IE35451B1 - A process for reducing the total sulphur content of claus off-gases - Google Patents
A process for reducing the total sulphur content of claus off-gasesInfo
- Publication number
- IE35451B1 IE35451B1 IE899/71A IE89971A IE35451B1 IE 35451 B1 IE35451 B1 IE 35451B1 IE 899/71 A IE899/71 A IE 899/71A IE 89971 A IE89971 A IE 89971A IE 35451 B1 IE35451 B1 IE 35451B1
- Authority
- IE
- Ireland
- Prior art keywords
- gases
- claus
- hydrogen
- absorbent
- sulphide
- Prior art date
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
-
- 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
- C01B17/0456—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 the hydrogen sulfide-containing gas being a Claus process tail gas
-
- 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
- C01B17/16—Hydrogen sulfides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/08—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors
- C10K1/10—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids
- C10K1/12—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors
- C10K1/14—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic
- C10K1/143—Purifying combustible gases containing carbon monoxide by washing with liquids; Reviving the used wash liquors with aqueous liquids alkaline-reacting including the revival of the used wash liquors organic containing amino groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- Treating Waste Gases (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
1356289 Desulphurizing Claus off-gases SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 15 July 1971 [17 July 1970] 33217/71 Heading C1A Off-gases containing sulphur dioxide from a Claus kiln are passed at a temperature above 175 C. together with a gas containing free hydrogen and/or free carbon monoxide over a sulphided Group VI and/or Group VIII metal catalyst supported on an inorganic oxide carrier, the reduced gases being then passed through a liquid and regeneratable absorbent for hydrogen sulphide and the unabsorbed portion, optionally after incineration, is discharged to the atmosphere, the hydrogen sulphide enriched absorbent being regenerated for re-use and the hydrogen sulphide rich gas mixture liberated being passed to a Claus process. Group VI metals specified are molybdenum, tungsten and chromium; Group VIII metals specified are iron, cobalt and nickel. The inorganic oxide carrier may be alumina, silica, magnesia, boron oxide, thoria, zirconia or a mixture of these compounds. The sulphiding may be carried out by use of the Claus off-gases themselves, the preferred temperature being between 300 and 400 C. The reducing gas preferably contains at least 20% by volume of free hydrogen or an equivalent amount of hydrogen/carbon monoxide mixture. Should any carbonyl sulphide be formed when carbon monoxide is used as the reducing gas it may be decomposed in known manner by passage over a heated bed of alumina. Amines and substituted amines in aqueous solution are the preferred absorbents, in particular alkali metal salts of dialkyl substituted amino acids (e.g. potassium dimethylamino-acetate) and polyalkanolamines such as di- or tri-ethanolamine and diisopropanolamine. After absorption, the H 2 S enriched absorbent is regenerated by heating and/or stripping, the H 2 S enriched gas mixture being recycled to the Claus plant and the regenerated absorbent re-used. Using high gas velocities at temperatures lower than 40 C. the selectivity of the H 2 S/CO 2 ratio is enhanced, CO 2 being usually present in the off-gases when the Claus process is operated using air. Other gases present which may be reduced to hydrogen sulphide by the present process include carbonyl sulphide and carbon disulphide.
