Method for preparing carbon dioxide absorbent based on natural biomass and carbon dioxide absorbent based on natural biomass prepared by the same

摘要

A method for preparing a carbon dioxide absorbent based on natural biomass, and a carbon dioxide absorbent based on natural biomass that is prepared by the method. The method utilizes alkali metal or alkaline earth metal components, such as Ca, Ma and K, inherent to a natural plant biomass material. The method can provide a carbon dioxide absorbent with improved performance in an environmentally friendly manner at greatly reduced cost.

主权项

1. A method for preparing a carbon dioxide absorbent based on natural biomass, the method comprising:
(S1) carbonizing a plant biomass material containing alkali metals or alkaline earth metals by raising the temperature of the plant biomass material from 700 to 1,800° C. under a nitrogen and hydrogen in a volume ration of 1:1 atmosphere in a closed state for 0.2 to 2 hours; and (S2) pulverizing the carbonized biomass material, wherein the plant biomass material containing alkali metals or alkaline earth metals is plant cellulose selected from the group consisting of henequen fibers, abaca, jute, ramie, and mixtures thereof.