Adsorption Equilibrium and Kinetics of H2O on Zeolite 13X

Young Ki Ryu, Seung Ju Lee, Jong Wha Kim, Chang Ha Lee

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

The adsorption characteristics of H2O on zeolite 13X were measured by a gravimetric method. The adsorption isotherm showed type II isotherm and was fitted by using both the excess surface work (ESW) model and Langmuir-Freundlich model. The results predicted by the Langmuir-Freundlich model were much smaller than the experimental results at higher-pressure region. However, the ESW model agreed well with the experimental data over the whole pressure region. In this case, a plot of the change in chemical potential versus the amount adsorbed gave two linear regions due to secondary effects such as capillary condensation. The experimental uptake curves were well fitted by several LDF models and solid diffusion model with the error range of 1.5-3.5%. Unlike the expectation that the more rigorous solid diffusion model would fit better, Nakao-Suzuki model showed the best agreement with experimental uptake data.

Original languageEnglish
Pages (from-to)525-530
Number of pages6
JournalKorean Journal of Chemical Engineering
Volume18
Issue number4
DOIs
Publication statusPublished - 2001 Jan 1

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Zeolites
Adsorption
Kinetics
Diffusion in solids
Chemical potential
Adsorption isotherms
Isotherms
Condensation

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Ryu, Young Ki ; Lee, Seung Ju ; Kim, Jong Wha ; Lee, Chang Ha. / Adsorption Equilibrium and Kinetics of H2O on Zeolite 13X. In: Korean Journal of Chemical Engineering. 2001 ; Vol. 18, No. 4. pp. 525-530.
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Adsorption Equilibrium and Kinetics of H2O on Zeolite 13X. / Ryu, Young Ki; Lee, Seung Ju; Kim, Jong Wha; Lee, Chang Ha.

In: Korean Journal of Chemical Engineering, Vol. 18, No. 4, 01.01.2001, p. 525-530.

Research output: Contribution to journalArticle

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