DE340753C - Process for the production of a mixture of hydrogen and nitrogen suitable for the synthesis of ammonia - Google Patents

Process for the production of a mixture of hydrogen and nitrogen suitable for the synthesis of ammonia

Info

Publication number
DE340753C
DE340753C DE1920340753D DE340753DD DE340753C DE 340753 C DE340753 C DE 340753C DE 1920340753 D DE1920340753 D DE 1920340753D DE 340753D D DE340753D D DE 340753DD DE 340753 C DE340753 C DE 340753C
Authority
DE
Germany
Prior art keywords
hydrogen
nitrogen
ammonia
mixture
synthesis
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
DE1920340753D
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.)
Norsk Hydro Elektrisk Kvaelstof AS
Original Assignee
Norsk Hydro Elektrisk Kvaelstof AS
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 Norsk Hydro Elektrisk Kvaelstof AS filed Critical Norsk Hydro Elektrisk Kvaelstof AS
Application granted granted Critical
Publication of DE340753C publication Critical patent/DE340753C/en
Expired legal-status Critical Current

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B3/00Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
    • C01B3/02Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
    • C01B3/025Preparation or purification of gas mixtures for ammonia synthesis

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)

Description

In der letzten Zeit werden große Mengen von Gemischen von Stickstoff und Wasserstoff verbraucht; es sind infolgedessen viele Vorschläge zur Gewinnung dieser Gase gemacht worden.Lately large amounts of mixtures of nitrogen and hydrogen have been used consumed; as a result, many proposals have been made for the recovery of these gases been.

Gegenstand vorliegender Erfindung ist ein Verfahren, das ermöglicht, in besonders vorteilhafter Weise Gemische von Wasserstoff und Stickstoff darzustellen, da hierzu nur Wasser und Luft und als Reduktionsmittel in der Natur vorkommende Sulfide, Kiese, Blenden usw. erforderlich sind.The present invention is a method that enables particularly advantageous Way to represent mixtures of hydrogen and nitrogen, as only water and air and as a reducing agent Naturally occurring sulphides, gravel, blends, etc. are required.

Das Verfahren ist dadurch gekennzeichnet, daß man unter Benutzung an sich bekannter Reaktionen, einerseits den Wasserstoff durch Einwirkung von Wasser auf Sulfide, z. B. Kiese, Blenden, bei erhöhter Temperatur, anderseits den Stickstoff durch Einwirkung von· Luft auf Sulfide bei erhöhter Temperatur gewinnt, wobei die durch die Reaktionen entstehenden Schwefligsäuregase je für sich in Basen, z. B. Kalk, Ammoniak, zu Sulfiten gebunden werden, und. hierauf mittels dieser Sulfitlösungen, insbesondere des Ammoniumsulfits, die letzten Spuren des Sauerstoffs aus dem zuvor enthaltenen Stickstoffgas wegnimmt. Dieses Verfahren stellt eine Kombination mehrerer an sich, bekannter Vorgänge dar, durch deren Vereinigung ein bedeutender technischer Fortschritt erzielt wird.The method is characterized in that one uses known per se Reactions, on the one hand, the hydrogen by the action of water on sulfides, z. B. Gravel, blends, at elevated temperature, on the other hand the nitrogen through action from · air to sulphides at elevated temperature wins, which by the reactions sulphurous acid gases produced in bases, e.g. B. lime, ammonia, to sulfites be bound, and. then by means of these sulfite solutions, in particular ammonium sulfite, removes the last traces of oxygen from the previously contained nitrogen gas. This method is a combination of several known processes through the combination of which a significant technical advance is achieved.

Unter Anwendung von Schwefelkies kann das Verfahren beispielsweise wie folgt durchgeführt werden:Using pebbles, the method can be carried out, for example, as follows will:

Schwefelkies wird mit Wasser bei hoher Temperatur behandelt. Hierdurch erhält man Eisenoxyd und ein Gasgemisch, bestehend aus Schwefeldioxydi und Wasserstoff. Dies Gasgemisch wird dadurch von Schwefeldioxyd befreit, daß es über Wasser oder Basen, wie ·ζ. B. Kalk, geleitet wind. Das 4" Schwefeldioxyd wird absorbiert, während reines Wasserstoffgas unabsofbiert zurückbleibt. Pebbles are treated with water at a high temperature. This gives you Iron oxide and a gas mixture consisting of sulfur dioxide and hydrogen. this The gas mixture is freed from sulfur dioxide by pouring it over water or Bases, such as · ζ. B. Lime, headed wind. The 4 " Sulfur dioxide is absorbed, while pure hydrogen gas remains unabsorbed.

