GB1452970A - Conversion of sulphur dioxide to sulphur - Google Patents
Conversion of sulphur dioxide to sulphurInfo
- Publication number
- GB1452970A GB1452970A GB6028073A GB6028073A GB1452970A GB 1452970 A GB1452970 A GB 1452970A GB 6028073 A GB6028073 A GB 6028073A GB 6028073 A GB6028073 A GB 6028073A GB 1452970 A GB1452970 A GB 1452970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- gas stream
- sulphur
- sulphur dioxide
- mole ratio
- rich
- 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.)
- Expired
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
-
- 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
- C01B17/0473—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by reaction of sulfur dioxide or sulfur trioxide containing gases with reducing agents other than hydrogen sulfide
- C01B17/0478—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by reaction of sulfur dioxide or sulfur trioxide containing gases with reducing agents other than hydrogen sulfide with hydrocarbons or mixtures containing them
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
1452970 Removing SO 2 ; sulphur EXXON RESEARCH & ENG CO 31 Dec 1973 [2 Jan 1973] 60280/73 Heading C1A A process for converting to elemental sulphur the sulphur dioxide in the sulphur dioxide-rich regeneration off-gas stream obtained from a flue gas desulphurization plant comprises: continuously introducing a hydrogen-rich reducing gas stream and at least part of said sulphurdioxide-rich gas stream into a thermal reactor; thermally (i.e. non-catalytically) reacting said gas streams at a temperature in excess of 650‹ C. in said thermal reactor to produce a process gas stream containing elemental sulphur, hydrogen sulphide and unreacted sulphur dioxide; cooling said process gas stream to condense elemental sulphur therefrom; introducing said process gas stream together with the remaining part (if any) of the sulphurdioxide-rich gas stream into a catalytic converter, the gases entering said catalytic converter having an H 2 S/SO 2 mole ratio of about 2/1; and therein catalytically converting the hydrogen sulphide and sulphur dioxide in said process gas stream to elemental sulphur, cooling the gas stream, and removing condensed elemental sulphur therefrom. The mole ratio of hydrogen sulphide to sulphur dioxide in the process gas stream is maintained at substantially 2 : 1 by suitable adjustment of the flow of the reducing gas. Preferably, the mole ratio of reductant to sulphur dioxide in the feed gas streams is approximately 2 : 1; the feed gases are preheated to result in a reaction temperature in the thermal reactor of at least 650‹ C. which temperature is then maintained without the addition of extraneous heat; the catalytic conversion stage is carried out in a series of catalytic converters; and the feed of reducing gas to the thermal reactor is controlled in accordance with the mole ratio of hydrogen sulphide to sulphur dioxide in the effluent gas from the last catalytic converter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32031673A | 1973-01-02 | 1973-01-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1452970A true GB1452970A (en) | 1976-10-20 |
Family
ID=23245849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6028073A Expired GB1452970A (en) | 1973-01-02 | 1973-12-31 | Conversion of sulphur dioxide to sulphur |
Country Status (8)
| Country | Link |
|---|---|
| JP (1) | JPS4998395A (en) |
| BE (1) | BE809338A (en) |
| CA (1) | CA1003191A (en) |
| DE (1) | DE2365116C2 (en) |
| FR (1) | FR2212290B1 (en) |
| GB (1) | GB1452970A (en) |
| IT (1) | IT1002468B (en) |
| NL (1) | NL176929C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830829A (en) * | 1987-09-04 | 1989-05-16 | Mobil Oil Corporation | Conversion of aluminum-mercury amalgam and incidental mercury in contact with aluminum alloy surfaces to harmless compounds |
