AT122963B - Process for generating a double gas or water gas that is rich in hydrogen and carbon dioxide. - Google Patents

Process for generating a double gas or water gas that is rich in hydrogen and carbon dioxide.

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Publication number
AT122963B
AT122963B AT122963DA AT122963B AT 122963 B AT122963 B AT 122963B AT 122963D A AT122963D A AT 122963DA AT 122963 B AT122963 B AT 122963B
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AT
Austria
Prior art keywords
gas
hydrogen
carbon dioxide
generating
rich
Prior art date
Application number
Other languages
German (de)
Inventor
Hermann Ing Hebel
Original Assignee
Vergasungs Ind A G
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.)
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Publication date
Application filed by Vergasungs Ind A G filed Critical Vergasungs Ind A G
Application granted granted Critical
Publication of AT122963B publication Critical patent/AT122963B/en

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Description

  

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 dazu, das erforderliche Heizgas zu gewinnen, das im regenerativen   Dampfüberhitzer zur Über-   hitzung des   Dampfes benötigt wird.   Es kann aber auch die Überhitzung des Dampfes durch einen rekuperativ beheizten Erhitzer (Röhrenerhitzer) erfolgen, in welchem Falle eine eigene Wärmequelle notwendig ist. 



   Für die   Durchführung   des Verfahrens der Erfindung ist ein Brennstoff erforderlich. welcher bereits bei Temperaturen zwischen   4. 500 und 6500 mit Wasserdampf   im Gaserzeuger reagieren kann. Dieser Brennstoff kann beispielsweise durch schonende Trocknung und Schwelung mittels Wasserdampf und Gas aus feuchten, bituminösen Brennstoffen erhalten werden. Die praktische Ausführung des Verfahrens scheiterte bisher dadurch. dass die Abkühlung des heiss geblasenen Brennstoffes durch die Behandlung mit Wasserdampf verhältnismässig schnell erfolgte, um so schneller, je mehr Wasserdampf angewendet wurde. Dagegen wird ein günstiges Ergebnis erzielt durch die Anwendung entsprechend grosser und überhitzter Dampfmengen. 



     Bei Verwendung bituminöser   Brennstoffe wird vorzugsweise das im unteren Generatorteil gebildete Wassergas durch einen auf dem Generator aufgebauten Schwelschacht geführt. Um den Wasserstoffgehalt möglichst hoch zu treiben, bis zirka   CO'Yo und darüber bei entsprechend   hohem Kohlendioxyd-und geringem Kohlenoxydgehalt, hat es sich als vorteilhaft herausgestellt. die   Vorentsch. welung   nur so weit zu treiben, dass noch ein Teil der Schwelgase und des Teers in dein Brennstoff enthalten ist, der zur Wassergasbildung im unteren Teil des Gaserzeugers dient. 



   Die nach dem vorliegenden Verfahren erzeugten Gase sind wegen ihres hohen Gehaltes an Wasserstoff und geringen Gehaltes an Kohlenoxyd, aber hohen Gehaltes an Kohlendioxyd besonders geeignet zur Gewinnung von reinem Wasserstoff. 



   PATENT-ANSPRÜCHE :
1. Verfahren zur Erzeugung eines   wasserstoff-und kohlensäurerei hen   Doppelgases oder Wassergases aus Koks oder getrocknten, vorzugsweise aber ungetrockneten,   bituminösen Brenn-   stoffen, insbesondere Rohbraunkohlen oder Ligniten. bei   Einhaltung von Temperaturen im   Vergasungsschacht, bei welchen die Umsetzung des eingeleiteten Wasserdampfes mit dem Brennstoff derart erfolgt.

   dass das entstehende   Gasgemenge     mehr als 50 Volumprozent Wasser-   stoff enthält, dadurch gekennzeichnet, dass diese Temperaturen vorwiegend durch Hindurchleiten von entsprechend erhitztem Wasserdampf in für die   Wassergashildung   überschüssigen Mengen aufrechterhalten werden, wobei die Vergasung des Brennstoffes, dessen Verschwelung und Trocknung'in einem Arbeitsgange erfolgen.



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 to obtain the required heating gas that is required in the regenerative steam superheater to superheat the steam. However, the steam can also be overheated by a recuperatively heated heater (tube heater), in which case a separate heat source is necessary.



   A fuel is required to carry out the method of the invention. which can react with water vapor in the gas generator at temperatures between 4,500 and 6,500. This fuel can, for example, be obtained from moist, bituminous fuels by gentle drying and smoldering using steam and gas. The practical execution of the process has so far failed. that the cooling of the hot-blown fuel by the treatment with steam took place relatively quickly, the faster the more steam was used. In contrast, a favorable result is achieved by using correspondingly large and superheated amounts of steam.



     When using bituminous fuels, the water gas formed in the lower part of the generator is preferably passed through a smoldering shaft built on the generator. In order to drive the hydrogen content as high as possible, up to about CO'Yo and above with a correspondingly high carbon dioxide and low carbon oxide content, it has been found to be advantageous. the preliminary decision Only to drive welung so far that some of the carbonization gases and tar are still contained in your fuel, which is used to form water gas in the lower part of the gas generator.



   The gases produced by the present process are particularly suitable for the production of pure hydrogen because of their high content of hydrogen and low content of carbon dioxide, but high content of carbon dioxide.



   PATENT CLAIMS:
1. A method for generating a hydrogen and carbonic acid series double gas or water gas from coke or dried, but preferably undried, bituminous fuels, in particular raw lignite or lignites. if temperatures in the gasification shaft are maintained at which the water vapor introduced is converted with the fuel.

   that the resulting gas mixture contains more than 50 percent by volume of hydrogen, characterized in that these temperatures are mainly maintained by passing through appropriately heated steam in excess amounts for the formation of water gas, the gasification of the fuel, its carbonization and drying taking place in one operation .

 

Claims (1)

2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die erforderliche Temperatur des Dampfes, wie an sich bekannt, mittels im Vergasungsschacht gewonnener Blasegase in einem regenerativ beheizten Dampfüberhitzer erzeugt wird. 2. The method according to claim 1, characterized in that the required temperature of the steam, as known per se, is generated in a regeneratively heated steam superheater by means of blown gases obtained in the gasification shaft.
AT122963D 1928-08-25 1928-08-25 Process for generating a double gas or water gas that is rich in hydrogen and carbon dioxide. AT122963B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT122963T 1928-08-25

Publications (1)

Publication Number Publication Date
AT122963B true AT122963B (en) 1931-05-26

Family

ID=3633178

Family Applications (1)

Application Number Title Priority Date Filing Date
AT122963D AT122963B (en) 1928-08-25 1928-08-25 Process for generating a double gas or water gas that is rich in hydrogen and carbon dioxide.

Country Status (1)

Country Link
AT (1) AT122963B (en)

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