In einem anderen Apparat wind Schwefelkies mittels eines möglichst geringen Luft- +5 Überschusses geröstet. Man erhält hierdurch Eisenoxyd und ein Gasgemisch', hauptsächlich bestehend aus Schwefeldioxyd und Stickstoff. Die Gase werden, wie oben angegeben, von Schwefeldioxyd befreit, wodurch man mit Sauerstoff verunreinigtes Stickstoffgas erhält. Dieser sauerstoffhaltige Stickstoff wird mit dem erhaltenen Sulfit behandelt, wodurch der Sauerstoff unter Bildung von Sulfat absorbiert und reines Stickstoffgas erhalten wird.In another device, pebbles are blowing roasted with as little air +5 excess as possible. This gives you Iron oxide and a gas mixture, consisting mainly of sulfur dioxide and nitrogen. The gases are, as indicated above, freed from sulfur dioxide, whereby one receives nitrogen gas contaminated with oxygen. This oxygen-containing nitrogen is treated with the obtained sulfite, whereby the oxygen with the formation of sulfate absorbed and pure nitrogen gas is obtained.

Der so gewonnene Stickstoff wird mit dem Wasserstoff gemischt, welcher wie ofren angegeben erhalten worden ist, und man erhält ein Gemisch, welches für die Ammoniaksyn-The nitrogen obtained in this way is mixed with the hydrogen, which is stated as open has been obtained, and a mixture is obtained, which for the ammonia syn-

these Anwendung finden kann, während man als Nebenprodukt Schwefeldioxyd erhält.This application can be found while sulfur dioxide is obtained as a by-product.

Claims (1)

Patent-Anspruch:Patent claim: Verfahren zur Herstellung eines fürMethod of making a for die Ammoniaksynthese geeigneten Gemisches von Wasserstoff und Stickstoff, dadurch gekennzeichnet, daß man unter Benutzung an sich bekannter Reaktionen, to einerseits den Wasserstoff durch Einwirkung von Wasser auf Sulfide, z. B. Kiese, Blenden, bei erhöhter Temperatur, anderseits den Stickstoff durch Einwirkung von Luft auf Sulfide bei erhöhter Temperatur gewinnt, wobei die diurch die Reaktionen entstehenden Schwefligsäuregase je für sich in Basen, z. B. Kalk, Ammoniak, zu Sulfiten gebunden werden, und hierauf mittels dieser Sulfitlösungen, insbesondere des Ammoniumsulfites, die letzten Spuren des Sauerstoffes aus dem zuvor erhaltenen Stickstoffgas wegnimmt.the ammonia synthesis suitable mixture of hydrogen and nitrogen, characterized in that using reactions known per se, on the one hand the hydrogen by action from water to sulphides, e.g. B. gravel, panels, at elevated temperature, on the other hand the nitrogen is obtained by the action of air on sulphides at an elevated temperature, which is the result of the reactions sulphurous acid gases produced in bases, e.g. B. lime, ammonia, too Sulphites are bound, and then by means of these sulphite solutions, in particular of ammonium sulfite, the last traces removes oxygen from the previously obtained nitrogen gas.
DE1920340753D 1919-05-23 1920-04-18 Process for the production of a mixture of hydrogen and nitrogen suitable for the synthesis of ammonia Expired DE340753C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO143854X 1919-05-23

Publications (1)

Publication Number Publication Date
DE340753C true DE340753C (en) 1921-09-16

Family

ID=19904454

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1920340753D Expired DE340753C (en) 1919-05-23 1920-04-18 Process for the production of a mixture of hydrogen and nitrogen suitable for the synthesis of ammonia

Country Status (3)

Country Link
DE (1) DE340753C (en)
FR (1) FR514171A (en)
GB (1) GB143854A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931292C (en) * 1952-11-30 1955-08-04 Standard Elek Zitaets Ges Ag Multiple contact field in telecommunications, especially telephone systems

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE931292C (en) * 1952-11-30 1955-08-04 Standard Elek Zitaets Ges Ag Multiple contact field in telecommunications, especially telephone systems

Also Published As

Publication number Publication date
FR514171A (en) 1921-03-04
GB143854A (en) 1920-11-04

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