| 摘要 |
Disclosed is a dry carbon dioxide capturing device which can improve sorption efficiency by supplying sorbent for absorbing carbon dioxide or exhaust gas containing carbon dioxide to a recovery reactor in multistages at various heights. The dry carbon dioxide (CO 2 ) capturing device with multistage supply structure comprises a recovery reactor 102 to recover CO 2 by contacting a solid sorbent with exhaust gas; a recovery cyclone 110 connected to the recovery reactor 102 to discharge a gas while separating the CO 2 -captured solid sorbent only; a regenerator 114 connected to the recovery cyclone 110 to receive the CO 2 -captured solid sorbent and separate CO 2 captured in the solid sorbent; and a pretreatment reactor 122 connected to the regenerator 114 for cooling the solid sorbent free from CO 2 wherein at least one of the exhaust gas supply line and the sorbent supply line has two or more arranged according to the height of the recovery reactor 102. |
