FR2208702A1 - Sulphur cpds. removal from kiln gases - by oxidn. to sulphur trioxide and absorption in aq. ammonia - Google Patents

Sulphur cpds. removal from kiln gases - by oxidn. to sulphur trioxide and absorption in aq. ammonia

Info

Publication number
FR2208702A1
FR2208702A1 FR7243119A FR7243119A FR2208702A1 FR 2208702 A1 FR2208702 A1 FR 2208702A1 FR 7243119 A FR7243119 A FR 7243119A FR 7243119 A FR7243119 A FR 7243119A FR 2208702 A1 FR2208702 A1 FR 2208702A1
Authority
FR
France
Prior art keywords
sulphur
cpds
ammonia
oxidn
absorption
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
FR7243119A
Other languages
French (fr)
Other versions
FR2208702B1 (en
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.)
IFP Energies Nouvelles IFPEN
Original Assignee
IFP Energies Nouvelles IFPEN
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 IFP Energies Nouvelles IFPEN filed Critical IFP Energies Nouvelles IFPEN
Priority to FR7243119A priority Critical patent/FR2208702A1/en
Publication of FR2208702A1 publication Critical patent/FR2208702A1/en
Application granted granted Critical
Publication of FR2208702B1 publication Critical patent/FR2208702B1/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
    • B01D53/52—Hydrogen sulfide
    • B01D53/523—Mixtures of hydrogen sulfide and sulfur oxides

Landscapes

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

Abstract

Kiln gases contg. S cpds., e.g. H2S, SO2, COS and CS2, are treated by (a) catalytically oxidising the cpds. to SO2 and then to SO3; and (b) absorbing the SO3 with water and aq. ammonia at 50-120, pref. 70 degrees C, at 1-4, pref. 1 atmos. and at a NH3:SO3 ratio of =2:1. The effluent from (b) is concentrated and treated with a reducing agent at high temp. to yield gaseous SO2. The NH3 and SO2 from this stage can be treated with H2S to yield S which is recovered, and NH3 which is recycled to (b).
FR7243119A 1972-12-04 1972-12-04 Sulphur cpds. removal from kiln gases - by oxidn. to sulphur trioxide and absorption in aq. ammonia Granted FR2208702A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7243119A FR2208702A1 (en) 1972-12-04 1972-12-04 Sulphur cpds. removal from kiln gases - by oxidn. to sulphur trioxide and absorption in aq. ammonia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7243119A FR2208702A1 (en) 1972-12-04 1972-12-04 Sulphur cpds. removal from kiln gases - by oxidn. to sulphur trioxide and absorption in aq. ammonia

Publications (2)

Publication Number Publication Date
FR2208702A1 true FR2208702A1 (en) 1974-06-28
FR2208702B1 FR2208702B1 (en) 1976-04-23

Family

ID=9108185

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7243119A Granted FR2208702A1 (en) 1972-12-04 1972-12-04 Sulphur cpds. removal from kiln gases - by oxidn. to sulphur trioxide and absorption in aq. ammonia

Country Status (1)

Country Link
FR (1) FR2208702A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016198369A1 (en) * 2015-06-12 2016-12-15 Haldor Topsøe A/S Hydrogen sulfide abatement via removal of sulfur trioxide

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1087028A (en) * 1965-07-03 1967-10-11 Toyo Koatsu Ind Inc Method of treating exhaust gases containing sulphur dioxide

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1087028A (en) * 1965-07-03 1967-10-11 Toyo Koatsu Ind Inc Method of treating exhaust gases containing sulphur dioxide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016198369A1 (en) * 2015-06-12 2016-12-15 Haldor Topsøe A/S Hydrogen sulfide abatement via removal of sulfur trioxide

Also Published As

Publication number Publication date
FR2208702B1 (en) 1976-04-23

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Legal Events

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