WO2017026914A1 - Method of low-temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur - Google Patents
Method of low-temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur Download PDFInfo
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- WO2017026914A1 WO2017026914A1 PCT/RU2015/000865 RU2015000865W WO2017026914A1 WO 2017026914 A1 WO2017026914 A1 WO 2017026914A1 RU 2015000865 W RU2015000865 W RU 2015000865W WO 2017026914 A1 WO2017026914 A1 WO 2017026914A1
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- hydrogen sulfide
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- hydrogen
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- temperature
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- 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
- C01B17/021—Separation of sulfur from gases
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/04—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by decomposition of inorganic compounds, e.g. ammonia
-
- 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
-
- 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
- C01B17/0495—Preparation of sulfur; Purification from gaseous sulfur compounds including gaseous sulfides by dissociation of hydrogen sulfide into the elements
-
- 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
- C01B17/0426—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 characterised by the catalytic conversion
- C01B17/0439—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 characterised by the catalytic conversion at least one catalyst bed operating below the dew-point of sulfur
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
Definitions
- the invention relates to gas and oil refining, in particular to methods of decomposition and disposal of hydrogen sulfide, and may be used for production of hydrogen and sulfur from hydrogen sulfide.
- Hydrogen sulfide is the main side product of oil refining, and a large amount thereof is contained in formation fluid of oil, gas and condensate fields.
- hydrogen sulfide at gas and oil refineries is recycled by the Claus method of thermal decomposition with derivation of sulfur.
- the disadvantage of this method is high temperature of the process and impossibility of hydrogen derivation.
- Solid material capable of activation of hydrogen sulfide at the temperature under 200°C is selected as the mentioned material, and regeneration is performed by running through regenerating gas that does not contain hydrogen sulfide or one that contains it in concentration that is lower than in initial sulfurous gas at the temperature not higher than 350°C.
- the disadvantage of this method is necessity of frequent regeneration of solid material to remove sulfur.
- the closest solution to the proposed technical one is the method of decomposition of hydrogen sulfide with derivation of hydrogen and sulfur (patent of the Russian Federation No. 2239594, cl. 7 C01 B 17/04, 3/06, pubd. on 10.1 1.2004) that includes contact of sulfurous gas through a layer of solid material capable of decomposing hydrogen sulfide with generation of hydrogen and formation of sulfurous compounds on the material surface, periodical regeneration of material by decomposition of the mentioned hydrogen sulfurous compounds, and generation of sulfur.
- hydrogen sulfide decomposition is performed in a chemisorptive-catalytic mode at the temperature under the melting point of sulfur with derivation of hydrogen and surface chemisorbed compounds. Reactivation is performed at the temperature under the sulfur melting point, and regeneration is performed at the temperature over the sulfur melting point.
- the disadvantage of the method is cyclically of the process associated with necessity both to reactivate and regenerate solid material of catalyst, and a low degree of hydrogen sulfide decomposition when performing the process in the nonstop mode.
- the object of the present invention is creation of an efficient method of low- temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur that provides for performance of the process in the non-stop mode.
- Technical result achieved by implementation of the invention is increase of hydrogen sulfide conversion degree and prevention of catalyst contamination.
- Technical result is achieved on the basis of the method of low-temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur which includes running of hydrogen sulfide through a layer of catalyst; at the temperature 0-35°C hydrogen sulfide is run through layers of catalyst and sulfur sorbent loaded into sequentially installed modules.
- stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5-5.5 mm is used as catalyst, and the number of modules with catalyst and sulfur sorbent is 6-12 pes.
- gas mixture generated in the last module is run through ethanolamine solution for purification of hydrogen from hydrogen sulfide residues with further desorption of hydrogen sulfide from ethanolamine solution, and desorption of sulfur from sulfur sorbent is performed with nitrogen at the temperature of 140-160°C.
- ⁇ - ⁇ 1203 may be used as sulfur sorbent.
