Carbon dioxide absorbent, carbon dioxide separation and recovery device, and carbon dioxide separation and recovery method

摘要

PPROBLEM TO BE SOLVED: To provide a carbon dioxide absorbent that can be applied to hot gas, is never micronized even if it is repeatedly employed, and whose absorption amount per unit volume of the absorbent is large, and a carbon dioxide separating apparatus and a method for separating carbon dioxide, using the same. PSOLUTION: The carbon dioxide absorbent includes a composite oxide comprising a transition metal element M and an alkaline earth mental element A, wherein cobalt is contained in the transition metal element M and calcium is contained in the alkaline earth metal element A, and also the apparatus and method for separating carbon dioxide using the carbon dioxide absorbent are provided. PCOPYRIGHT: (C)2010,JPO&INPIT