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Effect of Vapor Pressure of Adsorbate on Adsorption Phenomena

흡착질의 증기압이 흡착에 미치는 영향

  • Kim, Sang-Won (Department of Chemical Engineering, Pusan National University) ;
  • Kwon, Jun-Ho (Department of Chemical Engineering, Pusan National University) ;
  • Kang, Jeong-Hwa (Department of Chemical Engineering, Pusan National University) ;
  • Song, Seung-Koo (Department of Chemical Engineering, Pusan National University)
  • 김상원 (부산대학교 응용화학공학부) ;
  • 권준호 (부산대학교 응용화학공학부) ;
  • 강정화 (부산대학교 응용화학공학부) ;
  • 송승구 (부산대학교 응용화학공학부)
  • Published : 2008.01.31

Abstract

Adsorption process is largely influenced by pore structures of adsorbents and physical properties of adsorbates and adsorbents. The previous studies of this laboratory was focused on the role of pore structures of adsorbents. And we found some pores of adsorbates which have larger pore diameters than the diameter of adsorbate are filled with easily. In this study the effects of physical and chemical properties of adsorbates and adsorbents, such as pore size distribution, vapor pressure on adsorption were investigated more thoroughly at the concentration of adsorbate of 1000 ppm. The adsorption in the pore ranges of $2{\sim}4$ times of adsorbates's diameter could be explained by space filling concept. But there was some condensation phenomena at larger pore ranges. The errors between the adsorbed amount of non-polar adsorbates and the calculated amounts by considering factors were found to be 44.46%, positively, and -142%, negatively. When vapor pressure is considered, the errors between the adsorbed amount of non-polar adsorbates and the calculated amounts were in the range of $1.69%{\sim}32.25%$ positively, and negatively $-1.08%{\sim}-63.10%$.

Keywords

References

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