Abstract
This study is to investigate the relationship between pore structures of activated carbons and adsorption characteristics of toluene vapor using dynamic adsorption method. The surface areas of below <TEX>$10{\AA}$</TEX> in the pore diameter of activated carbons used in this experiment were in the range of 72 -93 % of total cumulative surface area and the toluene vapor equilibrium adsorption capacities were in the range of 350 - 390mg/g. Activated carbons having larger toluene adsorption capacity than the compared activated carbons had relatively pores in the pore diameter range of <TEX>$7-10{\AA}$</TEX>. Linear relationship between equilibrium adsorption capacity and cumulative sur- face area was in the diameter range of over <TEX>$7{\AA}$</TEX>. It was thought that toluene vapor was relatively well adsorbed on surfaces of pores of over <TEX>$7{\AA}$</TEX>.
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