Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Evaluation for adsorption of low concentration of indoor $CO_2$ adsorption using zeolite and alkali metal

제올라이트 및 알칼리금속을 이용한 실내용 저농도 $CO_2$ 흡착제의 성능 평가

  • Lim, Yun-Hui (Dept. of Applied Environmental Science, Kyung Hee University) ;
  • Lee, Ju-Yeol (Dept. of Applied Environmental Science, Kyung Hee University) ;
  • Cha, Yu-Joung (Technology Institute, Anytech Co., Ltd.) ;
  • Park, Byung-Hyun (Technology Institute, Anytech Co., Ltd.)
  • 임윤희 (경희대학교 환경응용과학과) ;
  • 이주열 (경희대학교 환경응용과학과) ;
  • 차유정 ((주)애니텍 기술연구소) ;
  • 박병현 ((주)애니텍 기술연구소)
  • Received : 2013.09.10
  • Accepted : 2013.09.25
  • Published : 2013.09.30
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Abstract

In this study, $CO_2$ adsorbent was produced for minimizing energy loss due to ventilation within the building. For improved selectivity about low concentration of $CO_2$ in multiple-use facilities, the ball type adsorbent was modified from a commercial zeolite, alumina, alkali metals and activated carbon with mixing LiOH, binder, and $H_2O$. We measured specific surface area, pore characteristic, and crystal structure of the modified adsorbent. Effects of alkalization on the absorptive properties of the adsorbents were investigated. Continuous column tests (2,000 ppm) and batch chamber tests ($4m^3$, 5,000ppm) showed that the modified adsorbent indicated about the selectivity of $CO_2$ more than 9.7% (0.613 mmol/g) compared with ordinary adsorbents and $CO_2$ removal efficiency of 88.8% within l hour, respectively. It was estimated that the modified adsorbent was applicable to indoor environments.

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References

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