DE502908C - Process for the production of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate - Google Patents

Process for the production of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate

Info

Publication number
DE502908C
DE502908C DEO18194A DEO0018194A DE502908C DE 502908 C DE502908 C DE 502908C DE O18194 A DEO18194 A DE O18194A DE O0018194 A DEO0018194 A DE O0018194A DE 502908 C DE502908 C DE 502908C
Authority
DE
Germany
Prior art keywords
hydrogen sulfide
sulfhydrate
bicarbonate
carbon dioxide
aqueous solutions
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
Application number
DEO18194A
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOLLANDO BELGE FAB COKE SA
Original Assignee
HOLLANDO BELGE FAB COKE SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by HOLLANDO BELGE FAB COKE SA filed Critical HOLLANDO BELGE FAB COKE SA
Priority to DEO18194A priority Critical patent/DE502908C/en
Priority to GB14720/30A priority patent/GB345873A/en
Application granted granted Critical
Publication of DE502908C publication Critical patent/DE502908C/en
Expired legal-status Critical Current

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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
    • C01B17/16—Hydrogen sulfides
    • C01B17/167—Separation
    • 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
    • C10K1/122—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 containing only carbonates, bicarbonates, hydroxides or oxides of alkali-metals (including Mg)

Description

Verfahren zur Gewinnung von an Schwefelwasserstoff reichen Gasen an wässerigen Lösungen von Alkalicarbonat, -bicarbonat und -sulfhydrat Gegenstand der Erfindung ist ein Verfahren zur Gewinnung von an Schwefelwasserstoff reichen Gasen aus wässerigen Lösungen von Alkalicarbonat, -bicarbonat und -sulfhydrat. Derartige Lösungen fallen beispielsweise an, wenn schwefelwasserstoffhaltige Gase mit einer Alkalicarbonatlösung behandelt werden; zur restlosen Ausscheidung des Schwefelwasserstoffes ist naturgemäß ein gewisser Überschuß von Alkalicarbonat erforderlich, so daß nach der Umsetzung des Schwefelwasserstoffes mit dem Alkalicarbonat zu Alkalibicarbonat und -sulfhydrat noch unverbrauchtes -carbonat vorhanden ist. Es ist zwar bekannt, aus Alkalisulfhydrat enthaltenden wässerigen Lösungen durch Behandeln finit Kohlendioxyd den Schwefelwasserstoff zu gewinnen, da sich das Alkalisulfhydrat mit dem Kohlendioxyd zu Alkalibicarbonat und Schwefelwasserstoff umsetzt. Diese Umsetzung findet jedoch erst dann vollständig statt, wenn das gesamte noch vorhandene Carbonat durch Reaktion mit dem Kohlendioxyd in Bicarbonat übergeführt worden ist. Die Umwandlung des Sulfhydrates mittels Kohlendioxyd zu Schwefelwasserstoff- erfordert gemäß dem Massenwirkungsgesetz einen großen Überschuß von Kohlendioxyd, so daß der Schwefelwasserstoff nur stark mit Kohlensäure verdünnt anfällt. Die theoretisch vorhandene Möglichkeit, aus einem derartigen Gasgemisch den Schwefelwasserstoff durch Oxydation zu verarbeiten, hat sich bisher als praktisch undurchführbar erwiesen (vgl. z. B. G 1 u u d , Handbuch der Kokerei, Bd.II, Seite 98).Process for the production of gases rich in hydrogen sulphide aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate are the subject of Invention is a process for the recovery of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate. Such Solutions arise, for example, when gases containing hydrogen sulfide with a Alkali carbonate solution to be treated; for the complete elimination of the hydrogen sulfide a certain excess of alkali metal carbonate is naturally required, so that after the conversion of the hydrogen sulfide with the alkali carbonate to alkali bicarbonate and sulfhydrate is still unused carbonate. It is well known from aqueous solutions containing alkali sulfhydrate by treating finite carbon dioxide to win the hydrogen sulfide, since the alkali sulfhydrate with the carbon dioxide converts to alkali bicarbonate and hydrogen sulfide. However, this implementation takes place only takes place completely when all of the carbonate still present has reacted has been converted into bicarbonate with the carbon dioxide. The conversion of the sulfhydrate by means of carbon dioxide to hydrogen sulfide - required according to the law of mass action a large excess of carbon dioxide, so that the hydrogen sulfide is only strong is obtained diluted with carbonic acid. The theoretically available possibility of a such a gas mixture to process the hydrogen sulfide by oxidation have so far proven to be practically impracticable (cf. e.g. G 1 u u d, manual der Kokerei, Vol. II, page 98).

