GB1379101A - Method for removing sulphur dioxide from exhaust gases - Google Patents

Method for removing sulphur dioxide from exhaust gases

Info

Publication number
GB1379101A
GB1379101A GB2419472A GB2419472A GB1379101A GB 1379101 A GB1379101 A GB 1379101A GB 2419472 A GB2419472 A GB 2419472A GB 2419472 A GB2419472 A GB 2419472A GB 1379101 A GB1379101 A GB 1379101A
Authority
GB
United Kingdom
Prior art keywords
circulating
solution
exhaust gases
optionally
gases
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
GB2419472A
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.)
JFE Engineering Corp
Original Assignee
Nippon Kokan Ltd
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 Nippon Kokan Ltd filed Critical Nippon Kokan Ltd
Publication of GB1379101A publication Critical patent/GB1379101A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B01D53/46—Removing components of defined structure
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C1/00—Ammonia; Compounds thereof
    • C01C1/24—Sulfates of ammonium
    • C01C1/245—Preparation from compounds containing nitrogen and sulfur
    • C01C1/246—Preparation from compounds containing nitrogen and sulfur from sulfur-containing ammonium compounds
    • C01C1/247—Preparation from compounds containing nitrogen and sulfur from sulfur-containing ammonium compounds by oxidation with free oxygen

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treating Waste Gases (AREA)

Abstract

1379101 Removing SO 2 , NH 2 and H 2 S from gases NIPPON KOKAN KK 23 May 1972 [8 June 1971] 24194/72 Heading C1A SO 2 is removed from exhaust gases and NH 3 (and optionally H 2 S), is removed from coke oven gases by (a) contacting SO 2 -containing exhaust gases with a first circulating aqueous solution of NH 4 SO 3 , (NH 4 )HSO 3 and (NH 4 ) 2 SO 4 having a pH of 5À8-6À5 to dissolve part of the SO 2 , (b) contacting NH 3 (and optionally H 2 S)- containing coke oven gas with a second circulating aqueous solution of the same ammonium salts having a pH of 6À3-7À0 to dissolve part of the NH 3 (and optionally the H 2 S), (c) introducing part of the first circulating solution into the second circulating solution and at the same time introducing part of the second solution into the first, and (d) withdrawing part of the circulating solutions and introducing water to maintain the total amount of circulating liquid constant. The total conch. of ammonium salts in each circulating solution is preferably 30-40% by wt. The withdrawn solution may be oxidized to convert the sulphite and bisulphite into sulphate which is then recovered. The exhaust gases may be obtained from a boiler furnace or an iron ore sintering process.
GB2419472A 1971-06-08 1972-05-23 Method for removing sulphur dioxide from exhaust gases Expired GB1379101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP46039800A JPS5111593B1 (en) 1971-06-08 1971-06-08

Publications (1)

Publication Number Publication Date
GB1379101A true GB1379101A (en) 1975-01-02

Family

ID=12563016

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2419472A Expired GB1379101A (en) 1971-06-08 1972-05-23 Method for removing sulphur dioxide from exhaust gases

Country Status (9)

Country Link
US (1) US3822339A (en)
JP (1) JPS5111593B1 (en)
BE (1) BE784594A (en)
DE (1) DE2227952C3 (en)
FR (1) FR2140419B1 (en)
GB (1) GB1379101A (en)
IT (1) IT958239B (en)
NL (1) NL145199B (en)
SE (1) SE397922B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100391578C (en) * 2006-06-16 2008-06-04 中国科学院南海海洋研究所 Air-purifying material and its preparation
CN103623689A (en) * 2013-12-12 2014-03-12 北京博源恒升高科技有限公司 Method for removing SOx in gases with polyol complex solution

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2333518C3 (en) * 1973-07-02 1981-02-26 Dr. C. Otto & Comp. Gmbh, 4630 Bochum Process for removing ammonia from gases
JPS5636971B2 (en) * 1974-05-08 1981-08-27
US3957951A (en) * 1974-08-23 1976-05-18 International Telephone And Telegraph Corporation Process for removing contaminants from hot waste gas streams
US4043768A (en) * 1976-04-05 1977-08-23 Apollo Chemical Corporation Method of conditioning flue gas to electrostatic precipitator
US4042348A (en) * 1976-08-02 1977-08-16 Apollo Chemical Corporation Method of conditioning flue gas to electrostatic precipitator
US9195879B1 (en) 2014-08-31 2015-11-24 Qualcomm Incorporated Air/object determination for biometric sensors
US9582705B2 (en) 2014-08-31 2017-02-28 Qualcomm Incorporated Layered filtering for biometric sensors
US9665763B2 (en) * 2014-08-31 2017-05-30 Qualcomm Incorporated Finger/non-finger determination for biometric sensors
CN114904874B (en) * 2021-05-08 2023-05-23 宜兴大平杆塔制造有限公司 Application method of zinc fume collecting device for zinc plating workshop

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100391578C (en) * 2006-06-16 2008-06-04 中国科学院南海海洋研究所 Air-purifying material and its preparation
CN103623689A (en) * 2013-12-12 2014-03-12 北京博源恒升高科技有限公司 Method for removing SOx in gases with polyol complex solution
CN103623689B (en) * 2013-12-12 2016-06-29 北京博源恒升高科技有限公司 The method of SOx in polyhydric alcohol composite solution elimination gas
US10207218B2 (en) 2013-12-12 2019-02-19 Beijing Boyuan Hengsheng High-Technology Co., Ltd Method for removing SOx from gas using polyol composite solution

Also Published As

Publication number Publication date
US3822339A (en) 1974-07-02
FR2140419B1 (en) 1976-12-03
JPS5111593B1 (en) 1976-04-12
DE2227952C3 (en) 1975-02-20
SE397922B (en) 1977-11-28
IT958239B (en) 1973-10-20
DE2227952A1 (en) 1973-01-04
NL145199B (en) 1975-03-17
NL7207578A (en) 1972-12-12
FR2140419A1 (en) 1973-01-19
DE2227952B2 (en) 1974-06-27
BE784594A (en) 1972-10-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years