- Desorbed hydrogen sulfide may be returned to the first module input.
- modules with catalyst and sulfur sorbent totaling 6-12 pes ensures hydrogen content over 75 vol. % in gaseous phase. Sulfur from sulfur sorbent is desorbed with nitrogen during sulfur enrichment at the temperature of 140-160°C.
- derived hydrogen that contains 12-25 vol. % of hydrogen sulfide may be used directly for production purposes, for instance, for hydrogen refining of oil products from sulfur-containing compounds.
- sulfur sorbent enriched with sulfur can be used as modifying agent widely used in production of asphalt- concrete products.
- the claimed method suggests a combination of low-temperature catalytic process of hydrogen sulfide decomposition on the surface of metal catalyst and further removal of gaseous sulfur from the volume of generated resultants with numerous repetition of the processes of hydrogen sulfide catalytic decomposition and adsorption of gaseous sulfur with sequential running of gaseous mixture through catalyst layers and sulfur sorbent.
- Hydrogen sulfide is run through layers of catalyst and sulfur sorbent loaded into sequentially installed modules for 3-48 hours at the temperature of 0-35°C and speed of 1 1/h.
- Stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5- 5.5 mm is used as catalyst; ⁇ - ⁇ 1 2 ⁇ 3 is used as sulfur sorbent.
- To purify hydrogen from sulfur the resultant gas mixture is run through ethanolamine solution, ethanolamine solution is regenerated by way of heating and desorption of hydrogen sulfide. Regenerated solution is returned to the stage of hydrogen purification from hydrogen sulfide. Desorbed hydrogen sulfide is returned to the first module input.
- the number of modules with catalyst and sulfur sorbent is 6-12 pes.
- sulfur enrichment sulfur sorbent is removed from the system, directed to regeneration for derivation of elemental sulfur.
- Desorption of sulfur from sulfur sorbent is performed with nitrogen at the temperature of 140-160°C.
- Regenerated sulfur sorbent is repeatedly used for sulfur sorption.
- gaseous mixture is analyzed for hydrogen and hydrogen sulfide content before sending it for purification.
- Hydrogen sulfide decomposition products are hydrogen and sulfur based on the suggested method. Decomposition of hydrogen sulfide as in the prior art using MoS 2 molybdenum disulfide and stainless steel chips as catalyst was performed for comparison. Hydrogen sulfide was run through for 3 hours.
- Si0 2 and sibunite may also be used as sulfur sorbent.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention relates to gas and oil refining, in particular to methods of decomposition and disposal of hydrogen sulfide, and may be used for production of hydrogen and sulfur from hydrogen sulfide. The method of low-temperature decomposition of hydrogen sulfide includes running of hydrogen sulfide through catalyst and sulfur sorbent layers loaded into sequentially installed modules at the temperature of 0-35°C. Stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5-5.5 mm is used as catalyst, and the number of modules with catalyst and sulfur sorbent is 6-12 pcs. Gas mixture generated in the last module is run through ethanolamine solution for purification of hydrogen from hydrogen sulfide residues with further desorption of hydrogen sulfide from ethanolamine solution. Desorption of sulfur from sulfur sorbent is performed with nitrogen at the temperature of 140-160°C. The claimed invention ensures increase of hydrogen sulfide conversion degree and prevention of catalyst contamination.
Description
METHOD OF LOW-TEMPERATURE DECOMPOSITION OF HYDROGEN SULFIDE WITH DERIVATION OF HYDROGEN AND
SULFUR
The invention relates to gas and oil refining, in particular to methods of decomposition and disposal of hydrogen sulfide, and may be used for production of hydrogen and sulfur from hydrogen sulfide.
Hydrogen sulfide is the main side product of oil refining, and a large amount thereof is contained in formation fluid of oil, gas and condensate fields. Usually, hydrogen sulfide at gas and oil refineries is recycled by the Claus method of thermal decomposition with derivation of sulfur. The disadvantage of this method is high temperature of the process and impossibility of hydrogen derivation.