| RU2474533C1 (en) * | 2011-07-15 | 2013-02-10 | Открытое акционерное общество "Гипрогазоочистка" | Method of producing elementary sulphur from sulphur dioxide-containing exhaust gas |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5163392A (en) * | 1974-09-30 | 1976-06-01 | Dafuii Hoerugasu Gmbh | So2 ganjugasukaraiooeruhoho |
| DE2613343C3 (en) * | 1976-03-29 | 1980-08-28 | Davy International Ag, 6000 Frankfurt | Process for the production of sulfur from gases containing SO2 |
| DE2759049B2 (en) * | 1977-01-05 | 1980-08-14 | Hitachi, Ltd., Tokio | Process for the removal and recovery of H2 S from coal gas |
| US4207304A (en) * | 1977-06-27 | 1980-06-10 | The Ralph M. Parsons Company | Process for sulfur production |
| DE2923704A1 (en) * | 1979-06-12 | 1980-12-18 | Bergwerksverband Gmbh | METHOD FOR REDUCING SO LOW 2 - GASES TO ELEMENTAL SULFUR |
| DE3036132A1 (en) * | 1980-09-25 | 1982-05-06 | Metallgesellschaft Ag, 6000 Frankfurt | METHOD FOR REDUCING THE SULFUR CONTENT OF THE EXHAUST GAS RECEIVED FROM SULFUR |
| JPS6265909A (en) * | 1985-09-13 | 1987-03-25 | Mitsui Miike Kakoki Kk | Method and apparatus for treating gas containing sulfur dioxide |
| DE3628870A1 (en) * | 1985-12-17 | 1987-06-19 | Linde Ag | Process for recovery of elemental sulphur |
| RU2478567C2 (en) * | 2011-07-21 | 2013-04-10 | Открытое акционерное общество "Гипрогазоочистка" | Method of producing sulphur from sulphur dioxide-containing flue gases |
| FR3030302B1 (en) | 2014-12-23 | 2018-08-10 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | THERMAL REDUCTION OF SULFUR |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2148258A (en) * | 1934-11-12 | 1939-02-21 | Gen Chemical Corp | Production of sulphur |
| US3199955A (en) * | 1962-08-20 | 1965-08-10 | Texas Gulf Sulphur Co | Process of reducing sulphur dioxide to elemental sulphur |
| US3615221A (en) * | 1969-04-21 | 1971-10-26 | Du Pont | Process for reduction of sulfur dioxide with hydrocarbon vapor |
| BE759295A (en) * | 1969-12-09 | 1971-04-30 | Allied Chem | PROCESS FOR TREATMENT OF SULPHUROUS ANHYDRIDE WITH A REDUCING GAS AND NEW PRODUCTS THUS OBTAINED |
-
1973
- 1973-12-26 JP JP48144147A patent/JPS4998395A/ja active Pending
- 1973-12-28 FR FR7346867A patent/FR2212290B1/fr not_active Expired
- 1973-12-29 DE DE19732365116 patent/DE2365116C2/en not_active Expired
- 1973-12-31 IT IT3244673A patent/IT1002468B/en active
- 1973-12-31 CA CA189,246A patent/CA1003191A/en not_active Expired
- 1973-12-31 GB GB6028073A patent/GB1452970A/en not_active Expired
-
1974
- 1974-01-02 BE BE139469A patent/BE809338A/en not_active IP Right Cessation
- 1974-01-02 NL NL7400022A patent/NL176929C/en not_active IP Right Cessation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4830829A (en) * | 1987-09-04 | 1989-05-16 | Mobil Oil Corporation | Conversion of aluminum-mercury amalgam and incidental mercury in contact with aluminum alloy surfaces to harmless compounds |
| RU2474533C1 (en) * | 2011-07-15 | 2013-02-10 | Открытое акционерное общество "Гипрогазоочистка" | Method of producing elementary sulphur from sulphur dioxide-containing exhaust gas |
Also Published As
| Publication number | Publication date |
|---|---|
| NL176929B (en) | 1985-02-01 |
| DE2365116C2 (en) | 1985-09-19 |
| IT1002468B (en) | 1976-05-20 |
| NL176929C (en) | 1985-07-01 |
| JPS4998395A (en) | 1974-09-18 |
| BE809338A (en) | 1974-07-02 |
| FR2212290A1 (en) | 1974-07-26 |
| NL7400022A (en) | 1974-07-04 |
| FR2212290B1 (en) | 1980-03-28 |
| CA1003191A (en) | 1977-01-11 |
| DE2365116A1 (en) | 1974-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |
Effective date: 19931230 |