Effect of Ion Exchanged to the CO2 Adsorption on MFI Zeolites

  • Sang Kompiang Wirawan Department of Chemical Engineering, Faculty of Engineering, Gadjah Mada University, 55281 Yogyakarta, Indonesia
  • I Wayan Warmanda Geological Engineering Department, Faculty of Engineering, Universitas Gadjah Mada, Yogyakarta, Indonesia
  • Endang Tri Wahyuni Department of Chemistry, Faculty of Mathematical and Natural Sciences, Universitas Gadjah Mada, Yogyakarta, Indonesia
Keywords: CO2 adsorption, ZSM-5, Step change response, Langmuir adsorption model, FTIR spectra

Abstract

The adsorption of CO2 on MFI (HZSM-5) and ion exchanged MFI (CaZSM-5) zeolites were studied by a temperature programmed desorption (TPD). The adsorption measurements were conducted at temperatures from 323 to 473 K at atmospheric pressure. The results showed that CO2 was adsorbed on HZSM-5 by one type of adsorption, and on CaZSM-5 zeolites by at least two types of adsorption over the temperature range studied. One was a weak adsorption probably due to interaction with the framework of ZSM-5, and the other was a stronger adsorption caused by interactions with the Ca cations of ZSM-5. The adsorption behavior for HZSM-5 was described by a single site Langmuir adsorption model but for CaZSM-5 a dual site Langmuir model was used. The TPD results indicated that the quantity of irreversibly adsorbed CO2 on HZSM-5 was undetectable.

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Published
2013-12-31
How to Cite
Wirawan, S. K., Warmanda, I. W., & Wahyuni, E. T. (2013). Effect of Ion Exchanged to the CO2 Adsorption on MFI Zeolites. ASEAN Journal of Chemical Engineering, 13(2), 73-82. Retrieved from https://journal.ugm.ac.id/v3/AJChE/article/view/8163
Issue
Vol 13 No 2 (2013)
Section
Articles

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