GB829859A - Process of recovering ammonia from an ammonia-containing gas - Google Patents

Process of recovering ammonia from an ammonia-containing gas

Info

Publication number
GB829859A
GB829859A GB10395/58A GB1039558A GB829859A GB 829859 A GB829859 A GB 829859A GB 10395/58 A GB10395/58 A GB 10395/58A GB 1039558 A GB1039558 A GB 1039558A GB 829859 A GB829859 A GB 829859A
Authority
GB
United Kingdom
Prior art keywords
hso4
liquor
reaction
crystals
slurry
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
GB10395/58A
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.)
Inland Steel Co
Original Assignee
Inland Steel Co
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 Inland Steel Co filed Critical Inland Steel Co
Publication of GB829859A publication Critical patent/GB829859A/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
    • C10K1/103—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkali- or earth-alkali- or NH4 salts or inorganic acids derived from sulfur
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/12—Separation of ammonia from gases and vapours

Landscapes

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

Abstract

<PICT:0829859/III/1> In recovering ammonia from a gas by reacting with aqueous ammonium bisulphate liquor, separating ammonium sulphate from the liquor, recycling the liquor to the reaction, thermally decomposing the (NH4)2SO4 to form NH3 and (NH4)HSO4, recovering the NH3, and recycling the (NH4)HSO4 to the reaction, a slurry of (NH4)2SO4 crystals in liquor i withdrawn from the reaction and molten (NH4)HSO4 from the thermal decomposition is mixed with the slurry to dissolve the bisulphate in the liquor for return to the reaction and to precipitate additional (NH4)2SO4 crystals. Coke oven gas enters absorber 27 at 26 and bubbles through aqueous (NH4)HSO4 therein. Unabsorbed gases leave at 28. The slurry of crystals is withdrawn at 29 to mixing vessel 32, provided with stirrer 34, where molten (NH4)HSO4 is added through 33. The contents of vessel 32 may be cooled to less than 100 DEG F. by coil 36. The crystal slurry passes to centrifuge 38, and bisulphate solution is recycled thence through 39 to absorber 27. The separated (NH4)2SO4 crystals pass through drier 42, supply hopper 44 and feeder 46 to decomposition vessel 47 heated by coil 48 to 550-750 DEG F. Preferably a molten bath 49 of (NH4)HSO4 is maintained in 47 and the rate of feed through 46 and withdrawal through 33 is controlled to maintain the level constant. NH3 passes out through purifier 53, pump 52, and drying tower 57 and is liquefied in compressor 58.
GB10395/58A 1957-08-09 1958-04-01 Process of recovering ammonia from an ammonia-containing gas Expired GB829859A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US829859XA 1957-08-09 1957-08-09

Publications (1)

Publication Number Publication Date
GB829859A true GB829859A (en) 1960-03-09

Family

ID=22174699

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10395/58A Expired GB829859A (en) 1957-08-09 1958-04-01 Process of recovering ammonia from an ammonia-containing gas

Country Status (1)

Country Link
GB (1) GB829859A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012143A1 (en) * 1990-04-14 1991-11-07 Still Otto Gmbh Washing ammonia out of coke oven gas with water - comprises two=stage process without need for distn. of regeneration plant and without environmental and cost drawbacks

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4012143A1 (en) * 1990-04-14 1991-11-07 Still Otto Gmbh Washing ammonia out of coke oven gas with water - comprises two=stage process without need for distn. of regeneration plant and without environmental and cost drawbacks

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