H2S Adsorption Characteristics of KOH Impregnated Activated Carbons

KOH 첨착 활성탄에서 황화수소의 흡착 특성

  • Choi, Do-Young (Environment & Process Technology Division, Korea Institute of Science Technology) ;
  • Jang, Seong-Cheol (Environment & Process Technology Division, Korea Institute of Science Technology) ;
  • Gong, Gyeong-Tack (Environment & Process Technology Division, Korea Institute of Science Technology) ;
  • Ahn, Byoung-Sung (Environment & Process Technology Division, Korea Institute of Science Technology) ;
  • Choi, Dae-Ki (Environment & Process Technology Division, Korea Institute of Science Technology)
  • 최도영 (한국과학기술연구원 환경공정연구부) ;
  • 장성철 (한국과학기술연구원 환경공정연구부) ;
  • 공경택 (한국과학기술연구원 환경공정연구부) ;
  • 안병성 (한국과학기술연구원 환경공정연구부) ;
  • 최대기 (한국과학기술연구원 환경공정연구부)
  • Received : 2006.01.31
  • Accepted : 2006.05.22
  • Published : 2006.06.10

Abstract

Adsorption characteristics of $H_{2}S$ on KOH impregnated activated carbon were evaluated using dynamic adsorption method in a fixed bed. The pore properties, including BET's specific surface area, pore volume, pore size distribution, and mean pore diameter of these KOH impregnated activated carbons, were characterized from $N_{2}$ adsorption/desorption isotherms. Adsorption equilibrium data were correlated with Langmuir and Freundlich isotherms. The adsorption of $H_{2}S$ onto the KOH impregnated activated carbon is better fitted by the Langmuir isotherm. An increase in the content of oxygen affects the performance of KOH impregnated activated carbon to the greatest extent.

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