FR2202032A1 - Reductively treating two gas streams - contg hydrogen sulphide and sulphur dioxide to yield s - Google Patents

Reductively treating two gas streams - contg hydrogen sulphide and sulphur dioxide to yield s

Info

Publication number
FR2202032A1
FR2202032A1 FR7222765A FR7222765A FR2202032A1 FR 2202032 A1 FR2202032 A1 FR 2202032A1 FR 7222765 A FR7222765 A FR 7222765A FR 7222765 A FR7222765 A FR 7222765A FR 2202032 A1 FR2202032 A1 FR 2202032A1
Authority
FR
France
Prior art keywords
contg
stream
gas streams
treating
absorbent
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
FR7222765A
Other languages
French (fr)
Other versions
FR2202032B1 (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.)
Universal Oil Products Co
Original Assignee
Universal Oil Products Co
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 Universal Oil Products Co filed Critical Universal Oil Products Co
Priority to FR7222765A priority Critical patent/FR2202032A1/en
Publication of FR2202032A1 publication Critical patent/FR2202032A1/en
Application granted granted Critical
Publication of FR2202032B1 publication Critical patent/FR2202032B1/fr
Granted legal-status Critical Current

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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
    • C01B17/06—Preparation of sulfur; Purification from non-gaseous sulfides or materials containing such sulfides, e.g. ores
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

Integrated process for the purification of two S-contg. gas streams, specifically one contg. H2S and one SO2, with the subsequent prodn. of elemental sulphur, by (a) treating the H2S-contg. stream with an absorbent soln. containing an alkali to produce a sulphide-contg. effluent stream, (b) treating the SO2-contg. stream with a similar alkali soln. and a reducing agent (comprising finely divided S, a poly sulphide or a water-soluble sulphide) to give a water-soluble thiosulphate-contg. effluent stream, (c) combining the effluent streams from (a) and (b) and reducing them to form a polysulphide - contg. effluent stream (d) decomposing the polysulphide contg. stream to form elemental S, H2S and regenerated absorbent, (e) recycling at least a part of the H2s to step (a), and (f) recycling separate portions of the regenerated absorbent to steps (a) and (b). Simple and effective process without mixing the two gas streams and with the minimum prodn. of sulphate by-products. The absorbent solns. are easy to regenerate, under mild comditions, without the use of catalysts.
FR7222765A 1972-06-23 1972-06-23 Reductively treating two gas streams - contg hydrogen sulphide and sulphur dioxide to yield s Granted FR2202032A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7222765A FR2202032A1 (en) 1972-06-23 1972-06-23 Reductively treating two gas streams - contg hydrogen sulphide and sulphur dioxide to yield s

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7222765A FR2202032A1 (en) 1972-06-23 1972-06-23 Reductively treating two gas streams - contg hydrogen sulphide and sulphur dioxide to yield s

Publications (2)

Publication Number Publication Date
FR2202032A1 true FR2202032A1 (en) 1974-05-03
FR2202032B1 FR2202032B1 (en) 1974-12-27

Family

ID=9100696

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7222765A Granted FR2202032A1 (en) 1972-06-23 1972-06-23 Reductively treating two gas streams - contg hydrogen sulphide and sulphur dioxide to yield s

Country Status (1)

Country Link
FR (1) FR2202032A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE535737A (en) * 1955-06-02
GB239846A (en) * 1924-09-10 1925-11-26 Oerkla Grube Aktiebolag Process of treating gases containing sulphuretted hydrogen and sulphur dioxide
GB1144071A (en) * 1965-02-10 1969-03-05 Grillo Werke Ag Process for the removal of sulphur-containing compounds from industrial gases

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB239846A (en) * 1924-09-10 1925-11-26 Oerkla Grube Aktiebolag Process of treating gases containing sulphuretted hydrogen and sulphur dioxide
BE535737A (en) * 1955-06-02
GB1144071A (en) * 1965-02-10 1969-03-05 Grillo Werke Ag Process for the removal of sulphur-containing compounds from industrial gases

Also Published As

Publication number Publication date
FR2202032B1 (en) 1974-12-27

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