Direct decomposition of hydrogen sulfide into sulfur and hydrogen is an endothermal process and may go on with noticeable speed only at sufficiently high temperatures. However, use of catalysts allows significantly reducing temperature of hydrogen sulfide decomposition into hydrogen and sulfur. Exclusion of one of the derived components from the system leads to a shift in the reaction equilibrium towards appearance of decomposition products.
There is a known method of catalytic decomposition of hydrogen sulfide into hydrogen and sulfur that includes circulation of sulfurous gas at the temperature of 450-800°C with removal of appearing sulfur from circulating gas (US 3962409, C 01 B 17/04, 08.06.1976). The disadvantage of the known method is high temperature of the process and low equilibrium degree of hydrogen sulfide decomposition within the given temperature range (not more than 15%).
There is a known method of derivation of hydrogen and elemental sulfur from hydrogen sulfide (patent of the Russian Federation No. 2216506, cl. 7 C01 B 17/04, 3/06, pubd. on 20.1 1.2003) that includes running of initial sulfurous gas through a layer of solid material capable of adsorbing hydrogen sulfide with generation of hydrogen and formation of solid hydrogen-sulfide compounds on the material surface; periodical regeneration of the solid material layer by
decomposition of the mentioned hydrogen sulfide-containing compounds and generation of elemental sulfur vapors. In such case running of initial sulfurous gas through a layer of solid material is performed at the temperature under 200°C. Solid material capable of activation of hydrogen sulfide at the temperature under 200°C is selected as the mentioned material, and regeneration is performed by running through regenerating gas that does not contain hydrogen sulfide or one that contains it in concentration that is lower than in initial sulfurous gas at the temperature not higher than 350°C. The disadvantage of this method is necessity of frequent regeneration of solid material to remove sulfur.
The closest solution to the proposed technical one is the method of decomposition of hydrogen sulfide with derivation of hydrogen and sulfur (patent of the Russian Federation No. 2239594, cl. 7 C01 B 17/04, 3/06, pubd. on 10.1 1.2004) that includes contact of sulfurous gas through a layer of solid material capable of decomposing hydrogen sulfide with generation of hydrogen and formation of sulfurous compounds on the material surface, periodical regeneration of material by decomposition of the mentioned hydrogen sulfurous compounds, and generation of sulfur. This being the case, hydrogen sulfide decomposition is performed in a chemisorptive-catalytic mode at the temperature under the melting point of sulfur with derivation of hydrogen and surface chemisorbed compounds. Reactivation is performed at the temperature under the sulfur melting point, and regeneration is performed at the temperature over the sulfur melting point.
The disadvantage of the method is cyclically of the process associated with necessity both to reactivate and regenerate solid material of catalyst, and a low degree of hydrogen sulfide decomposition when performing the process in the nonstop mode.
The object of the present invention is creation of an efficient method of low- temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur that provides for performance of the process in the non-stop mode.
Technical result achieved by implementation of the invention is increase of hydrogen sulfide conversion degree and prevention of catalyst contamination.
Technical result is achieved on the basis of the method of low-temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur which includes running of hydrogen sulfide through a layer of catalyst; at the temperature 0-35°C hydrogen sulfide is run through layers of catalyst and sulfur sorbent loaded into sequentially installed modules. However, stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5-5.5 mm is used as catalyst, and the number of modules with catalyst and sulfur sorbent is 6-12 pes. In this case gas mixture generated in the last module is run through ethanolamine solution for purification of hydrogen from hydrogen sulfide residues with further desorption of hydrogen sulfide from ethanolamine solution, and desorption of sulfur from sulfur sorbent is performed with nitrogen at the temperature of 140-160°C.
γ-Α1203 may be used as sulfur sorbent.
Desorbed hydrogen sulfide may be returned to the first module input.
