AT75870B - Process and apparatus for the complete washing out of the brenzene and its homologues together with naphthalene from coke oven gases freed from ammonia. - Google Patents

Process and apparatus for the complete washing out of the brenzene and its homologues together with naphthalene from coke oven gases freed from ammonia.

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Publication number
AT75870B
AT75870B AT75870DA AT75870B AT 75870 B AT75870 B AT 75870B AT 75870D A AT75870D A AT 75870DA AT 75870 B AT75870 B AT 75870B
Authority
AT
Austria
Prior art keywords
naphthalene
ammonia
coke oven
brenzene
washing out
Prior art date
Application number
Other languages
German (de)
Original Assignee
Heinrich Hirzel Ges Mit Beschr
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 Heinrich Hirzel Ges Mit Beschr filed Critical Heinrich Hirzel Ges Mit Beschr
Application granted granted Critical
Publication of AT75870B publication Critical patent/AT75870B/en

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Industrial Gases (AREA)

Description

  

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  Verfahren und Apparatanlage zur vollständigen Auswaschung des Benzols und seiner
Homologen nebst Naphthalin aus von Ammoniak befreiten Koksofengasen. 



   Zur Absorption oder Auswaschuug des Benzols nebst Homologen und des Napthalins aus den Koksofengasen mittels   Waschöien   werden in den meisten Fällen   Hordenwascher.   in vereinzelten Fällen, wo es die Druckverhältnisse erlauben, auch Kolonnenwascher aufgestellt. Trotz der grossen Dimensionen, die in neuerer Zeit behufs Erzielung einer vollkommeneren Auswaschung den   Hordenwäschern   gegeben worden sind, beträgt die Benzolauswaschung in den Wintermonaten doch nur   gegen 90   bis   920 o. iu   den Sommermonaten bedeutend weniger.

   Der Grund für die unvollkommene Auswashung des Benzols ist darin zu suchen, dass es sich als nicht angängig erweist, Gas und   Waschöl   den Wäschern mit 
 EMI1.1 
 mit möglichst niedriger Temperatur zugeführt    wirti,  
Verschiedene Verfahren sind angewendet worden,   um   eine vollkommene Auswaschung zu erreichen :

   es sind u. a.   Kühtmaschinen   eingebaut worden, um das Waschol wlit herat)zukühlen und anderes mehr, jedoch ist der Erfolg hinter den Erwartungen zurückgeblieben. weil eine Abkühlung des Gases unter 20 bis 24"C\or Eintritt in die Benzolwäscher sich 
 EMI1.2 
 hei der der eigentlichen Teerabscheidung folgenden Auswaschung des Ammoniaks nicht genügend Teer als Lösungsmittel für naphthalin vorhanden war und sich infolgedessen die Rohrleitungen hinter den Ammoniakwaschern leicht mit Naphthalin verstopften. Es unter-   t'hpb aus diesem Grunde   eine weitergehende Abkühlung des Gases und damit die für eine gute Benzolauswaschung erforderliche vorherige vollkommenere Abscheidung von Naphthalin. 



   Das nachstehend beschriebene Verfahren soll die vorerwähnten Mängel beheben unter der Voraussetzung, dass das entsprechende   Kuhlmntel   zur Verfügung steht. 



   Um das Benzol und dessen Homologe vollkommener aus den Koksofengasen abscheiden zu können als es in den bisher bekannten Hordenwascheranlagen und Kolonnen- 
 EMI1.3 
 Kolonnenwascher durch ein oder mehrere Vorwascher geleitet, welche derart eingerichtet   wind, dan   sie gleichzeitig als s Kühler und Wäscher dienen, indem sich zwischen einer Anzahl Rohrschlangenlagen, die einzeln oder in Bündeln in der verschiedensten Weise 
 EMI1.4 
 

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 EMI2.1 
   Hordenwascher   II, III und IV, welche zur Verhinderung einer Erhöhung der Gastemperatur   äusserlich mit   Wasser berieselt worden. 



