GB882752A - Treatment of cokeí¬oven gas - Google Patents

Treatment of cokeí¬oven gas

Info

Publication number
GB882752A
GB882752A GB33459/59A GB3345959A GB882752A GB 882752 A GB882752 A GB 882752A GB 33459/59 A GB33459/59 A GB 33459/59A GB 3345959 A GB3345959 A GB 3345959A GB 882752 A GB882752 A GB 882752A
Authority
GB
United Kingdom
Prior art keywords
gas
washing
liquor
coke
oven gas
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
GB33459/59A
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.)
Bethlehem Steel Corp
Original Assignee
Bethlehem Steel Corp
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 Bethlehem Steel Corp filed Critical Bethlehem Steel Corp
Publication of GB882752A publication Critical patent/GB882752A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C10K1/00—Purifying combustible gases containing carbon monoxide
    • C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
    • C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
    • C10K1/105—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids containing metal compounds other than alkali- or earth-alkali carbonates, -hydroxides, oxides, or salts of inorganic acids derived from sulfur
    • C10K1/106—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids containing metal compounds other than alkali- or earth-alkali carbonates, -hydroxides, oxides, or salts of inorganic acids derived from sulfur containing Fe compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

In a method of removing ammonia and acidic impurities from coke-oven gas, a first portion of the gas is washed with a liquor containing free sulphuric acid and ferrous sulphate, obtained for example in pickling steel, and a second portion of the gas is washed with a liquor which is almost neutral and has been used in washing the first portion of the gas. The liquor used in washing the first portion of the gas may have a pH of less than 2,5 and in washing the second portion of the gas a pH between 2,8 and 3,5. The liquor for washing the second portion of the gas may be used until the pH has risen to 8. The two portions of the coke-oven gas are washed in separate scrubbers and the process is preferably a continuous one, liquor being continuously supplied to and withdrawn from each scrubber and also re-circulated within each scrubber. The second portion of the coke-oven gas may be subjected to an additional washing to remove any residual ammonia. Ammonia may, if necessary, be added to the coke-oven gas and sulphuric acid or ferrous sulphate to the washing liquor. Ammonium sulphate and ferrous sulphide are recovered from the second scrubber.
GB33459/59A 1958-10-02 1959-10-02 Treatment of cokeí¬oven gas Expired GB882752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US882752XA 1958-10-02 1958-10-02

Publications (1)

Publication Number Publication Date
GB882752A true GB882752A (en) 1961-11-22

Family

ID=22210424

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33459/59A Expired GB882752A (en) 1958-10-02 1959-10-02 Treatment of cokeí¬oven gas

Country Status (1)

Country Link
GB (1) GB882752A (en)

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