화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Clean Technology, Vol.9, No.4, 153-161, December, 2003
Export Citation
낮은 분압의 VOCs의 흡착에 관한 연구
A study on VOCs Adsorption at Low Pressure
송헌택, 강성원, 민병훈1, 서성섭†
  • 홍익대학교 화학공학과, 우) 121-791 서울마포구 상수동 72-1
  • 1수원대학교 화학공학과, 우) 경기도 화성군 봉담읍 와우리 산 2-2
Hun-Taek Song, Sung-Won Kang, Byong-Hun Min1, and Sung-Sup Suh†
  • Dept. of Chem. Eng., Hongik Univeisity, Seoul 121-791, Korea
  • 1Dept. of Criem. Eng., University of Suwon, Krongki 445-743, Korea
E-mail:
초록
벤젠과 톨루엔을 활성탄에 흡착하는 공정을 개발하기 위한 기초 실험을 수행하였다. 정적흡착실험은 온도와 압력의 변화에 따른 벤젠과 톨루엔의 흡착특성을 연구하였다. 흡착제로는 활성탄 12~20mesh와 20~40mesh 를 사용하였으며 흡착질로는 벤젠, 톨루엔, 질소를 사용하였다. 실험결과는 Langmuir isotherm 으로 fitting하였고, 온도의존성을 계산하였고, 흡착열과 흡착상수를 얻었다. 이성분 정적흡착실험에서는 Langmuir isotherm parameter들이 Extended Langmuir isotherm에 일반적으로 적용할 수 있는 지를 확인하였다. 이때 사용한 실험기법은 기존의 방법에서처럼 흡착 전후의 기상의 몰분율을 측정하여 실험하는 방법이 아닌 압력변화만을 측정하는 정용적법에 기초한 방법을 사용하였다. 동적흡착실험을 수행하여 실험결과를 전사모사로부터 얻어진 결과와 비교하였다. 본 연구에서는 공정에서 흡착조건을 결정할 수 있는 기본 데이터를 획득할 수 있었다.
This study was carried out as a basic experiment for development of adsorption process in which benzene and toluene was adsorbed on activated carbon. In the static adsorption experiment, Adsorption character of benzene and toluene was studied by change of temperature and pressure. Activated carbon 12~20mesh and activated carbon 20~40mesh was used as adsorbent, Benzene, toluene and nitrogen as adsorbates. Experimental data were obtained to fitted to Langmuir isotherm and dependence was acquired. Parameter of adsorption heat and adsorption constant was obtained. Static adsorption experiment for binary mixtures confirmed that Langmuir isotherm parameters could be applicable Extended Langmuir isotherm. Experimental technique used in this study only requires pressure measurement and this technique is different from the conventional method which measures gas mole compositions before adsorption and after adsorption. The dynamic adsorption experiment was carried out and the experimental results was compared with the computer simulation results. In this study, basic data was acquired to decied adsorption conditions in the process.
Keywords:이성분;흡착;벤젠;톨루엔;랑뮤어등온식
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