[GB1356289A]
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NLAANVRAGE7010604,A NL171144B (en) | 1970-07-17 | 1970-07-17 | PROCESS FOR REDUCING THE TOTAL SULFUR CONTENT OF CLAUSE GASES. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE35451L IE35451L (en) | 1972-01-17 |
| IE35451B1 true IE35451B1 (en) | 1976-02-18 |
Family
ID=19810608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE899/71A IE35451B1 (en) | 1970-07-17 | 1971-07-15 | A process for reducing the total sulphur content of claus off-gases |
Country Status (18)
| Country | Link |
|---|---|
| JP (1) | JPS5716846B1 (en) |
| AT (1) | AT308768B (en) |
| AU (1) | AU459768B2 (en) |
| BE (1) | BE770058A (en) |
| CH (1) | CH580982A5 (en) |
| CS (1) | CS179372B2 (en) |
| DE (1) | DE2135522C2 (en) |
| DK (1) | DK149328C (en) |
| ES (1) | ES393290A1 (en) |
| FI (1) | FI56320C (en) |
| FR (1) | FR2101724A5 (en) |
| GB (1) | GB1356289A (en) |
| IE (1) | IE35451B1 (en) |
| IT (1) | IT941574B (en) |
| NL (1) | NL171144B (en) |
| NO (1) | NO132088C (en) |
| SU (1) | SU751318A3 (en) |
| ZA (1) | ZA714698B (en) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7310929A (en) * | 1973-08-08 | 1974-01-25 | ||
| FR2295784A1 (en) * | 1974-12-27 | 1976-07-23 | Inst Francais Du Petrole | PROCESS FOR DEPURING A GAS CONTAINING SULFUR COMPOUNDS |
| GB1470950A (en) * | 1976-03-08 | 1977-04-21 | Shell Int Research | Process for working-up hydrogen sulphide-containing gases |
| DE2648190C3 (en) * | 1976-10-25 | 1980-02-21 | Metallgesellschaft Ag, 6000 Frankfurt | Process for the production of sulfur by the Claus process |
| GB1563251A (en) * | 1976-12-07 | 1980-03-26 | Shell Int Research | Process for working hydrogen suphidecontaining gases |
| NL7701174A (en) * | 1977-02-04 | 1978-08-08 | Shell Int Research | PROCESS FOR PREPARING A GAS MIX WITH DESIRED H2S / CO2 RATIO. |
| FR2425886A1 (en) * | 1978-05-16 | 1979-12-14 | Elf Aquitaine | PROCESS FOR PURIFYING INDUSTRIAL WASTE GASES CONTAINING LOW CONCENTRATIONS OF SULFUR COMPOUNDS |
| NL186377C (en) | 1978-05-23 | 1990-11-16 | Shell Int Research | PROCESS FOR PROCESSING HYDROGEN-CONTAINING GASES. |
| GB2116531B (en) * | 1982-03-11 | 1985-11-20 | Shell Int Research | Process and apparatus for the combustion of ammonia-containing waste gases |
| FR2631561B1 (en) * | 1988-05-20 | 1990-07-20 | Elf Aquitaine | PROCESS AND DEVICE FOR THE REMOVAL OF LOW CONCENTRATION OF H2S IN A GAS ALSO CONTAINING A LARGE QUANTITY OF WATER VAPOR |
| GB8830199D0 (en) * | 1988-12-23 | 1989-02-22 | Shell Int Research | Removing hydrogen sulphide from a gas mixture |
| DE3901600C2 (en) * | 1989-01-20 | 1998-12-24 | Krupp Koppers Gmbh | Process for the treatment of vacuum exhaust air from tar distillation plants |
| AU638543B2 (en) * | 1990-02-09 | 1993-07-01 | Mitsubishi Jukogyo Kabushiki Kaisha | Process for purifying high-temperature reducing gases and integrated coal gasification combined cycle power generation plant |
| US5266274A (en) * | 1992-10-13 | 1993-11-30 | Tpa, Inc. | Oxygen control system for a sulfur recovery unit |
| AR009277A1 (en) * | 1996-08-22 | 2000-04-12 | Shell Int Research | PROCESS FOR THE REDUCTION OF THE TOTAL SULFUR CONTENT IN GASES CONTAINING HYDROGEN SULFIDE AND OTHER SULFUR COMPONENTS |
| RU2562481C2 (en) * | 2014-01-29 | 2015-09-10 | Игорь Анатольевич Мнушкин | Method and apparatus for producing elementary sulphur with tail gas post-treatment |
