Patent ID: 6276441
Filing Date: 2001-08-21
Classification: B01J,F28D

Abstract:
A regenerator comprising,a first and second circulating fluidized bed reactors having chambers with lower parts and upper parts, and heat-transferring pulverized solids medium therein;first and second cyclones connected each to said upper parts of said chambers of said first and second circulating fluidized bed reactors;a recirculating channel connecting a lower part of said first cyclone to said lower part of said chamber of said first circulating fluidized bed reactor;a first crossover channel connecting said lower part of said first cyclone to said lower part of said chamber of said second circulating fluidized bed reactor;a second crossover channel connecting a lower part of said second cyclone to said lower part of said chamber of said first circulating fluidized bed reactor;such that a first and second fluid flows are introduced to said lower parts of said chambers of said first and second circulating fluidized bed reactors and contacted with said heat-transferring pulverized solids medium therein.