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Adsorption Characteristics of Toluene Vapor According to Pore Size Distribution of Activated Carbon

활성탄의 세공분포에 따른 Toluene Vapor의 흡착특성

  • Published : 2006.07.01

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 $10{\AA}$ 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 $7-10{\AA}$. Linear relationship between equilibrium adsorption capacity and cumulative sur- face area was in the diameter range of over $7{\AA}$. It was thought that toluene vapor was relatively well adsorbed on surfaces of pores of over $7{\AA}$.

Keywords

Activated carbon;Adsorption;Toluene vapor;Breakthrough time;Pore structure

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