Die Erfindung bezweckt, aus den eingangs genannten Lösungen ein an Schwefelwasserstoff reiches Gas zu erzeugen; die Erfindung besteht im wesentlichen darin, dal5 die genannten Lösungen zunächst mit einem Teilstrom des Endgases behandelt werden; wobei infolge der größeren Reaktionsgeschwindigkeit das in der Lösung vorhandene Carbonat sich im wesentlichen nur mit dein Schwefelwasserstoff des Gases zu Bicarbonat und Sulfhydrat umsetzt, und daß die nunmehr nur noch aus Bicarbonat und Sulfhydrat bestehende Lösung in einer zweiten Stufe mit Kohlendioxyd behandelt wird, wobei sich das gesamte Sulfhydrat zu Schwefelwasserstoff und Bicarbonat umsetzt. Aus dieser Stufe wird daher eine reine Bicarbonatlösung und ein an Schwefelwasserstoff reiches Gas gewonnen. Von diesem Endgas wird, wie vorstehend geschildert ist, ein Teil in der ersten Verfahrensstufe verwendet, der restliche Teil kann ohne Schwierigkeiten aufbereitet werken. Besonders zweckmäßig ist es hierbei, auch das in der ersten Stufe erzeugte kohlendioxydreiche Gas neben dem frisch zugeführten Kohlendioxyd in der zweiten Stufe zu verwenden, wobei das frisch zugeführte Kohlendioxyd zuletzt mit der Lösung in Berührung gebracht wird.The aim of the invention is to provide one of the solutions mentioned at the outset Generate hydrogen sulfide rich gas; the invention essentially consists in that the solutions mentioned are initially treated with a partial flow of the end gas will; where, as a result of the greater reaction rate, that which is present in the solution Carbonate essentially only converts to bicarbonate with the hydrogen sulfide in the gas and sulfhydrate converts, and that now only consists of bicarbonate and sulfhydrate existing solution is treated with carbon dioxide in a second stage, wherein the entire sulfhydrate converts to hydrogen sulfide and bicarbonate. From this The second stage therefore becomes a pure bicarbonate solution and one rich in hydrogen sulphide Gas won. As described above, a part of this end gas is in the first stage of the process is used, the remaining part can be used without difficulty work processed. It is particularly useful here, including that in the first Stage produced carbon dioxide-rich gas in addition to the freshly supplied carbon dioxide in the second stage to use, with the freshly supplied carbon dioxide is finally brought into contact with the solution.

Claims (2)

PATENTANSPRÜCHE: i. Verfahren zur Gewinnung von an Schwefelwasserstoff reichen Gasen aus wässerigen Lösungen von Alkalicarbonat, -bicarbonat und -sulfhydrat, dadurch gekennzeichnet, daß die Lösung zunächst mit einem Teilstrom des Endgases und sodann mit einem an Kohlendioxyd reichen Gase behandelt wird. PATENT CLAIMS: i. Process for the production of hydrogen sulfide rich gases from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate, characterized in that the solution initially with a partial flow of the end gas and then treated with a gas rich in carbon dioxide. 2. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß auch das in der ersten Stufe erzeugte kohlendioxydreiche Gas neben frisch zugeführtem Kohlendioxyd in der zweiten Stufe verwendet wird, wobei das frisch zugeführte Kohlendioxyd zuletzt mit der Lösung in Berührung gebracht wird.2. Procedure according to Claim i, characterized in that the carbon dioxide-rich produced in the first stage Gas in addition to freshly supplied carbon dioxide is used in the second stage, wherein the freshly supplied carbon dioxide was finally brought into contact with the solution will.
DEO18194A 1929-05-14 1929-05-14 Process for the production of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate Expired DE502908C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEO18194A DE502908C (en) 1929-05-14 1929-05-14 Process for the production of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate
GB14720/30A GB345873A (en) 1929-05-14 1930-05-13 Process for obtaining sulphuretted hydrogen from aqueous solutions of alkali carbonate, alkali bicarbonate and alkali hydrosulphide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEO18194A DE502908C (en) 1929-05-14 1929-05-14 Process for the production of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate

Publications (1)

Publication Number Publication Date
DE502908C true DE502908C (en) 1930-07-18

Family

ID=43500210

Family Applications (1)

Application Number Title Priority Date Filing Date
DEO18194A Expired DE502908C (en) 1929-05-14 1929-05-14 Process for the production of gases rich in hydrogen sulfide from aqueous solutions of alkali carbonate, bicarbonate and sulfhydrate

Country Status (2)

Country Link
DE (1) DE502908C (en)
GB (1) GB345873A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061613B (en) * 1955-07-14 1959-07-16 Stora Kopparbergs Bergslags Ab Process for the regeneration of alkali sulphite or alkali bisulphite pulp waste liquors
DE1196489B (en) * 1959-05-04 1965-07-08 Babcock & Wilcox Co Process for the recovery of chemicals from a lye containing alkali, especially sodium salts of sulphurous acid
DE2741613A1 (en) * 1976-09-15 1978-03-16 Rockwell International Corp PROCESS FOR PROCESSING AN ALKALIMETAL SULFIDE SOLUTION

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2567867A (en) * 1946-10-04 1951-09-11 West End Chemical Company Process for desulfurizing of searles lake brine
US2611682A (en) * 1949-12-07 1952-09-23 Mannbro Nils Viktor Methods of recovering hydrogen sulfide from sulfide containing soda liquors obtainedin cellulose production
US3653829A (en) * 1970-01-29 1972-04-04 Catalytic Construction Co Recovery of sulfur values from brine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1061613B (en) * 1955-07-14 1959-07-16 Stora Kopparbergs Bergslags Ab Process for the regeneration of alkali sulphite or alkali bisulphite pulp waste liquors
DE1196489B (en) * 1959-05-04 1965-07-08 Babcock & Wilcox Co Process for the recovery of chemicals from a lye containing alkali, especially sodium salts of sulphurous acid
DE2741613A1 (en) * 1976-09-15 1978-03-16 Rockwell International Corp PROCESS FOR PROCESSING AN ALKALIMETAL SULFIDE SOLUTION

Also Published As

Publication number Publication date
GB345873A (en) 1931-04-02

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