Preparation of Activated Carbon from Pine Bark by Steam Activation

소나무 수피로부터 수증기 활성화에 의한 활성탄 제조

  • 문성필 (전북대학교 농업과학 기술연구소) ;
  • 황의동 (전북대학교 농업과학 기술연구소)
  • Published : 2002.09.01

Abstract

Activated carbons were prepared from pine bark by steam activation, and pore structures and specific surface areas were then investigated. Three different types of kilns were used for the activation. When the stationary-vertical-or stationary-horizontal-type kiln was used for the steam activation to prepare an activated carbon from the bark, it was not possible to produce activated carbon having high specific surface areas exceeding 1,000 $m^2/g$. Using bark powder improved the specific surface area, but it was still not high enough. When the rotary-horizontal-type kiln was used for the activation, the activated carbons prepared had high specific surface areas of more than 1,000$m^2/g$, which was similar to a commercial first-grade activated carbon. The activated carbon prepared by the rotary kiln had a wide distribution of pore size ranging from microporous to mesoporous.