BE414501A

BE414501A -

Info

Publication number: BE414501A
Authority: BE
Priority date: 1936-03-19
Filing date: 1936-03-19
Publication date: 1936-04-30

Description

  

  PERFECTIONNEMENTS AUX MODES D'UTILISATION

  
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On sait que des industries importantes comme, par exemple celle de l'ammoniac, exigent des volumes considérables d'hydrogène et que l'on extrait fréquemment ceux-ci des gaz de fours à coke ou de mélanges gazeux analogues.

  
Le traitement du gaz de houille en vue de l'extraction de l'hydrogène se fait le plus souvent par la méthode de liquéfaction fractionnée. Il reste un

  
résidu appelé gaz riche parce que sa teneur en méthane est particulièrement

  
 <EMI ID=2.1> 

  
5 % de H2 et 16 % d'azote. 

  
On a songé à soumettre ce gaz riche en méthane à un cracking destructif, de façon à réaliser des mélanges gazeux aptes aux synthèses successives du méthanol et de l'ammoniaque. 

  
Mais si l'on désire utiliser ce mélange gazeux à d'autres synthèses,

  
comme par exemple à celle des hydrocarbures liquides analogues aux essences

  
 <EMI ID=3.1>   <EMI ID=4.1> 

  
gazogène spécial alimenté en Oxygène-

  
Il a été trouvé un mode de travail qui permet d'éviter cette complication et de produire simultanément, sans difficultés spéciales, les gaz nécessaires

  
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Le principe de cette façon de faire est le suivant*

  
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été remplacé par de l'hydrogène et de l'oxyde de carbone et une petite

  
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A titre d'exemple, 1000 m<3> d'un gaz de fours de la teneur suivante

  

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  IMPROVEMENTS IN MODES OF USE

  
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It is known that large industries, such as, for example, the ammonia industry, require considerable volumes of hydrogen and that these are frequently extracted from coke oven gases or similar gas mixtures.

  
The treatment of coal gas for the extraction of hydrogen is most often done by the fractional liquefaction method. There remains one

  
residue called rich gas because its methane content is particularly

  
 <EMI ID = 2.1>

  
5% H2 and 16% nitrogen.

  
Consideration has been given to subjecting this methane-rich gas to destructive cracking, so as to produce gas mixtures suitable for successive syntheses of methanol and ammonia.

  
But if one wishes to use this gas mixture for other syntheses,

  
as for example that of liquid hydrocarbons similar to gasoline

  
 <EMI ID = 3.1> <EMI ID = 4.1>

  
special gasifier supplied with Oxygen

  
A way of working has been found which makes it possible to avoid this complication and to produce simultaneously, without special difficulties, the necessary gases.

  
 <EMI ID = 5.1>

  
The principle of this way of doing things is as follows *

  
 <EMI ID = 6.1>

  
been replaced by hydrogen and carbon monoxide and a small

  
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For example, 1000 m <3> of a furnace gas of the following content

  

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Claims

The hydrogen obtained, mixed with nitrogen, is sent to the synthesis of ammonia.

This new way of working has the advantage that the nitrogen necessary for this synthesis is a by-product of the manufacture of the oxygen used for cracking, hence a definite economic advantage.

The part of the cracked gas not yet used is mixed with the gas <EMI ID = 13.1>

suitable for the synthesis of methanol and gasoline from mixtures of CO

It is possible to adopt other arrangements which moreover fall within the scope of the present invention. Thus, by way of non-limiting example, the mixture of gas rich in CO and cracked gas can obviously be made in any proportion depending on the contents of H2 and CO which it is desired to obtain.

Ordinary water gas can still be added to cracked gas if the total quantity of gas available for the manufacture of synthesized gasoline is to be increased.

As can be seen, a set of industrial syntheses is thus produced in conditions of really remarkable economy and simplicity, not yet met until now.

CLAIMS. -

1.- Process for treating coal gas or similar gases containing

hydrocarbons, characterized in that various industrial syntheses are carried out simultaneously from hydrogen or hydrogen and carbon oxides. 2.- Method according to 1, characterized in that the gases serving as material

first are subjected to an oxidative cracking at very high temperature in

3.- Process according to 1 and 2, characterized in that a part of the cracked gas

is used according to the known processes for the production of hydrogen necessary for the synthesis of ammonia or for any other hydrogenation operation.

synthesis of ammonia comes from the manufacture of oxygen used in the cracking operation.

of the hydrogen production is wholly or partly mixed with the part of cracked gas not yet used.

6.- Process according to 1 to 5, characterized in that one adds to this portion

gas cracked from gas ordinary water.

7.- Process according to 5 or 6, characterized in that the gases obtained are

used for the synthesis of methane 1 or for the synthesis of fuels

is lying.

8.- Process according to 1 to 7, characterized in that the carbon dioxide which

getting out of hand at different stages is collected.

- gaseous products alone or in mixture: H2, CO, COZ - ammonia - methanol <EMI ID = 21.1>