도시생활폐기물 소각장에서 배출되는 이산화탄소 포집용 건식 흡착제 연구

Characterization of dry sorbents for CO2 separation from MSW incineration flue gas

In this study, commercial pellet type sorbents for the collection of CO2 from a local municipal waste incinerator were prepared and characterized in terms of adsorption efficiency by varying the operating conditions of a field process. The concentration of CO2 in the flue gas ranged from 8 to 10%, which entered the test packed bed. As a result of this experiment, the sorbent procured from A-company, which is mainly composed of calcium compounds, showed the highest adsorption efficiency. The regeneration efficiency was fairly low, however. It also was found that based on adsorption breakthrough time, the relatively low flow rate of 10 LPM into the bed allowed higher collection efficiency. The higher flow rate of 40 LPM, on the other hand, tended to decrease the retention of the adsorption.