Patent ID: 8241408
Filing Date: 2012-08-14
Classification: B01D,Y02C

Abstract:
1. A carbon dioxide (CO 2 ) capturing device comprising: a CO 2 recovery reactor 1 to permit CO 2 containing gas externally supplied to be in contact with a dry solid absorbent to capture CO 2 ; a recovery cyclone 4 connected to the recovery reactor 1 to exhaust CO 2 -free gas while separating a solid portion containing CO 2 ; a fluidized bed type regeneration reactor 2 which receives the solid portion through a solid feeding pipe 5 connected to the recovery cyclone 4 and divides the solid portion into CO 2 and the other part containing the dry solid absorbent by using a fluidizing gas fed through a fluidizing gas supply pipe 8 ; a regeneration cyclone 6 to exhaust the separate CO 2 outside in order to use CO 2 from the regeneration reactor 2 ; and a water vapor pretreatment device 3 connected to the bottom of the regeneration reactor 2 to absorb H 2 O in the dry solid absorbent and feedback the H 2 O containing absorbent to the recovery reactor 1 , wherein the water vapor pretreatment device 3 contains H 2 O formed by adding steam.