
DE2412290A DE2412290C3 (en) 1974-03-14 1974-03-14 Process for the oxidation of carbon monoxide and hydrocarbons

Publications (2)

Publication Number Publication Date
IL44734A0 IL44734A0 (en) 1974-06-30
IL44734A true IL44734A (en) 1976-08-31

Family

ID=25765096

Family Applications (1)

Application Number Title Priority Date Filing Date
IL44734A IL44734A (en) 1973-05-09 1974-04-29 Oxidation of carbon monoxide and hydrocarbons

Country Status (13)

Country Link
AT (1) AT359983B (en)
CA (1) CA1013547A (en)
CH (1) CH603994A5 (en)
CS (1) CS169764B2 (en)
DD (1) DD110916A5 (en)
FR (1) FR2228720B1 (en)
GB (1) GB1462469A (en)
IL (1) IL44734A (en)
IT (1) IT1011403B (en)
NL (1) NL179789C (en)
PL (1) PL96886B1 (en)
RO (1) RO71029A (en)
SE (1) SE403642B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2513942C3 (en) * 1975-03-29 1979-09-13 Hoechst Ag, 6000 Frankfurt Process for the production of a supported catalyst
WO1994012432A1 (en) * 1992-12-02 1994-06-09 Commonwealth Scientific And Industrial Research Organisation Gas purification
CN114653375B (en) * 2020-12-23 2024-05-14 中国科学院江西稀土研究院 Catalyst for removing CO in sintering flue gas and preparation method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA970533A (en) * 1969-10-06 1975-07-08 Alexander Wolberg Processes and catalysts for treating hydrocarbon combustion exhaust
DD100635A5 (en) * 1971-12-30 1973-10-05
CA990478A (en) * 1972-02-14 1976-06-08 Abe Warshaw Process and catalyst for treating combustion exhaust gas
DE2242915C3 (en) * 1972-08-31 1980-08-14 Hoechst Ag, 6000 Frankfurt Process for the oxidation of carbon monoxide and / or hydrocarbons in exhaust gases from internal combustion engines

Also Published As

Publication number Publication date
NL179789C (en) 1986-11-17
CA1013547A (en) 1977-07-12
DD110916A5 (en) 1975-01-12
FR2228720B1 (en) 1978-07-13
CH603994A5 (en) 1978-08-31
FR2228720A1 (en) 1974-12-06
AT359983B (en) 1980-12-10
NL179789B (en) 1986-06-16
NL7405849A (en) 1974-11-12
CS169764B2 (en) 1976-07-29
IL44734A0 (en) 1974-06-30
PL96886B1 (en) 1978-01-31
IT1011403B (en) 1977-01-20
GB1462469A (en) 1977-01-26
RO71029A (en) 1982-02-26
SE403642B (en) 1978-08-28
ATA376774A (en) 1980-05-15

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