GB958054A - Method of recovering ammonia from coke-oven gases - Google Patents

Method of recovering ammonia from coke-oven gases

Info

Publication number
GB958054A
GB958054A GB913561A GB913561A GB958054A GB 958054 A GB958054 A GB 958054A GB 913561 A GB913561 A GB 913561A GB 913561 A GB913561 A GB 913561A GB 958054 A GB958054 A GB 958054A
Authority
GB
United Kingdom
Prior art keywords
ammonia
pipe
gases
solution
absorber
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
GB913561A
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.)
United States Steel Corp
Original Assignee
United States 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
Priority claimed from US19280A external-priority patent/US3024090A/en
Application filed by United States Steel Corp filed Critical United States Steel Corp
Priority claimed from US149111A external-priority patent/US3186795A/en
Publication of GB958054A publication Critical patent/GB958054A/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
    • C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/28—Ammonium phosphates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/405—Polyphosphates of ammonium
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/02—Preparation, purification or separation of ammonia
    • C01C1/10—Separation of ammonia from ammonia liquors, e.g. gas liquors
    • 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
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Industrial Gases (AREA)
  • Physical Water Treatments (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Abstract

<PICT:0958054/C1/1> A method of recovering NH3 from coke-oven gases comprises introducing the gases by pipe 10 to a primary cooler 11, and cooling with an ammonia-liquor spray, conducting the gases from the top of 11 by pipe 15 to the bottom of absorber 16 where the gases ascend countercurrent to a scrubbing solution of ammonia and phosphoric acid supplied to the top of the absorber by pipe 17, delivering the ammonia liquor issuing from the bottom of 11 to a still 13 for steam rectification, and conducting the enriched solution and the condensed vapours from the still 13, via vessel 20 and pipe 23 to a stripping column 24. The acid contaminants e.g. H2S, HCN, CO2, and phenol, in the ammonia-water vapour emerging from the stripper 24 may be removed by washing the vapour with an aqueous solution of a strong alkali e.g. sodium, calcium, or magnesium hydroxide, also oils such as benzene, naphthalene, and pyridine may be removed by decanting. The ammonia and phosphoric acid solution may be represented by the formula (NH4)nH3-nPO4; thus the solution just prior to stripping contains 40% salts of average composition (NH4)1.9H1.1 PO4. The absorber may be a two- or three-stage spray tower and the stripping column may be a bubble-tray tower containing ten or more trays.ALSO:A method of recovering NH3 from coke-oven gases comprises introducing the gases by pipe 10 to a primary cooler 11, and cooling with an ammonia-liquor spray, conducting the gases from the top of 11 by pipe 15 to the bottom of absorber 16 where the gases ascend counter-current to a scrubbing solution of ammonia and phosphoric acid supplied to the top of the absorber by pipe 17, delivering the ammonia liquor issuing from the bottom of 11 to a still 13 for steam rectification, and conducting the enriched solution and the condensed vapours from the still 13, via vessel 20 and pipe 23 to a stripping column 24. The acid contaminants, e.g. H2S, HCN, CO2, and phenol, in the ammonia-water vapour emerging from the stripper 24 may be removed by washing the vapour with an aqueous solution of a strong alkali, e.g. sodium, calcium, or magnesium hydroxide, also oils such as benzene, naphthalene, and pyridine may be removed by decanting. The ammonia and phosphoric acid solution may be represented by the formula (NH4)nH3-nPO4; thus the solution jus prior to stripping contains 40% salts of average composition (NH4)1.9H1.1PO4. The absorber may be a two- or three-stage spray tower and the stripping column may be a bubble-tray tower containing ten or more trays.
GB913561A 1960-04-01 1961-03-13 Method of recovering ammonia from coke-oven gases Expired GB958054A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US19280A US3024090A (en) 1960-04-01 1960-04-01 Method of recovering ammonia from coke-oven gases
US149111A US3186795A (en) 1961-10-31 1961-10-31 Method of recovering ammonia

Publications (1)

Publication Number Publication Date
GB958054A true GB958054A (en) 1964-05-13

Family

ID=26692072

Family Applications (2)

Application Number Title Priority Date Filing Date
GB913561A Expired GB958054A (en) 1960-04-01 1961-03-13 Method of recovering ammonia from coke-oven gases
GB3972762A Expired GB1018003A (en) 1960-04-01 1962-10-19 Method of recovering ammonia

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3972762A Expired GB1018003A (en) 1960-04-01 1962-10-19 Method of recovering ammonia

Country Status (2)

Country Link
DE (2) DE1153733B (en)
GB (2) GB958054A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107916144A (en) * 2017-12-21 2018-04-17 中冶焦耐(大连)工程技术有限公司 A kind of primary cooler flusher and its application method with backwashing function
CN108373159A (en) * 2018-05-10 2018-08-07 江西铜鼓有色冶金化工有限责任公司 The retracting device and recovery method of ammonia during a kind of ammonium paratungstate production
CN109351132A (en) * 2018-11-15 2019-02-19 四川金象赛瑞化工股份有限公司 Gas absorption process, gas absorbing device and application thereof
CN113896265A (en) * 2021-11-02 2022-01-07 天津市创举科技股份有限公司 Ammonia distillation treatment process for residual ammonia water

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102190341B (en) * 2010-03-09 2012-12-26 中国石油化工股份有限公司 Stripping ammonia-removing method based on flash evaporation and heat pump technologies
CN104030316B (en) * 2014-05-30 2015-10-28 石家庄开发区德赛化工有限公司 The novel process of anhydrous ammonia produced by a kind of raw gas
CN113562743B (en) * 2021-08-19 2022-10-18 上海大学(浙江·嘉兴)新兴产业研究院 Ammonia gas concentration and recovery device, barium titanate production equipment and barium titanate production method
CN114797380B (en) * 2022-03-09 2023-03-31 铜陵泰富特种材料有限公司 System and method for efficiently washing ammonia with phosphoric acid and producing high-purity ammonia water

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR857242A (en) * 1939-07-04 1940-08-31 Financ De Lens Soc Ind Process for recovering ammoniacal vapors contained in a gas
US2797148A (en) * 1951-03-13 1957-06-25 Du Pont Recovery of nh3 from a gaseous mixture containing nh3 and hcn

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107916144A (en) * 2017-12-21 2018-04-17 中冶焦耐(大连)工程技术有限公司 A kind of primary cooler flusher and its application method with backwashing function
CN107916144B (en) * 2017-12-21 2023-06-16 中冶焦耐(大连)工程技术有限公司 Primary cooler spraying device with backwashing function and application method thereof
CN108373159A (en) * 2018-05-10 2018-08-07 江西铜鼓有色冶金化工有限责任公司 The retracting device and recovery method of ammonia during a kind of ammonium paratungstate production
CN109351132A (en) * 2018-11-15 2019-02-19 四川金象赛瑞化工股份有限公司 Gas absorption process, gas absorbing device and application thereof
CN113896265A (en) * 2021-11-02 2022-01-07 天津市创举科技股份有限公司 Ammonia distillation treatment process for residual ammonia water

Also Published As

Publication number Publication date
DE1153733B (en) 1963-09-05
GB1018003A (en) 1966-01-26
DE1195283B (en) 1965-06-24

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