2-04　種々の炭素源から調製した活性炭のCO₂吸着性能

抄録

In this study we prepared porous carbon samples from various carbonaceous materials, such as biomass and coal, and evaluated their CO₂ adsorption performance. First, activated carbons were prepared by heat treatment of a mixture of melamine as a nitrogen source and K₂CO₃ as a chemical activator added to the carbonaceous resource, and their pore properties were investigated in detail. Then, the CO₂ adsorption performance of the prepared activated carbons was tested. It was found that activated carbon with well-developed pores could be prepared by using carbonaceous resources with low carbon and low ash contents. The specific surface area (SAA), micropore volume and CO₂ adsorption of the prepared activated carbon showed relatively good correlation. In other words, we found that the SAA and micropore volume affected the CO₂ adsorption performance. Additionally, the optimum micropore diameter for CO₂ adsorption was identified as 0.7–1.0nm.