AT90258B - Process for the production of hydrogen sulfide from sulfates. - Google Patents
Process for the production of hydrogen sulfide from sulfates.Info
- Publication number
- AT90258B AT90258B AT90258DA AT90258B AT 90258 B AT90258 B AT 90258B AT 90258D A AT90258D A AT 90258DA AT 90258 B AT90258 B AT 90258B
- Authority
- AT
- Austria
- Prior art keywords
- sulfates
- production
- hydrogen sulfide
- gases
- reduction
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 7
- 150000003467 sulfuric acid derivatives Chemical class 0.000 title description 5
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 title description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 title description 2
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000007789 gas Substances 0.000 description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 150000004763 sulfides Chemical class 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 241000283153 Cetacea Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- XOCUXOWLYLLJLV-UHFFFAOYSA-N [O].[S] Chemical class [O].[S] XOCUXOWLYLLJLV-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Description
<Desc/Clms Page number 1>
VerfahrenzurHerstellungvonSehwefelwasserstoffausSulfaten.
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gebietes mit Hilfe von Kohlenwasserstoffen zu Sulfiden reduziert, und die reduzieren Sulfide mit den kohlensäurehaltigen Abgasen des Reduktionsprozesses unter Bildung von Schwefelwasserstoff zersetzt werden. Der gebildete Schwefelwasserstoff kann alsdann in bekannter Weise für mannigfache Prozesse. z. B. für die Gewinnung von Schwefel und schwefelsäure, nutzbar gemacht werden.
Die beiden Teilvorgänge, aus denen sich das Verfahren zusammensetzt, nämlich die Reduktion von Sulfaten zu Sulfiden und die Zersetzung von Sulfiden mittels kohlensäurehaltiger Gase sind an sich
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zu gewinnen ; hier weist erst das vorliegende Verfahren die Wege.
Zunächst ist es selbstverständlich notwendig, dass die zu reduzierenden Sulfate mögliehst rein sind. und dass das für die Reduktion dienende Gas keine, oder keine irgendwie erheblichen Mengen störender Verunreinigungen, wie Halogene, Halogenverbindungen, Schwefeldixyd oder auch Saueitsoff enthält. Daher können für das vorliegende Verfahren ungereinigte Destillationsgase irgendwelcher Art nicht in Frage kommen ; gut geeignet sind dagegen gereinigte Gase und vor allem reine Naturgase. wie sie im Erdgas als fast reines Methan vielfach zur Verfugung stellen.
Für das Arbeitsverfahren selbst ist die Wal) ! des Temperaturgebietes massgebend, denn es muss
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unerwünschter Zersetzungsprodukte aus den sulfaten vermieden werden.
Es ist erkannt worden. dass diese Forderungen sich erfüllen lassen, wenn die Reduktion in einem ziemlich eng begrenzten Temperaturgebiet vorgenommen wird, das für die hauptsächlich in Frage kommenden Reduktionsmittel praktisch zwischen 850 und 1050 liegt. Arbeitet man bei wesentlich niedrigerer Temperatur, so erhalten die Gase unverbrauchte Reduktionsmittel : steigt die Temperatur erheblich über die angegebene Höchstgrenze hinaus, so bilden sich Sauerstoffverbindungen des Schwefels, vor allen schweflige Säure.
Nun ist aber das eine so unerwünscht wie das andere, denn sowohl nnverbtauchte Reduktionsgase.
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for the production of hydrogen sulfide from sulfates.
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area is reduced to sulphides with the help of hydrocarbons, and the reduced sulphides are decomposed with the carbonated exhaust gases of the reduction process to form hydrogen sulphide. The hydrogen sulphide formed can then be used in a known manner for a variety of processes. z. B. for the extraction of sulfur and sulfuric acid, can be made usable.
The two sub-processes that make up the process, namely the reduction of sulfates to sulfides and the decomposition of sulfides by means of carbonated gases, are in themselves
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to win ; here only the present proceedings point the way.
First of all it is of course necessary that the sulfates to be reduced are as pure as possible. and that the gas used for the reduction does not contain any or any significant amounts of interfering impurities such as halogens, halogen compounds, sulfur dioxide or even oxygen. Therefore, unpurified distillation gases of any kind cannot be considered for the present process; In contrast, purified gases and, above all, pure natural gases are well suited. as they are often available in natural gas as almost pure methane.
For the working process itself is the whale)! of the temperature range is decisive, because it must
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unwanted decomposition products from the sulfates can be avoided.
It has been recognized. that these requirements can be met if the reduction is carried out in a rather narrowly limited temperature range, which is practically between 850 and 1050 for the reducing agents mainly in question. If you work at a much lower temperature, the gases contain unused reducing agents: if the temperature rises significantly above the specified maximum limit, sulfur oxygen compounds are formed, especially sulfurous acid.
But now one is as undesirable as the other, because both non-consumed reducing gases.
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** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90258T | 1918-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT90258B true AT90258B (en) | 1922-12-11 |
Family
ID=3610547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT90258D AT90258B (en) | 1918-04-04 | 1918-04-04 | Process for the production of hydrogen sulfide from sulfates. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT90258B (en) |
-
1918
- 1918-04-04 AT AT90258D patent/AT90258B/en active
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