Use of modules with catalyst and sulfur sorbent totaling 6-12 pes ensures hydrogen content over 75 vol. % in gaseous phase. Sulfur from sulfur sorbent is desorbed with nitrogen during sulfur enrichment at the temperature of 140-160°C.
It has been established that when using stainless steel as catalyst, resultants contain hydrogen and gaseous diatomic sulfur in the form of S2. However, sulfur does not sediment on metal catalyst, but together with hydrogen and unreacted hydrogen sulfide it is transferred to sulfur sorbent where it is adsorbed and removed from gas mixture. After removal of gaseous sulfur, the gaseous phase containing hydrogen and hydrogen sulfide is transferred to the next module along gas travel path where catalytic decomposition of hydrogen sulfide with generation of hydrogen and gaseous sulfur, and adsorption of sulfur by sorbent etc. also take place.
Given that the equilibrium constant of reaction of low-temperature catalytic conversion of hydrogen sulfide into hydrogen and sulfur does not exceed 15%, removal of one of gaseous resultants from the reaction zone, in particular generated gaseous sulfur, and use of 6-12 sequentially installed modules with catalyst and sulfur sorbent ensure approximately 75-88 vol. % of hydrogen sulfide conversion
degree and derivation of hydrogen containing 12-25 vol. % of hydrogen sulfide. Purification of gas mixture from hydrogen sulfide by adsorption of unreacted hydrogen sulfide by ethanolamine solution allows for derivation of pure hydrogen. When regenerating sulfur sorbent by sulfur desorption in nitrogen current at the temperature of 140-160°C, liquid sulfur is generated.
It should be noted that derived hydrogen that contains 12-25 vol. % of hydrogen sulfide may be used directly for production purposes, for instance, for hydrogen refining of oil products from sulfur-containing compounds. Besides, sulfur sorbent enriched with sulfur can be used as modifying agent widely used in production of asphalt- concrete products.
In case of increase of the number of modules to more than 12, hydrogen sulfide conversion degree increases insignificantly, however, metal consumption of the process grows considerably. In case of decrease of the number of modules to less than 6 hydrogen sulfide conversion degree decreases.
Use of stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5- 5.5 mm prevents catalyst from contamination which allows for continuous performance of the process of low-temperature decomposition of hydrogen sulfide. However, decrease of the size of chips under the lower limit results in rise of costs for the process of their derivation. Increase of the size of chips over their upper limits results in decrease of catalyst specific surface and decrease of hydrogen sulfide conversion degree.
With the rise of the process temperature over 35°C the conversion degree of hydrogen sulfide decreases. At the temperatures below 0°C the process values remain virtually unchanged.
When performing desorption of sulfur from sulfur sorbent at the temperature of 140-160°C, minimum values of liquid sulfur viscosity are provided. Increase of desorption temperature to more than 160°C or decrease to less than 140°C results in quick increase of liquid sulfur viscosity and decrease of sulfur desorption degree (sulfur output).
Therefore, the claimed method suggests a combination of low-temperature catalytic process of hydrogen sulfide decomposition on the surface of metal catalyst and further removal of gaseous sulfur from the volume of generated resultants with numerous repetition of the processes of hydrogen sulfide catalytic decomposition and adsorption of gaseous sulfur with sequential running of gaseous mixture through catalyst layers and sulfur sorbent.
The following is used in the claimed method:
stainless steel of 12X18H10T and 08X18H10T grades according to GOST 5949-75;
- aluminum oxide of γ-Α1203 modification according to GOST 23683-89;
- hydrogen sulfide derived by way of interaction of commercial sulfur with hydrogen at 400°C in the presence of sulfide catalysts;
The essence of the claimed invention is explained by the following example.
