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Predictive models for permeability and diffusivity of CH4 through imidazolium-based supported ionic liquid membranes

Adibi, M ; Sharif University of Technology

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  1. Type of Document: Article
  2. DOI: 10.1016/j.memsci.2011.01.024
  3. Abstract:
  4. Experimental permeability and diffusivity values for CO2 and CH4 through imidazolium-based ionic liquid 1-hexyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide ([hmim][Tf2N]) were determined in the temperature range of 300-320K using temperature correction factor defined in our previous study. According to literature, experimental values of permeability and diffusivity obtained in this study for CO2 in [hmim][Tf2N], showed good agreement with predictive models reported by other researchers. In addition, experimental values of permeability and diffusivity for CH4 in [hmim][Tf2N] as a function of pressure have been reported in this study. Considering the results of present study and those of our previous study on another imidazolium-based ionic liquid, 1-butyl-3-methylimidazolium hexafluorophosphate ([bmim][PF6]), predictive models for CH4 permeability and diffusivity through this group of ionic liquids were developed
  5. Keywords:
  6. Diffusivity ; Permeability ; Predictive models ; SILM ; CH4 ; CO2 ; Diffusivities ; Predictive models ; Carbon dioxide ; Diffusion ; Ions ; Liquid membranes ; Predictive control systems ; Ionic liquids ; Imidazole ; Ionic liquid ; Controlled study ; Experimental study ; Liquid membrane ; Membrane permeability ; Molecular model ; Pressure ; Priority journal ; Temperature dependence
  7. Source: Journal of Membrane Science ; Volume 371, Issue 1-2 , 2011 , Pages 127-133 ; 03767388 (ISSN)
  8. URL: http://www.sciencedirect.com/science/article/pii/S0376738811000299