Solid carbon dioxide absorbent including amine or a compound thereof for use in the capturing process of dry carbon dioxide, and method for manufacturing same
The present invention relates to a method for manufacturing a carbon dioxide absorbent and to the absorbent manufactured by the method. The method comprises: (A) a step of preparing a slurry composition including a carrier composition containing a support, an inorganic binder, and a solvent; (B) a step of preparing solid particles by spray drying the thus-prepared slurry composition; (C) a step of manufacturing a carrier by dry calcining the thus-prepared solid particles; and (D) a step of receiving an amine compound into the pores of the thus-manufactured carrier. According to the absorbent of the present invention, an absorbing reaction and a regenerating reaction at a low temperature range (less than or equal to 100° C. may be conducted, and therefore, the cost for capturing CO 2 in a dry capturing process may be expected to decrease.
1. A carbon dioxide absorbent manufactured by a method, the method comprising the steps of:
(A) preparing a slurry composition including a carrier composition containing a support and an inorganic binder, and a solvent;
(B) preparing solid particles by spray drying the prepared slurry composition;
(C) manufacturing a carrier by dry calcining the solid particles at a temperature between about 350° C. and about 1,000° C. and under an atmosphere of one of air, nitrogen, helium, and a reducing gas, wherein the carrier has a specific surface area of between 50 m 2 /g and 500 m 2 /g; and
(D) receiving an amine compound into pores of the manufactured carrier.
2. The carbon dioxide absorbent of claim 1 , wherein the carrier has a specific surface area of between 150 m 2 /g and 400 m 2 /g.