SU1627507A1 - Method for producing elementary sulphur from hydrogen sulfide - Google Patents
Method for producing elementary sulphur from hydrogen sulfide Download PDFInfo
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- SU1627507A1 SU1627507A1 SU884375327A SU4375327A SU1627507A1 SU 1627507 A1 SU1627507 A1 SU 1627507A1 SU 884375327 A SU884375327 A SU 884375327A SU 4375327 A SU4375327 A SU 4375327A SU 1627507 A1 SU1627507 A1 SU 1627507A1
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Abstract
Изобретение относитс к химической технологии, а именно к способам получени серы из сероводорода Предлагаемый способ позвол ет эффективно получать серу из сероводорода, содержащегос в природном газе в количестве 30-50 об.%. При этом углеводородные компоненты, очищаемые от сероводорода, соответствуют кондици м ОСТ-51.40-74 Способ основан на гетеро- генно-каталитическом окислении сероводорода в элементарную серу, которое провод т в две стадии. На I стадии окисление ведут в псевдоожиженном слое катализатора при 250-300°С, на II стадии-в реакторе со стационарным слоем катализатора при 140-155°С. Отношение кислорода к сероводороду на I стадии составл ет 0,5- 0,51. Обща степень конверсии H2S в серу составл ет 99,99%. 1 табл.The invention relates to chemical technology, in particular to methods for the production of sulfur from hydrogen sulfide. The proposed method makes it possible to efficiently produce sulfur from hydrogen sulfide contained in natural gas in an amount of 30-50% by volume. At the same time, hydrocarbon components purified from hydrogen sulphide correspond to the conditions of OST-51.40-74. The method is based on the heterogeneous catalytic oxidation of hydrogen sulphide to elemental sulfur, which is carried out in two stages. At stage I, oxidation is carried out in a fluidized bed of catalyst at 250-300 ° C, at stage II, in a reactor with a stationary layer of catalyst at 140-155 ° C. The ratio of oxygen to hydrogen sulfide in stage I is 0.5-0.51. The total conversion of H2S to sulfur is 99.99%. 1 tab.
Description
Изобретение относитс к способам получени серы из сероводорода природных газов.This invention relates to methods for producing sulfur from natural gas hydrogen sulfide.
Цель изобретени - упрощение процесса при переработке газов с содержанием сероводорода до 50%, а также снижение энергозатрат.The purpose of the invention is to simplify the process when processing gases with a hydrogen sulfide content up to 50%, as well as reducing energy costs.
Пример. Исходный природный газ состава 30 об.% H2S и 70% метана в количестве 5 л/ч подают в реактор первой стадии с псевдоожиженным слоем катализатора. Одновременно в реактор подают кислород в количестве 0,75 /./ч, соответствующем отношению 02/H2S 0.5. На первой стадии при 250°С происходит окисление сероводорода в элементарную серу. При этом степень извлечени серы из сероводорода составп ет 99% После конденсации серы, образующейс на стадии I, газова смесь, содержаща 98,6 об % метана. 0.26 об.% H2S, 0.13 об.% 02 и пылевидную серу 1%, подают в реактор стадии ;i со стационарнымExample. The initial natural gas composition of 30 vol.% H2S and 70% of methane in the amount of 5 l / h is fed to the first stage reactor with a fluidized bed of catalyst. At the same time, oxygen in the amount of 0.75 /./h corresponding to the ratio 02 / H2S 0.5 is supplied to the reactor. At the first stage at 250 ° С oxidation of hydrogen sulphide to elemental sulfur occurs. The degree of sulfur recovery from hydrogen sulfide is 99%. After condensation of the sulfur formed in stage I, the gas mixture contains 98.6% of methane. 0.26 vol.% H2S, 0.13 vol.% 02 and pulverized sulfur 1%, are fed to the reactor of the stage; i with stationary
слоем катализатора. На второй стадии при 140°С происходит дополнительное окисление сероводорода в элементарную серу. При этом степень извлечени серы составл ет 99,5, а суммарна степень извлечени серы - 99,99%. Концентраци H2S в газе, отход щем из реактора второй стадии, составл ет 19,5 мг/нм , а концентраци пылевидной серы 13 мг/нм3, 02 - 0,1 об %catalyst bed. At the second stage, at 140 ° С, the additional oxidation of hydrogen sulfide to elemental sulfur occurs. The degree of sulfur recovery is 99.5%, and the total degree of sulfur recovery is 99.99%. The concentration of H2S in the gas from the reactor of the second stage is 19.5 mg / nm, and the concentration of powdered sulfur 13 mg / nm3, 02 is 0.1% by volume.
Результаты остальных примеров представлены в таблице.The results of the other examples are presented in the table.
Как следует из представленной таблицы , проведение процесса при предлагаемых услови х обеспечивает высокую степень конверсии сероводорода в серу, что значительно снижает содержание сернистых соединений в отход щем газе и тем самым упрощает способ за счет исключени дополнительных стадий их конверсии Кроме того, способ позвол ет снизить энергозатраты за счет снижени температуры на второй стадии с 275-285 до 14СЫ55°СAs follows from the table, carrying out the process under the proposed conditions provides a high degree of conversion of hydrogen sulfide to sulfur, which significantly reduces the content of sulfur compounds in the exhaust gas and thereby simplifies the method by eliminating additional stages of their conversion. In addition, the method reduces energy consumption. by reducing the temperature in the second stage from 275-285 to 14СЫ55 ° С
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Claims (1)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884375327A SU1627507A1 (en) | 1988-02-09 | 1988-02-09 | Method for producing elementary sulphur from hydrogen sulfide |
DE3903294A DE3903294A1 (en) | 1988-02-09 | 1989-02-03 | METHOD FOR PURIFYING SULFURY GASES |
US07/308,319 US4886649A (en) | 1988-02-09 | 1989-02-08 | Method for the purification of hydrogen sulfide-containing gases |
FR898901633A FR2626784B1 (en) | 1988-02-09 | 1989-02-08 | PROCESS FOR THE PURIFICATION OF GASES CONTAINING HYDROGEN SULFIDE |
CA000590617A CA1307906C (en) | 1988-02-09 | 1989-02-09 | Method for the purification of hydrogen sulfide-containing gases |
JP1030923A JP2598508B2 (en) | 1988-02-09 | 1989-02-09 | Purification method of gas containing hydrogen sulfide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU884375327A SU1627507A1 (en) | 1988-02-09 | 1988-02-09 | Method for producing elementary sulphur from hydrogen sulfide |
Publications (1)
Publication Number | Publication Date |
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SU1627507A1 true SU1627507A1 (en) | 1991-02-15 |
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Application Number | Title | Priority Date | Filing Date |
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SU884375327A SU1627507A1 (en) | 1988-02-09 | 1988-02-09 | Method for producing elementary sulphur from hydrogen sulfide |
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SU (1) | SU1627507A1 (en) |
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1988
- 1988-02-09 SU SU884375327A patent/SU1627507A1/en active
Non-Patent Citations (1)
Title |
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Авторское свидетельство СССР N° 856974,кл. С 01 В 17/04, 1981. * |
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