Patent ID: 8349058

Claim:
A regeneration reactor of a CO 2 capture system which comprises a capture reactor selectively adsorbing CO 2 by bringing a CO 2 -containing gas supplied from the outside into contact with a solid adsorbent, a cyclone centrifugally separating the solid adsorbent adsorbed with CO 2 in the capture reactor from the gas, and a regeneration reactor separating the adsorbed CO 2 by supplying a regenerative gas to the solid adsorbent supplied from the cyclone, the regeneration reactor including a chamber having a slope which is widened toward an upper part and narrowed toward a lower part and therefore capable of preventing a pressure at the upper part from being increased as the separation quantity of the CO 2 separated at the solid adsorbent increases at it goes upward to the upper part by the regenerative gas supplied at the lower part, such that a flow velocity in the chamber can be constantly maintained, wherein the chamber is designed to satisfy a following equation: Q out/ Q in=3˜4 wherein Qout is the flow quantity at upper part including CO 2 separated at the solid adsorbent and the regenerative gas discharged to upper part of the chamber and Qin is the injected flow quantity of the injected regenerative gas.