Journal of the Korean Ceramic Society (한국세라믹학회지)

The Korean Ceramic Society (한국세라믹학회)
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Fabrication of Honeycomb Adsorbents by Using the Ceramic Paper and Adsorption Characteristics of VOC

세라믹섬유지를 사용한 허니컴 흡착소자 제조 및 VOC 흡착특성

  • Yoo, Yoon-Jong (Functional Materials Research Center, Korea Institute of Energy Research) ;
  • Cho, Churl-Hee (Functional Materials Research Center, Korea Institute of Energy Research) ;
  • Kim, Hong-Soo (Functional Materials Research Center, Korea Institute of Energy Research) ;
  • Ahn, Young-Soo (Functional Materials Research Center, Korea Institute of Energy Research) ;
  • Han, Moon-Hee (Functional Materials Research Center, Korea Institute of Energy Research) ;
  • Jang, Gun-Eik (Department of Materials Engineering, Chungbuk National University)
  • 유윤종 (한국에너지기술연구원 기능소재연구센터) ;
  • 조철희 (한국에너지기술연구원 기능소재연구센터) ;
  • 김홍수 (한국에너지기술연구원 기능소재연구센터) ;
  • 안영수 (한국에너지기술연구원 기능소재연구센터) ;
  • 한문희 (한국에너지기술연구원 기능소재연구센터) ;
  • 장건익 (충북대학교 재료공학과)
  • Published : 2002.01.01
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Abstract

The adhesion characteristics of adsorbent during impregnation of Y-type and ZSM-5type zeolites into ceramic paper were analyzed, as the amount of silica sol in slurry for impregnation was varied. 31 wt% of zeolite particle, which is useful for VOC adsorption, was evenly dispersed and adhered on ceramic paper and original crystal structure of the zeolite remained unchanged even after binder application and heat treatment. Surface area of the impregnated ceramic paper was decreased compared with that of zeolite powder. And it was found to be attributed to the reduction of volume of mesopore while the volume of micropore under $20{\AA}$ was unchanged. Zeolite-impregnated honeycomb cylinder, whose diameter and length were 10 cm and 40 cm, respectively, was subjected to adsorption/desorption test with respect to toluene, MEK, cyclohexanone. All of the VOC's were removed by adsorption with efficiency higher than 97% and from the static adsorption test, $42 Nm^3/h$ of 300 ppmv-VOC-laden air was calculated be treated continuously, when the honeycomb was used in an adsorptive rotor system.

세라믹섬유지에 VOC 흡착특성이 우수한 제올라이트-Y와 ZSM-5를 담지시키기 위하여 바인더로 사용된 실리카 졸의 첨가량 변화에 따른 흡착제의 표면고착특성을 고찰하였다. 세라믹섬유지에 담지된 제올라이트는 입자가 고르게 분산되어 31 wt% 정도가 고착되었으며, X-ray 회절분석결과 담지 후 열처리와 바인더의 사용에도 불구하고 제올라이트는 원래의 결정구조를 유지하였다. 담지된 제올라이트의 비표면적 감소는 메조포어의 감소에 따른 것으로, VOC 흡착에 가장 유효한 $20{\AA}$ 미만의 마이크로포어에는 영향을 미치지 않음을 알 수 있었다. 세라믹섬유지로 제조한 직경 10cm, 길이 40cm의 허니컴에 제올라이트를 담지시켜 톨루엔, MEK, Cyclohexanone에 대한 흡착실험결과 흡착제거효율이 모두 97% 이상으로 나타났으며, 회전식 흡착농축장치에 적용할 경우 VOC 농도 300 ppmv의 오염공기를 $42 Nm^3/h$ 정도 연속적으로 처리할 수 있는 흡착특성을 나타내었다.

Keywords

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  1. Toluene and MEK Adsorption Behavior of the Adsorption System Using Honeycomb Adsorption Rotor vol.40, pp.8, 2005, https://doi.org/10.1081/SS-200056664