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Preparation of Pelletized Porous Adsorbent with Pyrolysis Temperature and Its Toluene Gas Adsorption Characteristics

열분해 조건에 따른 펠렛형 다공성 흡착재의 제조 및 톨루엔 가스 흡착 특성

  • Kim, Do Young (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Kim, Yesol (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Cho, Seho (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Jung, Jin-Young (Department of Applied Chemistry and Biological Engineering, Chungnam National University) ;
  • Kim, Min Il (GTsien) ;
  • Lee, Young-Seak (Department of Applied Chemistry and Biological Engineering, Chungnam National University)
  • 김도영 (충남대학교 바이오응용화학과) ;
  • 김예솔 (충남대학교 바이오응용화학과) ;
  • 조세호 (충남대학교 바이오응용화학과) ;
  • 정진영 (충남대학교 바이오응용화학과) ;
  • 김민일 (지티사이언) ;
  • 이영석 (충남대학교 바이오응용화학과)
  • Received : 2013.05.06
  • Accepted : 2013.08.21
  • Published : 2013.12.10

Abstract

In this study, we prepared pelletized porous carbon adsorbent (PCA) according to the different pyrolysis temperature using activated carbon and polyvinyl alcohol (PVA) as a binder for the removal of toluene, which is one of the representative volatile organic compounds (VOCs). We investigated physical characteristics of PCA using FE-SEM, BET, TGA and evaluated their adsorption capacity for toluene using GC. It was confirmed that the formability of pellets composed of the activated carbon, PVA and solvent of mass mixing ratio was 1 : 0.2 : 0.8 was the most outstanding. Toluene adsorption capacity was evaluated by measuring the maximum time when more than 99% of toluene adsorbed on the pellet. The specific surface area of the adsorbent pyrolyzed at $300^{\circ}C$ was measured as 4.7 times in $941.9m^2/g$ compared to that of the unpyrolyzed pellet. Micropore volume and toluene adsorption capacity of PCA increased fivefold to be 0.30 cc/g and thirteenfold to be 26 hours compared to that of the unpyrolyzed pellet, respectively. These results were attributed to the change of pore size and specific surface area due to the PVA content and the different pyrolysis temperature.

Acknowledgement

Supported by : 중소기업청

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