Hydrogen sulfide is run through layers of catalyst and sulfur sorbent loaded into sequentially installed modules for 3-48 hours at the temperature of 0-35°C and speed of 1 1/h. Stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5- 5.5 mm is used as catalyst; γ-Α12Ο3 is used as sulfur sorbent. To purify hydrogen from sulfur the resultant gas mixture is run through ethanolamine solution, ethanolamine solution is regenerated by way of heating and desorption of hydrogen sulfide. Regenerated solution is returned to the stage of hydrogen purification from hydrogen sulfide. Desorbed hydrogen sulfide is returned to the first module input. The number of modules with catalyst and sulfur sorbent is 6-12 pes. Due to sulfur enrichment sulfur sorbent is removed from the system, directed to regeneration for derivation of elemental sulfur. Desorption of sulfur from sulfur sorbent is performed with nitrogen at the temperature of 140-160°C. Regenerated sulfur sorbent is repeatedly used for sulfur sorption. After the last module, gaseous mixture is analyzed for hydrogen and hydrogen sulfide content before sending it for purification. Hydrogen sulfide decomposition products are hydrogen and sulfur based on the suggested method.
Decomposition of hydrogen sulfide as in the prior art using MoS2 molybdenum disulfide and stainless steel chips as catalyst was performed for comparison. Hydrogen sulfide was run through for 3 hours.
Hydrogen sulfide values of conversion into hydrogen and sulfur are shown in the Table.
As the Table shows, use of the suggested method allows for performance of hydrogen sulfide decomposition with derivation of hydrogen and sulfur in a continuous mode for increase and provision of hydrogen sulfide conversion degree of over 75%.
α-Α1203, Si02 and sibunite may also be used as sulfur sorbent.
Therefore, implementation of the suggested method of low-temperature hydrogen sulfide decomposition with derivation of hydrogen and sulfur allows for decomposition of hydrogen sulfide without contamination of catalyst which will allow for the process of low-temperature decomposition of hydrogen sulfide to be performed in a continuous mode at low temperatures of 0-35 °C with derivation of hydrogen and hydrogen sulfide gas mixture containing 75-88 vol. % of hydrogen. Commercial hydrogen is derived after purification of gas mixture from hydrogen sulfide. In this case necessity for periodical catalyst reactivation and regeneration processes is excluded. When implementing the suggested method, hydrogen sulfide decomposition products are hydrogen and sulfur. Sulfur desorption degree within the recommended desorption temperature range (140-160°C) is 86.9-90.9%.
Table - Values of low-temperature conversion of hydrogen sulfide into hydrogen and sulfur.
Claims
1. Method of low-temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur that includes running of hydrogen sulfide through a layer of catalyst, wherein hydrogen sulfide is run through catalyst and sulfur sorbent layers loaded into sequentially installed modules at the temperature of 0-35°C with use of stainless steel chips with thickness of 0.1-0.2 mm and length of 1.5-5.5 mm as catalyst, and the number of modules with catalyst is 6-12 pes, whereas gas mixture generated in the last module is run through ethanolamine solution for purification of hydrogen from hydrogen sulfide residues with further desorption of hydrogen sulfide from ethanolamine solution, and desorption of sulfur from sulfur sorbent is performed with nitrogen at the temperature of 140- 160°C.
