Separation of NF3 and CF4 using amorphous glassy perfluoropolymer Teflon AF and Hyflon AD60 membranes

Branken, D.J.; Krieg, H.M.; Roux, Jacques; Lachmann, G.

doi:10.1016/j.memsci.2014.03.033

Cited by 23 publications

(5 citation statements)

References 39 publications

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“…7). Branken et al [58] attempted three different perfluorinated glassy polymers including Teflon AF2400, Teflon AF1600 and Hyflon AD60 for NF 3 /CF 4 separations. They observed that the Hyflon AD60, which had the lowest fractional free volume, exhibited the highest NF 3 /CF 4 permselectivity of 12.2 with the lowest NF 3 permeability of 1.83 Barrer.…”

Section: Samplementioning

confidence: 99%

Free-standing, polysilsesquioxane-based inorganic/organic hybrid membranes for gas separations

Kang

Lee

Park

et al. 2015

Journal of Membrane Science

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Section: Samplementioning

confidence: 99%

Free-standing, polysilsesquioxane-based inorganic/organic hybrid membranes for gas separations

Kang

Lee

Park

et al. 2015

Journal of Membrane Science

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“…The simulation results for the permeation of He and CH 4 using the Hyflon AD60X membrane were compared with the experimental data in order to validate the mass transfer 2D model proposed. As the experimental permeability data of He 66 and CH 4 62 pure gases were available, it was necessary to determine the membrane mass flux of He and CH 4 pure gases from software, and then calculate permeability data according to the permeability definition. As shown in Fig.…”

Section: Methods Validationmentioning

confidence: 99%

CFD Simulation of He/CH4 Separation by Hyflon AD60X Membrane

Amini

Ghaednian-Jahromi

Karimi-Sabet

et al. 2022

Chemical and Biochemical Engineering Quarterly

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In this research, the membrane separation process was used to separate helium from methane gas. In order to do this, computational fluid dynamics (CFD) was used, and the effect of process parameters on the performance of the membrane separation process was studied by this method. To simulate the hydrodynamics of flow in the channel, the Navier-Stokes equation was used, and the Maxwell-Stefan equation was applied to simulate the mass transfer phenomenon. In addition, Fick's law was utilized to simulate mass transfer in the membrane domain. The impacts of significant parameters such as feed pressure, feed flow rate, and feed concentration on parameters such as He/CH 4 separation factor, methane and helium membrane flux and helium mole fraction in permeate stream were studied. The results of the simulation indicated that the feed pressure of 10 bar, feed flow rate of 120 cm 3 min -1 , and feed mole fraction of 0.0254 had the best membrane performance in He/CH 4 separation.

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“…In Fig. 6, the gas permeabilities of PDMS [108][109][110][111][112][113][114][115][116][117][118] and Teflon AF2400 109,114,[118][119][120][121][122][123][124][125] were investigated from literature studies. Both materials are commercially available and well known for their high gas permeability.…”

Section: Basic Transport Mechanisms Through Gpmsmentioning

confidence: 99%

Gas transport mechanisms through gas-permeable membranes in microfluidics: A perspective

Seo,

Kim

2023

Biomicrofluidics

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Gas-permeable membranes (GPMs) and membrane-like micro-/nanostructures offer precise control over the transport of liquids, gases, and small molecules on microchips, which has led to the possibility of diverse applications, such as gas sensors, solution concentrators, and mixture separators. With the escalating demand for GPMs in microfluidics, this Perspective article aims to comprehensively categorize the transport mechanisms of gases through GPMs based on the penetrant type and the transport direction. We also provide a comprehensive review of recent advancements in GPM-integrated microfluidic devices, provide an overview of the fundamental mechanisms underlying gas transport through GPMs, and present future perspectives on the integration of GPMs in microfluidics. Furthermore, we address the current challenges associated with GPMs and GPM-integrated microfluidic devices, taking into consideration the intrinsic material properties and capabilities of GPMs. By tackling these challenges head-on, we believe that our perspectives can catalyze innovative advancements and help meet the evolving demands of microfluidic applications.

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Separation of NF3 and CF4 using amorphous glassy perfluoropolymer Teflon AF and Hyflon AD60 membranes

Cited by 23 publications

References 39 publications

Free-standing, polysilsesquioxane-based inorganic/organic hybrid membranes for gas separations

Free-standing, polysilsesquioxane-based inorganic/organic hybrid membranes for gas separations

CFD Simulation of He/CH4 Separation by Hyflon AD60X Membrane

Gas transport mechanisms through gas-permeable membranes in microfluidics: A perspective

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