    PATENT-ANSPRÜCHE:  
1. Verfahren zur vollständigen Auswaschung des Benzols und seiner Homologen nebst Naphthalin aus von Ammoniak befreiten Koksofengasen, dadurch gekennzeichnet, dass die warmen Gase unter Vermeidung einer nennenswerten Abkühlung vor ihrer Einleitung in die eigentlichen Benzolwascher in mit Benzolwaschöl berieselte, mit Kühlvorrichtungen versehene Hordenvorwascher geleitet werden, in welchen Gas und Waschmittel während der Auswaschung von Benzol und Naphthalin gleichzeigit gekühlt werden.



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  Process and apparatus for the complete washing out of benzene and its
Homologues along with naphthalene from coke oven gases freed from ammonia.



   In most cases, rack washers are used to absorb or wash out the benzene and homologues and naphthalene from the coke oven gases by means of washing oils. in isolated cases, where the pressure conditions allow, column washers are also installed. In spite of the large dimensions which have recently been given to the rack washers in order to achieve more complete washing, the benzene washing in the winter months is only significantly less around 90 to 920 ou in the summer months.

   The reason for the incomplete washing out of the benzene is to be found in the fact that it turns out to be not feasible to take gas and washing oil with the washers
 EMI1.1
 supplied at the lowest possible temperature,
Various methods have been used to achieve complete leaching:

   there are u. a. Cooling machines have been installed to cool the washing oil and other things, but the success has fallen short of expectations. because a cooling of the gas below 20 to 24 "C \ before entering the benzene scrubber itself
 EMI1.2
 When the ammonia was washed out after the actual tar separation, there was not enough tar as a solvent for naphthalene and as a result the pipes behind the ammonia washers could easily become clogged with naphthalene. For this reason, further cooling of the gas and thus the prior, more complete separation of naphthalene required for good benzene leaching is required.



   The procedure described below is intended to remedy the aforementioned deficiencies, provided that the appropriate cooling jacket is available.



   In order to be able to separate the benzene and its homologues more completely from the coke oven gases than it is in the previously known tray washer systems and column
 EMI1.3
 Column washer passed through one or more prewashers, which are set up in such a way that they simultaneously serve as coolers and scrubbers by moving between a number of coiled pipe layers, which are individually or in bundles in the most varied of ways
 EMI1.4
 

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 EMI2.1
   Horde washers II, III and IV, which were sprinkled with water from the outside to prevent an increase in the gas temperature.



    PATENT CLAIMS:
1. A process for the complete washing out of benzene and its homologues together with naphthalene from coke oven gases freed from ammonia, characterized in that the warm gases are passed into rack prewashers provided with cooling devices, while avoiding significant cooling, before they are introduced into the actual benzene washer, in which gas and detergent are cooled at the same time during the washing out of benzene and naphthalene.

 

Claims (1)

@ 2. Apparatanlage zur Ausführung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, dass vor die eigentlichen Benzolwascher Vorwascher, welche zwischen Horden einlagen Kühlschlangen besitzen, eingeschaltet sind. @ 2. Apparatus for carrying out the method according to claim 1, characterized in that before the actual benzene washer prewashers, which have cooling coils between shelves, are switched on.
AT75870D 1912-11-29 1913-10-31 Process and apparatus for the complete washing out of the brenzene and its homologues together with naphthalene from coke oven gases freed from ammonia. AT75870B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE75870X 1912-11-29

Publications (1)

Publication Number Publication Date
AT75870B true AT75870B (en) 1919-03-26

Family

ID=5637265

Family Applications (1)

Application Number Title Priority Date Filing Date
AT75870D AT75870B (en) 1912-11-29 1913-10-31 Process and apparatus for the complete washing out of the brenzene and its homologues together with naphthalene from coke oven gases freed from ammonia.

Country Status (1)

Country Link
AT (1) AT75870B (en)

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