Dynamic Adsorption of CO2/N2 on Cation-Exchanged Chabazite SSZ-13: A Breakthrough Analysis

Authors
  • H.T. Schaef
  • B.P. McGrail
  • M.A. Derewinski
  • R.K. Motkuri
Publication date 02-05-2018
Journal ACS Applied Materials and Interfaces
Volume | Issue number 10 | 17
Pages (from-to) 14287-14291
Number of pages 5
Organisations
  • Faculty of Science (FNWI) - Van 't Hoff Institute for Molecular Sciences (HIMS)
Abstract
Alkali-exchanged SSZ-13 adsorbents were investigated for their applicability in separating N2 from CO2 in flue gas streams using a dynamic breakthrough method. In contrast to IAST calculations based on equilibrium isotherms, K+ exchanged SSZ-13 was found to yield the best N2 productivity, comparable to Ni-MOF-74, under dynamic conditions where diffusion properties play a significant role. This was attributed to the selective, partial blockage of access to the chabazite cavities, enhancing the separation potential in a 15/85 CO2/N2 binary gas mixture.
Document type Article
Note With supplementary file
Language English
Published at https://doi.org/10.1021/acsami.8b03848
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