P-14.リグニンからの活性炭製造(Poster Session)

抄録

We tried to prepare an activayed carbon from lignin by chemical activation with K_2CO_3. The prepared activated carbon, which was impregnated with K_2CO_3 at the ratio of 1.0 and carbonized at 900℃, had the high specific surface area of near 2000m^2/g. We investigated the activating mechanism and it was found that there were two stages where K_2CO_3 works effectively as an activating reagent. In the lower temperature range lignin was modified by K_2CO_3 and in the higher temperature range carbon was gasified by reduction of K_2CO_3.