Devices for cooling gases which form a corrosive condensation product upon cooling

Abstract

A device for cooling hot gases (quencher) with the formation of a corrosive condensation product, which device has a pressure-resistant container and at least one corrosion-resistant internal gas guide pipe, and to a method of cooling gases that form corrosive condensation products, which method uses the mentioned device.

1 . A device for cooling a hot gas, the device comprising a pressure-resistant container having an inner surface and a corrosion-resistant gas guide pipe having a first and a second end, the gas guide pipe disposed in the container such that contact between at least a majority of the gas and the inner surface is avoided as the gas moves from the first end through the guide pipe to the second end.  
   
   
       2 . The device according to  claim 1 , wherein the pressure-resistant container comprises a material selected from the group consisting of steel alloys, tantalum and alloys thereof.  
   
   
       3 . The device according to  claim 2 , wherein the inner surface is at least partly lined with a material selected from the group consisting of plastics and metals.  
   
   
       4 . The device according to claim, wherein the corrosion-resistant gas guide pipe comprises a material selected from the group consisting of graphite, ceramics, plastics, and combinations thereof.  
   
   
       5 . The device according to  claim 1 , wherein the corrosion-resistant gas guide pipe is comprised of a material that is not pressure-resistant.  
   
   
       6 . The device according to  claim 1 , wherein the container further comprises a pressure-resistant gas inlet nozzle.  
   
   
       7 . The device according to  claim 6 , wherein the gas inlet nozzle is insulated, heated, or insulated and heated.  
   
   
       8 . The device according to  claim 6 , further comprising a protective gas contained in an area within the container proximate to the inlet nozzle and the inner surface.  
   
   
       9 . The device according to  claim 1 , further comprising a cooling medium disposed within the container and surrounding at least a portion of the gas guide pipe.  
   
   
       10 . The device according to  claim 9 , wherein at least part of the inner surface is contacted by the cooling medium.  
   
   
       11 . The device according to  claim 9 , wherein the inner surface and the gas guide pipe are separated by the cooling medium.  
   
   
       12 . Device according to  claim 1 , further comprising a spray nozzle disposed in an upper portion of the gas guide pipe.  
   
   
       13 . A method of cooling hot gases, the method comprising: 
 (a) providing a device according to  claim 1;     (b) introducing a hot gas into the container; and    (c) contacting the hot gas with a cooling medium in the gas guide pipe.    
   
   
       14 . The method according to  claim 13 , wherein the hot gas is contacted with the cooling medium at a pressure of from −1 to 1000 bar.  
   
   
       15 . The method according to  claim 13 , wherein the hot gas has an entry temperature of 100 to 2000° C.  
   
   
       16 . The method according to  claim 13 , wherein the hot gas and the cooling medium are passed through the gas guide pipe in a concurrent manner.  
   
   
       17 . The method according to  claim 13 , wherein the hot gas and the cooling medium are passed through the gas guide pipe in a counter-current manner.