Separation of SF6 from SF6/N2 mixture using metal-organic framework MIL-100(Fe) granule

Pil Joong Kim, Young Woo You, Hosik Park, Jong San Chang, Youn Sang Bae, Chang Ha Lee, Jeong Kwon Suh

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45 Citations (Scopus)

Abstract

In this study, the MIL-100(Fe) granule (1.18-1.70mm in size) was successfully synthesized using silica sol as a binder to verify the applicability of MIL-100(Fe) as an adsorbent for SF6/N2 separation. There were no significant changes in the physical and the chemical properties after the granulation process of a powder-type MIL-100(Fe) confirmed by XRD, specific surface area and equilibrium adsorption. The adsorption capacity of SF6 on the MIL-100(Fe) granule was 1.658mmol/g, and the selectivity of SF6 over N2 was 24.4 at 1bar and 298K. Compared to Zeolite 13X, the breakthrough time of the MIL-100(Fe) granule was much shorter than Zeolite 13X at 1bar, but the breakthrough time became similar with Zeolite 13X at 9bar. The selectivity of MIL-100(Fe) was also modest for SF6 over N2, and showed only a weak pressure dependent in comparison with Zeolite 13X. The regeneration experiments with multiple runs of adsorption/desorption cycles showed that the MIL-100(Fe) granule could be regenerated with much less purge gas than Zeolite 13X, which reveals that the MIL-100(Fe) granule is a promising material for SF6/N2 separation.

Original languageEnglish
Pages (from-to)683-690
Number of pages8
JournalChemical Engineering Journal
Volume262
DOIs
Publication statusPublished - 2015 Feb 5

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Environmental Chemistry
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

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