Kinetic studies of phytosterol adsorption on zeolite

Yu Hsuan Chuang, Yi Hsu Ju*, Arief Widjaja

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Equilibrium isotherms of sterol adsorption on zeolite show the characteristics of irreversible equilibrium adsorption. First order and second order surface adsorption control mechanisms as well as micropore diffusion control model failed to satisfactorily describe the kinetics of sterol adsorption on zeolite. From the analysis of adsorption data, it was found that macropore diffusion control model satisfactorily describes the kinetics of sterol adsorption on zeolite. The effect of temperature on the diffusivity during adsorption was found to conform to the Eyring equation. It was shown that a change in temperature has a negligible effect on the selectivity of sterol adsorption on zeolite.

Original languageEnglish
Pages (from-to)611-624
Number of pages14
JournalSeparation Science and Technology
Volume42
Issue number3
DOIs
Publication statusPublished - Feb 2007
Externally publishedYes

Keywords

  • Adsorption
  • Campesterol
  • Kinetic model
  • Zeolite
  • β-sitosterol

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