MATERIAL FOR CARBON DIOXIDE RECOVERY, METHOD FOR PRODUCING MATERIAL FOR CARBON DIOXIDE RECOVERY, AND RECOVERY METHOD OF CARBON DIOXIDE

摘要

PROBLEM TO BE SOLVED: To solve a problem in the conventional recovery method of carbon dioxide, that COis recovered based on a chemical reaction, KCO+CO+HO→2KHCO, which requires a subsequent reverse reaction of the above chemical reaction to be carried out by raising the temperature to 150°C or more in order to reuse a carbon dioxide absorbing material, but a lot of energy is required to heat the system to such a high temperature, resulting in a large environmental load.SOLUTION: The material for carbon dioxide recovery is produced via steps of: impregnating a porous material having pores with an average pore diameter of 5 nm to 50 nm with an aqueous solution of NaHCOor KHCO; and heating and drying the porous material.SELECTED DRAWING: Figure 2