대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제27권8호
  • /
  • Pages.807-812
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  • 2005
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
권호 표지

산으로 개질한 Zeolite 5A의 세공구조에 따른 Toluene Vapor의 흡착특성

Adsorption Characteristics of Toluene Vapor According to Pore Structures of Zeolite 5A Modified with Hydrochloric Acid

  • Lee, Song-Woo (Department of Chemical Engineering, Pusan National University) ;
  • Bae, Sang-Kyu (Department of Chemical Engineering, Pusan National University) ;
  • Kwon, Jun-Ho (Department of Chemical Engineering, Pusan National University) ;
  • Na, Young-Soo (Segye Chem.Co., Ltd.) ;
  • An, Chang-Doeuk (Segye Chem.Co., Ltd.) ;
  • Yoon, Young-Sam (Nakdong River Water Environment Laboratory, National Institute of Environmental Research) ;
  • Song, Seung-Koo (Department of Chemical Engineering, Pusan National University)
  • 발행 : 2005.08.31
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초록

연속식 흡착장치를 사용하여 산처리로 세공구조를 변화시킨 Zeolite 5A의 toluene vapor 평형흡착량과 흡착제의 세공직경에 따른 표면적과의 상관관계를 고찰하였다. 산처리에 의해 미세세공이 형성되기도 하지만 기존 미세세공의 직경이 점차 확대되었으며, 산의 농도가 높을수록 미세세공이 중간세공 이상으로의 변화가 많았다. 산처리한 Zeolite 5A의 toluene vapor 평형흡착량은 $15{\sim}\;mg/g70$ 사이였고 산처리에 의해 평형흡착량이 약 5배까지 증가하였으며, toluene vapor는 주로 직경 $15\;{\AA}$ 이상의 세공 표면적에 비교적 잘 흡착되는 것으로 판단되었다. Toluene vapor 평형흡착량과 총 누적표면적(total cumulative surface area)은 상관관계가 없었으며, 직경 $15\;{\AA}$ 이상의 누적표면적과는 가장 높은 상관관계(0.997)를 나타내었다.

This study is to investigate the correlation of pore structures of Zeolite 5As modified with acid and their adsorption capacity of toluene vapor using the dynamic adsorption method. The experimental results showed that the modification with acid allowed more micropores and enlarged the existing pores. Toluene vapor was mainly adsorbed on the surface of pores over $15\;{\AA}$ in diameter. The equilibrium adsorption capacity of toluene vapor of the modified Zeolite 5As was in the range of $15{\sim}70\;mg/g$ and the equilibrium adsorption capacity was increased to f times than that of the Zeolite 5A. The correlation between the total cumulative surface area and the equilibrium adsorption capacity was hard to say linear. The correlation in diameter between the cumulative surface area in the range of over $15\;{\AA}$ and the equilibrium adsorption capacity gate the highest correlation factor of 0.997.

키워드

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