Fluidized bed method and reactor for the treatment of catalysts and catalyst carriers

Abstract

A method for the treatment of catalysts or catalyst carriers by: a) introducing and distributing a gas in the lower section of a reactor containing a catalyst or catalyst carrier bulk material; b) forming a fluidized bed in the reactor; c) treating the particles in the fluidized bed while removing the fine particles an/or retaining the course particles by means of a separating organ and d) discharging the reactor. To this end, a reactor bottom which tapers downwards is used.

1 - 5 . (canceled)  
   
   
       6 . A reactor comprising the following devices: 
 i) a reactor jacket comprising a reactor bottom which tapers downwards,    ii) a pipe for introducing gas into the reactor located beneath the reactor bottom and connected to a gas inlet pipe for gas introduction,    iii) a device for discharging the reactor located beneath the reactor bottom, and    iv) a separator.    
   
   
       7 . A reactor as claimed in  claim 6 , wherein the reactor bottom is conical.  
   
   
       8 . A reactor as claimed in  claim 7 , wherein the conical reactor bottom has a cone angle α, measured between the two internal jacket surfaces, of 10° to 120°.  
   
   
       9 . A reactor as claimed in  claim 6 , wherein an angle β measured between a gas inlet pipe of the gas inlet and the upward verticals is 20° to 70°.  
   
   
       10 . A reactor as claimed in  claim 6 , wherein the separator is a cyclone.  
   
   
       11 . (canceled)  
   
   
       12 . A reactor as claimed in  claim 8 , wherein said cone angle α is 30° to 80°.  
   
   
       13 . A reactor as claimed in  claim 9 , wherein said angle β is 30° to 60°.