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FR2427299A1 - Sulphur recovery from gas contg. hydrogen sulphide in low concn. - by Claus process using absorption and desorption for concn. of sulphur di:oxide stream - Google Patents

Sulphur recovery from gas contg. hydrogen sulphide in low concn. - by Claus process using absorption and desorption for concn. of sulphur di:oxide stream

Info

Publication number
FR2427299A1
FR2427299A1 FR7912607A FR7912607A FR2427299A1 FR 2427299 A1 FR2427299 A1 FR 2427299A1 FR 7912607 A FR7912607 A FR 7912607A FR 7912607 A FR7912607 A FR 7912607A FR 2427299 A1 FR2427299 A1 FR 2427299A1
Authority
FR
France
Prior art keywords
stream
concn
sulphur
claus process
oxidn
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
FR7912607A
Other languages
French (fr)
Other versions
FR2427299B1 (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.)
Davy International AG
Original Assignee
Davy International AG
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 Davy International AG filed Critical Davy International AG
Publication of FR2427299A1 publication Critical patent/FR2427299A1/en
Application granted granted Critical
Publication of FR2427299B1 publication Critical patent/FR2427299B1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/02—Preparation of sulfur; Purification
    • C01B17/04—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides
    • C01B17/0404—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by processes comprising a dry catalytic conversion of hydrogen sulfide-containing gases, e.g. the Claus process

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

Recovery of S from gases contg. 1-10 vol.% H2S involves oxidn. of the H2S in one side stream, to SO2 and combination with the other side stream for catalytic Claus reaction and deposition of the S formed. Improvement is that the SO2 is scrubbed from the oxidised stream and the scrubbing liquor is regenerated, forming a conc. SO2 gas stream, which is combined with the other stream contg. H2S, whilst the waste gas from the Claus process is passed to the oxidn. stage. The SO2 is adsorbed in an aq. basic soln., esp. Na or ammonium sulphite soln., which is regenerated thermally. The Claus reaction is carried out in several (2) stages at 180-300 degrees C. The H2S can also be absorbed and the liquor regenerated to give a relatively large stream with a low H2S content (1-3 vol.%), which passes to oxidn., and a smaller stream with a higher H2S content (6-10 vol.%), which passes directly to the Claus process. S yields of 98.5-99% or over can be obtd. from gases with alow H2S content or min. investment.
FR7912607A 1978-06-03 1979-05-17 PROCESS FOR RECOVERING SULFUR FROM GASES CONTAINING HYDROGEN SULFIDE Expired FR2427299B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19782824471 DE2824471C3 (en) 1978-06-03 1978-06-03 Process for the production of sulfur from gases containing hydrogen sulphide

Publications (2)

Publication Number Publication Date
FR2427299A1 true FR2427299A1 (en) 1979-12-28
FR2427299B1 FR2427299B1 (en) 1985-10-04

Family

ID=6040988

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7912607A Expired FR2427299B1 (en) 1978-06-03 1979-05-17 PROCESS FOR RECOVERING SULFUR FROM GASES CONTAINING HYDROGEN SULFIDE

Country Status (3)

Country Link
JP (1) JPS54159394A (en)
DE (1) DE2824471C3 (en)
FR (1) FR2427299B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013578A1 (en) * 1992-12-17 1994-06-23 Hoogovens Groep Bv Method and apparatus for treating a flow of gas containing oxidized sulphur compounds
US10689254B1 (en) * 2019-09-08 2020-06-23 Mahin Rameshni Methods for SO2 recoveries from sulfur plants

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4442083A (en) * 1982-11-04 1984-04-10 Stauffer Chemical Company Method of desulfurizing waste gases containing sulfur dioxide
US5304361A (en) * 1992-06-26 1994-04-19 Union Carbide Chemicals & Plastics Technology Corporation Removal of hydrogen sulfide

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1951021A1 (en) * 1968-10-09 1970-04-23 Exxon Research Engineering Co Process for the extraction of sulfur
FR2205476A1 (en) * 1972-11-03 1974-05-31 Metallgesellschaft Ag
US3904735A (en) * 1972-03-07 1975-09-09 Union Carbide Corp Process for the selective removal of sulfur dioxide from effluent gases
FR2384711A1 (en) * 1977-03-25 1978-10-20 Union Carbide Corp PROCESS FOR RECOVERING SULFUR FROM GASEOUS PRODUCTS CONTAINING HYDROGEN SULPHIDE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1951021A1 (en) * 1968-10-09 1970-04-23 Exxon Research Engineering Co Process for the extraction of sulfur
US3904735A (en) * 1972-03-07 1975-09-09 Union Carbide Corp Process for the selective removal of sulfur dioxide from effluent gases
FR2205476A1 (en) * 1972-11-03 1974-05-31 Metallgesellschaft Ag
FR2384711A1 (en) * 1977-03-25 1978-10-20 Union Carbide Corp PROCESS FOR RECOVERING SULFUR FROM GASEOUS PRODUCTS CONTAINING HYDROGEN SULPHIDE

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994013578A1 (en) * 1992-12-17 1994-06-23 Hoogovens Groep Bv Method and apparatus for treating a flow of gas containing oxidized sulphur compounds
TR27737A (en) * 1992-12-17 1995-07-07 Hoogovens Groep Bv A method and apparatus for treating a gas flow containing oxidized sulfur compounds.
US5609841A (en) * 1992-12-17 1997-03-11 Hoogovens Staal, B.V. Method and apparatus for treating a flow of gas containing oxidized sulphur compounds
US10689254B1 (en) * 2019-09-08 2020-06-23 Mahin Rameshni Methods for SO2 recoveries from sulfur plants

Also Published As

Publication number Publication date
DE2824471B2 (en) 1980-06-26
FR2427299B1 (en) 1985-10-04
DE2824471C3 (en) 1982-01-28
JPS54159394A (en) 1979-12-17
DE2824471A1 (en) 1979-12-06

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ST Notification of lapse