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FR2393601A1 - PROCESS FOR THE ELIMINATION OF SULFUROUS ANHYDRIDE FROM FUMES CONTAINING IT - Google Patents

PROCESS FOR THE ELIMINATION OF SULFUROUS ANHYDRIDE FROM FUMES CONTAINING IT

Info

Publication number
FR2393601A1
FR2393601A1 FR787816695A FR7816695A FR2393601A1 FR 2393601 A1 FR2393601 A1 FR 2393601A1 FR 787816695 A FR787816695 A FR 787816695A FR 7816695 A FR7816695 A FR 7816695A FR 2393601 A1 FR2393601 A1 FR 2393601A1
Authority
FR
France
Prior art keywords
sulfur dioxide
elimination
oxygen
aqueous solution
relates
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.)
Granted
Application number
FR787816695A
Other languages
French (fr)
Other versions
FR2393601B1 (en
Inventor
Akio Kobayashi
Kunihide Yaguchi
Yushi Nezu
Masakazu Takaiwa
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.)
Kureha Corp
Original Assignee
Kureha 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 JP52066545A external-priority patent/JPS6015375B2/en
Priority claimed from JP6654677A external-priority patent/JPS541275A/en
Application filed by Kureha Corp filed Critical Kureha Corp
Publication of FR2393601A1 publication Critical patent/FR2393601A1/en
Application granted granted Critical
Publication of FR2393601B1 publication Critical patent/FR2393601B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F11/00—Compounds of calcium, strontium, or barium
    • C01F11/46—Sulfates
    • C01F11/464—Sulfates of Ca from gases containing sulfur oxides

Landscapes

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

Abstract

La présente invention a pour objet un procédé pour l'élimination d'anhydride sulfureux de fumées le contenant. Elle est caractérisée en ce qu'on fait entrer l'effluent gazeux contenant de l'anhydride sulfureux au contact d'une solution aqueuse contenant un sel alcalin d'un acide organique et du gypse cristallin solide, et en ce qu'on insuffle ensuite dans la solution aqueuse qui a absorbé l'anhydride sulfureux de l'oxygène, de l'air, ou un autre gaz contenant de l'oxygène, tout en maintenant le pH de ladite solution dans une plage comprise entre 5 et 9 par addition d'un composé de calcium. Elle se rapporte à des systèmes d'épuration de fumées.The present invention relates to a process for removing sulfur dioxide from fumes containing it. It is characterized in that the gaseous effluent containing sulfur dioxide is brought into contact with an aqueous solution containing an alkali salt of an organic acid and solid crystalline gypsum, and in that then blown in the aqueous solution which has absorbed sulfur dioxide from oxygen, air, or other oxygen-containing gas, while maintaining the pH of said solution within a range of 5 to 9 by addition of 'a calcium compound. It relates to flue gas purification systems.

FR787816695A 1977-06-06 1978-06-05 PROCESS FOR THE ELIMINATION OF SULFUROUS ANHYDRIDE FROM FUMES CONTAINING IT Granted FR2393601A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP52066545A JPS6015375B2 (en) 1977-06-06 1977-06-06 How to remove sulfur dioxide gas
JP6654677A JPS541275A (en) 1977-06-06 1977-06-06 Desulfurization method

Publications (2)

Publication Number Publication Date
FR2393601A1 true FR2393601A1 (en) 1979-01-05
FR2393601B1 FR2393601B1 (en) 1982-12-10

Family

ID=26407742

Family Applications (1)

Application Number Title Priority Date Filing Date
FR787816695A Granted FR2393601A1 (en) 1977-06-06 1978-06-05 PROCESS FOR THE ELIMINATION OF SULFUROUS ANHYDRIDE FROM FUMES CONTAINING IT

Country Status (3)

Country Link
DE (1) DE2824247C3 (en)
FR (1) FR2393601A1 (en)
GB (1) GB1598167A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005270A1 (en) * 1978-05-08 1979-11-14 BASF Aktiengesellschaft Separation of sulfur dioxide from waste waters and on occasion from waste gases

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090027A (en) * 1983-10-25 1985-05-21 Kureha Chem Ind Co Ltd Waste gas desulfurization method
DE3428108C1 (en) * 1984-07-30 1986-04-03 Hölter, Heinz, Dipl.-Ing., 4390 Gladbeck Process for scrubbing SO2 and/or NOX downstream of fossil fuel power stations

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152666A1 (en) * 1971-09-07 1973-04-27 Monsanto Enviro Chem Syst Sulphur dioxide/trioxide removal - from waste gases using amine soln and regeneration with lime
FR2317220A1 (en) * 1975-06-23 1977-02-04 Kureha Chemical Ind Co Ltd PROCESS FOR REMOVING SULFUROUS ANHYDRIDE FROM EXHAUST GASES

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2152666A1 (en) * 1971-09-07 1973-04-27 Monsanto Enviro Chem Syst Sulphur dioxide/trioxide removal - from waste gases using amine soln and regeneration with lime
FR2317220A1 (en) * 1975-06-23 1977-02-04 Kureha Chemical Ind Co Ltd PROCESS FOR REMOVING SULFUROUS ANHYDRIDE FROM EXHAUST GASES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0005270A1 (en) * 1978-05-08 1979-11-14 BASF Aktiengesellschaft Separation of sulfur dioxide from waste waters and on occasion from waste gases

Also Published As

Publication number Publication date
DE2824247A1 (en) 1978-12-14
DE2824247C3 (en) 1981-09-24
DE2824247B2 (en) 1980-07-17
GB1598167A (en) 1981-09-16
FR2393601B1 (en) 1982-12-10

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Legal Events

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