2. The method according to claim 1 wherein γ-Α1203 is used as sulfur sorbent.
3. The method according to claim 1 or 2 wherein desorbed hydrogen sulfide is returned to the first module input.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2015133966/05A RU2600375C1 (en) | 2015-08-13 | 2015-08-13 | Method for low-temperature decomposition of hydrogen sulphide to obtain hydrogen and sulphur |
| RU2015133966 | 2015-08-13 |
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| WO2017026914A1 true WO2017026914A1 (en) | 2017-02-16 |
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| PCT/RU2015/000865 WO2017026914A1 (en) | 2015-08-13 | 2015-12-09 | Method of low-temperature decomposition of hydrogen sulfide with derivation of hydrogen and sulfur |
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| RU (1) | RU2600375C1 (en) |
| WO (1) | WO2017026914A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127602A (en) * | 2018-02-09 | 2019-08-16 | 中国石油化工股份有限公司 | The method of applications catalyst decomposing hydrogen sulfide |
| EP4180386A1 (en) | 2021-11-16 | 2023-05-17 | TotalEnergies OneTech | Process for the continuous conversion of h2s into h2 and sulphur |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2725636C1 (en) * | 2019-12-09 | 2020-07-03 | Акционерное общество "Газпромнефть - Омский НПЗ" (АО "Газпромнефть-ОНПЗ") | Method of low-temperature decomposition of hydrogen sulphide with production of hydrogen and sulfur |
| WO2022149994A1 (en) * | 2021-01-11 | 2022-07-14 | Анатолий Николаевич СТАРЦЕВ | Catalyst for obtaining hydrogen and diatomic gaseous sulfur during hydrogen sulfide decomposition process |
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| US3634028A (en) * | 1966-10-27 | 1972-01-11 | Metallgesellschaft Ag | Process for removing sulfur from gases |
| US3962409A (en) | 1973-10-29 | 1976-06-08 | Agency Of Industrial Science & Technology | Process for production of hydrogen and sulfur from hydrogen sulfide as raw material |
| US4610766A (en) * | 1985-06-11 | 1986-09-09 | Phillips Petroleum Company | Photochemical production of hydrogen from hydrogen sulfide |
| WO1994013579A1 (en) * | 1992-12-16 | 1994-06-23 | The Regents Of The University Of California | Process for recovery of sulfur from acid gases |
| RU2216506C1 (en) | 2002-02-26 | 2003-11-20 | Институт катализа им. Г.К.Борескова СО РАН | Method for preparing hydrogen and elemental sulfur from hydrogen sulfide |
| RU2239594C1 (en) | 2003-10-07 | 2004-11-10 | Институт катализа им. Г.К. Борескова СО РАН | Hydrogen sulfide decomposition process |
| US20060120948A1 (en) * | 2002-06-04 | 2006-06-08 | Agarwal Pradeep K | Membrane for hydrogen recovery from streams containing hydrogen sulfide |
| US20070292337A1 (en) * | 2004-04-01 | 2007-12-20 | Startsev Anatolii N | Method for Hydrogen Sulphide and/or Mercaptans Decomposition |
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| RU2099280C1 (en) * | 1991-07-27 | 1997-12-20 | Солвей Интерокс Лимитед | Method of producing elementary sulfur from hydrogen sulfide and cyclic method for producing hydrogen peroxide |
| RU2152353C1 (en) * | 1999-10-06 | 2000-07-10 | Мелуа Аркадий Иванович | Sulfur production process |
| CN102380311B (en) * | 2010-09-01 | 2013-12-25 | 中国石油化工股份有限公司 | Gasoline adsorption desulfuration regeneration smoke treatment method and tail gas hydrogenation catalyst preparation method thereof |
| US8916117B2 (en) * | 2012-08-07 | 2014-12-23 | Exxonmobil Research And Engineering Company | Corrosion control in acid gas removal equipment by the situ generation of polysulfide ions |
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| US3634028A (en) * | 1966-10-27 | 1972-01-11 | Metallgesellschaft Ag | Process for removing sulfur from gases |
| US3962409A (en) | 1973-10-29 | 1976-06-08 | Agency Of Industrial Science & Technology | Process for production of hydrogen and sulfur from hydrogen sulfide as raw material |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110127602A (en) * | 2018-02-09 | 2019-08-16 | 中国石油化工股份有限公司 | The method of applications catalyst decomposing hydrogen sulfide |
| CN110127602B (en) * | 2018-02-09 | 2020-09-25 | 中国石油化工股份有限公司 | Method for decomposing hydrogen sulfide by using catalyst |
| EP4180386A1 (en) | 2021-11-16 | 2023-05-17 | TotalEnergies OneTech | Process for the continuous conversion of h2s into h2 and sulphur |
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| Publication number | Publication date |
|---|---|
| RU2600375C1 (en) | 2016-10-20 |
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