Pressure resistance of thin ionic liquid membranes using tailored ceramic supports

Abstract

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Natural gas purification using supported ionic liquid membrane

“…One technology that has attracted interest is the use of supported ionic liquid membranes (SILMs) for gas sweetening [19,20]. SILMs are produced by impregnating a porous membrane with a small amount of IL.…”

Feasibility study of CO2/N2 separation intensification on supported ionic liquid membranes by commonly used impregnation methods

“…Generally, the polymeric and inorganic membranes can be used as a support. SILMs based on a ceramic support can resist elevated pressures and temperatures up to 5.5 MPa and 453 K. 50,55 Choosing a proper support with relevant pore diameters may help to decrease the chance of ILs loss from the large pores of the membrane and improve the SILMs stability. 56 Some literature data conclude that membranes with pore diameters in the range of 100-200 nm are recommended for SILMs.…”

Recent Developments and Applications of Ionic Liquids in Gas Separation Membranes

“…Kreiter et al [81] reported that the rates of diffusion, uptake, and release might have affected the performance of SILMs because the dissolution/desorption processes play a decisive role in SILMs compared to pure ILs. Barghi [83] stated that a poly(vinylidene difluoride) (PVDF) support showed lower permeabilities of 2.7 and 0.4 Barrer for CO 2 and N 2 , respectively.…”

“…Kreiter et al reported that the rates of diffusion, uptake, and release might have affected the performance of SILMs because the dissolution/desorption processes play a decisive role in SILMs compared to pure ILs. Barghi et al fabricated SILMs by immobilizing [bmim][PF6] IL on an inorganic membrane.…”