GB887680A - Method of operating a detoxicating plant for a town gas containing nitrogen oxides and gum forming substances - Google Patents

Method of operating a detoxicating plant for a town gas containing nitrogen oxides and gum forming substances

Info

Publication number
GB887680A
GB887680A GB28082/59A GB2808259A GB887680A GB 887680 A GB887680 A GB 887680A GB 28082/59 A GB28082/59 A GB 28082/59A GB 2808259 A GB2808259 A GB 2808259A GB 887680 A GB887680 A GB 887680A
Authority
GB
United Kingdom
Prior art keywords
catalyst
oxide
nitrogen oxides
molybdenum
gas containing
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.)
Expired
Application number
GB28082/59A
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.)
GEA Group AG
Original Assignee
Metallgesellschaft 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
Application filed by Metallgesellschaft AG filed Critical Metallgesellschaft AG
Publication of GB887680A publication Critical patent/GB887680A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F02B75/222—Multi-cylinder engines with cylinders in V, fan, or star arrangement with cylinders in star arrangement
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • B01D53/8628—Processes characterised by a specific catalyst
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
    • C10K3/00—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide
    • C10K3/02—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment
    • C10K3/04—Modifying the chemical composition of combustible gases containing carbon monoxide to produce an improved fuel, e.g. one of different calorific value, which may be free from carbon monoxide by catalytic treatment reducing the carbon monoxide content, e.g. water-gas shift [WGS]
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/584—Recycling of catalysts

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Catalysts (AREA)

Abstract

887,680. Purifying gases. METALLGESELLSCHAFT A.G. Aug. 17, 1959 [Jan. 16, 1959], No. 28082/59. Drawings to Specification. Class 55 (2). In the detoxification of town gas containing carbon monoxide, nitrogen oxides and gumforming constituents by the catalytic conversion of the carbon monoxide in the presence of steam at elevated temperature over an iron oxide catalyst the catalyst is prevented from being fouled by nitrogen oxide gums and/or their decomposition products by arranging in advance of the catalyst a preliminary catalyst containing cobalt and molybdenum in " sulphured form," the period of contact of the gas, which is pre-heated to 300-450‹ C., preferably 350-400‹ C., being adjusted so as to remove any oxygen or nitrogen oxides before the gas comes into contact with the iron oxide catalyst. " Sulphured form " relates to the conversion of a molybdenum or cobalt salt into initially the corresponding oxide and subsequently the corresponding sulphide. Preferably the preliminary catalyst contains 10-20% by weight of molybdenum oxide and 2-5% by weight of cobalt oxide and is contained in at least two vessels, each of which can be independently connected to a system for regenerating the catalyst which it contains. Reactivation of the preliminary catalyst may be effected by exposing it to sulphur or a compound thereof, while the iron-oxide catalyst may be regenerated by oxidation, followed by partial reduction.
GB28082/59A 1959-01-16 1959-08-17 Method of operating a detoxicating plant for a town gas containing nitrogen oxides and gum forming substances Expired GB887680A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE887680X 1959-01-16

Publications (1)

Publication Number Publication Date
GB887680A true GB887680A (en) 1962-01-24

Family

ID=6833930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28082/59A Expired GB887680A (en) 1959-01-16 1959-08-17 Method of operating a detoxicating plant for a town gas containing nitrogen oxides and gum forming substances

Country Status (2)

Country Link
DE (1) DE1070773B (en)
GB (1) GB887680A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396474A (en) * 1993-04-29 1995-03-07 Lin; Jay Clock assembly

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255227B (en) * 1964-12-23 1967-11-30 Ernst Karwat Dr Ing Process for removing nitrogen oxides from flue gas
DE1667183A1 (en) * 1967-07-06 1971-06-03 Metallgesellschaft Ag Process for the regeneration of catalysts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5396474A (en) * 1993-04-29 1995-03-07 Lin; Jay Clock assembly

Also Published As

Publication number Publication date
DE1070773B (en) 1959-12-10

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