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 sInfo
- 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
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
- C01B17/06—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.
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)
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 |
-
1972
- 1972-06-23 FR FR7222765A patent/FR2202032A1/en active Granted
Patent Citations (3)
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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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |