, Volume 7, Issue 2, pp 91–103 | Cite as

Adsorption Equilibrium and Dynamics of Methyl Iodide in a Silver Ion-Exchanged Zeolite Column at High Temperatures

  • Byung Seon Choi
  • Geun Il Park
  • Joon Hyung Kim
  • Jae Wook Lee
  • Seung Kon Ryu


An extensive evaluation was carried out to determine the optimal silver ion-exchanged level for the removal of methyl iodide at high temperatures up to 400°C. Based on the degree of silver utilization, the optimal silver loading and temperature were about 10 wt% and 175°C, respectively. The physical and chemical properties of silver ion-exchanged zeolite were characterized by instrumental analysis such as BET, TG/DTA and SEM-EDS. Adsorption dynamics was also studied at different temperatures, and methyl iodide concentrations. A simple dynamic model was formulated by employing the linear driving force (LDF) approximation inside adsorbent particles, and the nonisothermal Langmuir-Freundlich equation. The model equations were solved numerically by an orthogonal collocation method. The proposed dynamic model satisfactorily simulated the experimental breakthrough results.

high temperature methyl iodide silver ion-exchanged zeolite adsorption equilibrium dynamic model 


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Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • Byung Seon Choi
    • 1
  • Geun Il Park
    • 1
  • Joon Hyung Kim
    • 1
  • Jae Wook Lee
    • 2
  • Seung Kon Ryu
    • 3
  1. 1.Korea Atomic Energy Research InstituteTaejonKorea
  2. 2.Department of Chemical EngineeringSeonam UniversityNamwonKorea
  3. 3.Department of Chemical EngineeringChungnam National UniversityTaejonKorea

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