The invention discloses a preparation method of an efficient
sodium-based
solid decarburization adsorbent. Pre-treatment including washing,
roasting and
grinding is conducted on a gamma
aluminium oxide carrier; an incipient-wetness impregnation method is adopted, wherein the carrier is impregnated in
dopant impregnation liquid with the
electrolyte cation concentration of 0.1-2.0 mol / L for 6-8 hours, and then the carrier is subjected to
drying,
roasting and
grinding for standby use; a modified carrier obtained in the last step is impregnated in an isovolumetric
sodium carbonate solution with the concentration of 0.8-3.8 mol / L for 6-8 hours and subjected to
drying,
roasting and
grinding for standby use; furthermore, a modified adsorbent is impregnated in another
sodium-based amino secondaryactive component solution for 6-8 hours and subjected to
drying, roasting and grinding, and finally, the target adsorbent is obtained. The adsorbent is mainly applied to thermal power
plant tail smokecarbon dioxide purification, and the adsorption /
desorption conditions are mild; meanwhile,the adsorbent has the advantages that the preparation method is simple, raw materials are cheap and easy to obtain, large-scale production is feasible, the adsorbent is stable in structure, all components are evenly dispersed, and the
decarburization performance is efficient and stable and the like.