Novel nanocomposite membranes prepared with PVC/ABS and silica nanoparticles for C2H6/CH4 separation

Salimi, Mahmoud; Pirouzfar, Vahid; Kianfar, Ehsan

doi:10.1134/s0965545x17040071

Cited by 75 publications

(19 citation statements)

References 34 publications

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“…Nevertheless, agglomerations of nanoparticles at high loadings may reduce the void fraction of the membrane. In the literature, different nanoparticles such as carbon nanotubes, zeolites, silica, alumina, Magnesium Oxide, and TiO 2 and SiO 2 are investigated that increase the permeability of the membranes. According to the size of the channels or the interaction between nanoparticles and feed, channeling of the membrane normally leads to decreased selectivity .…”

Section: Resultsmentioning

confidence: 99%

Pervaporation of toluene and iso‐octane through poly(vinyl alcohol)/graphene oxide nanoplate mixed matrix membranes: Comparison of crosslinked and noncrosslinked membranes

Khazaei

Mohebbi

Behbahani

et al. 2017

J of Applied Polymer Sci

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Removal of aromatic compounds from fuel is an essential requirement in new environmental policies. In the present study, poly(vinyl alcohol)/graphene oxide (GO) mixed matrix membranes were prepared and applied to the separation of toluene from iso‐octane by pervaporation, considering the similarity and interaction between graphene and aromatics. The effects of crosslinking and GO content on separation efficiency have been investigated in detail. Owing to the high affinity of GO with toluene through s and π bonds, the selectivity of the membranes was increased by incorporating a low amount of GO. The results also indicated that noncrosslinked membranes have higher selectivity and permeation flux due to higher crystallinity and also have lower mechanical properties. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 45853.

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Section: Resultsmentioning

confidence: 99%

Pervaporation of toluene and iso‐octane through poly(vinyl alcohol)/graphene oxide nanoplate mixed matrix membranes: Comparison of crosslinked and noncrosslinked membranes

Khazaei

Mohebbi

Behbahani

et al. 2017

J of Applied Polymer Sci

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“…In the last years, the polymeric membrane has been widely used for gas separation and purification 1–6 . The glassy polymeric membrane is usually implemented in the industrial membrane process, due to the suitable mechanical and thermal resistance along with high‐gas selectivity 7 .…”

Section: Introductionmentioning

confidence: 99%

A model to predict the solubility and permeability of gaseous penetrant in the glassy polymeric membrane at high pressure

Shoghl

Pazuki

Raisi

2021

J of Applied Polymer Sci

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In this work, the transport properties of gaseous penetrant through several dense glassy polymeric membranes are studied. The nonequilibrium lattice fluid (NELF) in conjunction with the modified Fick's law and dual mode sorption model was used to simulate the gas transport in glassy polymeric membranes. The approach is based on the sorption, diffusion, in which solubility is calculated based on the NELF model, and diffusion coefficient is obtained from the product thermodynamic coefficient and molecular mobility. The governing equation is solved by the finite element method using COMSOL multi‐physics software. The developed model for gas permeability of glassy polymeric membrane can be applied in a wide range of pressure and temperature. The comparison of the calculated permeability and solubility of gasses with the experimental data represented the ability of the developed model. Increasing feed gas temperature increases the gas permeability, while this variation leads to lower gas solubility in the glassy polymeric membranes. The effect of feed temperature and pressure on permeability and solubility is investigated, and the experimental data from literature are described by the developed model. A good prediction of the experimental data can be observed over the considered condition.

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“…For this reason, finding a simpler separation method at a lower cost can be considered. In choosing an appropriate separation method, the efficiency of those methods, access to equipment, separation costs, cost of construction and energy costs should be fully evaluated, taking into account environmental issues and policy issues [29] . Also, the separation targets must be specified in the process.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Study PVDF and PSF Hollow Fiber Membranes for Chemical Absorption Carbon Dioxide

Kianfar

2020

Fine Chemical Engineering

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Poly (vinylidene fluoride) (PVDF) and poly-sulfone (PSF) polymer solutions were made at a concentration of 18% by weight of the polymer as a non-soluble additive of polymer solution in 1-methyl-2-pyrrolidone (NMP) solvent. PVDF and PSF hollow fiber membranes were fabricated via the wet phase-inversion process. Fabricated membranes were characterized in terms of gas permeability, wetting resistance, water contact angle and overall porosity. In order to study the structure of the membranes made, the scanning electron microscopy images of the model (TM3000, HITACHI, Japan) were used. The morphology study indicates that the PSF membrane shows an open cross-section structure with smaller pore sizes. However, the PVDF membrane illustrates a thick sponge-like structure. The fabricated PVDF membrane shows higher wetting resistance, surface porosity, water contact angle, and N2 permeability. The performance of the produced membranes was examined for the Absorption of carbon dioxide in a gas-liquid contactor membrane through the solution of mono-ethanolamine (MEA). The results show that CO2 absorption flux of the PVDF hollow fiber membrane is higher than PSF hollow fiber membrane. The maximum CO2 absorption flux of 8.10 × 10-3 (mole/m2 s) at the liquid phase flow rate of 300 ml/min for PVDF hollow fiber membrane was achieved and also the maximum CO2 absorption flux of 6.50 × 10-3 (mole/m2 s) at the liquid phase flow rate of 300 ml/min for PSF hollow fiber membrane was obtained. It can be concluded that a porous hydrophobic hollow fiber membrane with high surface porosity and high gas permeability can be a productive alternative for CO2 absorption through gas-liquid membrane contactors.

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Novel nanocomposite membranes prepared with PVC/ABS and silica nanoparticles for C2H6/CH4 separation

Cited by 75 publications

References 34 publications

Pervaporation of toluene and iso‐octane through poly(vinyl alcohol)/graphene oxide nanoplate mixed matrix membranes: Comparison of crosslinked and noncrosslinked membranes

Pervaporation of toluene and iso‐octane through poly(vinyl alcohol)/graphene oxide nanoplate mixed matrix membranes: Comparison of crosslinked and noncrosslinked membranes

A model to predict the solubility and permeability of gaseous penetrant in the glassy polymeric membrane at high pressure

An Experimental Study PVDF and PSF Hollow Fiber Membranes for Chemical Absorption Carbon Dioxide

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