| EP3067109B1 (en) * | 2015-03-12 | 2018-12-05 | Prosernat | Process for removing sulfur compounds from a gas with hydrogenation and direct oxidation steps |
| WO2019022603A1 (en) | 2017-07-26 | 2019-01-31 | Wte-Tech B.V. | Process to treat a sulphur compounds comprising gaseous feed |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2361825A (en) * | 1941-08-25 | 1944-10-31 | Union Oil Co | Reduction of sulphur dioxide to hydrogen sulphide and free sulphur |
| FR1105475A (en) * | 1954-01-24 | 1955-12-05 | Azote Office Nat Ind | Process for the desulphurization of industrial gases and vapors |
| US2860030A (en) * | 1954-12-17 | 1958-11-11 | Phillips Petroleum Co | Recovery of hydrogen sulfide and/or carbon dioxide substantially free from hydrocarbons and substantially pure hydrocarbons by chemical treatment of an impure hydrocarbon stream |
| US2887363A (en) * | 1956-09-28 | 1959-05-19 | Exxon Research Engineering Co | Conversion of methane to produce hydrogen sulfide |
| US3476513A (en) * | 1966-08-25 | 1969-11-04 | Exxon Research Engineering Co | Process and apparatus for the conversion of so2 in flue gas to sulfur |
| GB1116129A (en) * | 1967-03-02 | 1968-06-06 | Shell Int Research | Catalytic reduction of sulphur dioxide to hydrogen sulphide |
-
1970
- 1970-07-17 NL NLAANVRAGE7010604,A patent/NL171144B/en not_active IP Right Cessation
-
1971
- 1971-07-15 NO NO2707/71A patent/NO132088C/no unknown
- 1971-07-15 ZA ZA714698A patent/ZA714698B/en unknown
- 1971-07-15 CS CS7100005221A patent/CS179372B2/en unknown
- 1971-07-15 FR FR7125898A patent/FR2101724A5/fr not_active Expired
- 1971-07-15 DK DK349871A patent/DK149328C/en not_active IP Right Cessation
- 1971-07-15 GB GB3321771A patent/GB1356289A/en not_active Expired
- 1971-07-15 IT IT7344/71A patent/IT941574B/en active
- 1971-07-15 ES ES393290A patent/ES393290A1/en not_active Expired
- 1971-07-15 CH CH1044271A patent/CH580982A5/xx not_active IP Right Cessation
- 1971-07-15 AU AU31283/71A patent/AU459768B2/en not_active Expired
- 1971-07-15 FI FI2009/71A patent/FI56320C/en active
- 1971-07-15 SU SU711683575A patent/SU751318A3/en active
- 1971-07-15 JP JP5215671A patent/JPS5716846B1/ja active Pending
- 1971-07-15 AT AT617071A patent/AT308768B/en not_active IP Right Cessation
- 1971-07-15 BE BE770058A patent/BE770058A/en not_active IP Right Cessation
- 1971-07-15 DE DE2135522A patent/DE2135522C2/en not_active Expired
- 1971-07-15 IE IE899/71A patent/IE35451B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DK149328C (en) | 1986-10-06 |
| NL7010604A (en) | 1972-01-19 |
| DE2135522C2 (en) | 1983-01-13 |
| FI56320C (en) | 1980-01-10 |
| AU3128371A (en) | 1973-01-18 |
| GB1356289A (en) | 1974-06-12 |
| ES393290A1 (en) | 1973-08-16 |
| DK149328B (en) | 1986-05-05 |
| ZA714698B (en) | 1972-04-26 |
| NO132088B (en) | 1975-06-09 |
| FR2101724A5 (en) | 1972-03-31 |
| AU459768B2 (en) | 1975-04-10 |
| IE35451L (en) | 1972-01-17 |
| FI56320B (en) | 1979-09-28 |
| CS179372B2 (en) | 1977-10-31 |
| NO132088C (en) | 1975-09-17 |
| NL171144B (en) | 1982-09-16 |
| IT941574B (en) | 1973-03-10 |
| AT308768B (en) | 1973-07-25 |
| CH580982A5 (en) | 1976-10-29 |
| DE2135522A1 (en) | 1972-01-20 |
| BE770058A (en) | 1972-01-17 |
| SU751318A3 (en) | 1980-07-23 |
| JPS5716846B1 (en) | 1982-04-07 |
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