3 硫黄添加による石炭からの重金属吸着剤の作成(改質,処理,クリーン化)

抄録

We attempt to prepare heavy metal adsorbent from coal with a simple-two step process using rapid pyrolysis and sulfur impregnation. Porous carbon material with high specific surface area can be obtained by rapid pyrolysis using free-fall reactor, and can added sulfur into rapid pyrolysis char using H_2S gas. The sulfur impregnated char was more effective for Pb, Cd and Zn adsorption than raw coal and rapid pyrolysis char, and its adsorption capacity was favorable to commercial charcoal.