Pervaporation dehydration of binary and ternary mixtures of acetone, isopropanol and water using polyvinyl alcohol/zeolite membranes

Malekpour, Akbar; Mostajeran, Behnaz; Koohmareh, Gholam Ali

doi:10.1016/j.cep.2017.04.019

Cited by 35 publications

(26 citation statements)

References 37 publications

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“…As might be expected, MMMs prepared from the two benchmark hydrophilic materials, PVA and NaA zeolite particles, have been studied for solvent dehydration by PV and VP. 270,[273][274][275][276][277] As anticipated, the performance of a PVA/NaA zeolite MMM falls between that of 100% PVA and 100% NaA membranes. More recently, the emerging molecular sieving materials of CMS, MOF, and graphene have been used as the dispersed phase in water permselective MMMs.…”

Section: Mixed Matrix Materialssupporting

confidence: 53%

“…Because both material categories are large, the number of applicable MMM systems is even larger. As might be expected, MMMs prepared from the two benchmark hydrophilic materials, PVA and NaA zeolite particles, have been studied for solvent dehydration by PV and VP . As anticipated, the performance of a PVA/NaA zeolite MMM falls between that of 100% PVA and 100% NaA membranes.…”

Section: Mixed Matrix Materialsmentioning

confidence: 72%

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Review: membrane materials for the removal of water from industrial solvents by pervaporation and vapor permeation

Vane

2018

J of Chemical Tech & Biotech

113

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Organic solvents are widely used in a variety of industrial sectors. Reclaiming and reusing the solvents may be the most economically and environmentally beneficial option for managing spent solvents. Purifying the solvents to meet reuse specifications can be challenging. For hydrophilic solvents, water must be removed prior to reuse, yet many hydrophilic solvents form hard‐to‐separate azeotropic mixtures with water. Such mixtures make separation processes energy‐intensive and cause economic challenges. The membrane processes pervaporation (PV) and vapor permeation (VP) can be less energy‐intensive than distillation‐based processes and have proven to be very effective in removing water from azeotropic mixtures. In PV/VP, separation is based on the solution–diffusion interaction between the dense permselective layer of the membrane and the solvent/water mixture. This review provides a state‐of‐the‐science analysis of materials used as the selective layer(s) of PV/VP membranes in removing water from organic solvents. A variety of membrane materials, such as polymeric, inorganic, mixed matrix, and hybrid, have been reported in the literature. A small subset of these is commercially available and highlighted here: poly (vinyl alcohol), polyimides, amorphous perfluoro polymers, NaA zeolites, chabazite zeolites, T‐type zeolites, and hybrid silicas. The typical performance characteristics and operating limits of these membranes are discussed. Solvents targeted by the United States Environmental Protection Agency for reclamation are emphasized and ten common solvents are chosen for analysis: acetonitrile, 1‐butanol, N,N‐dimethyl formamide, ethanol, methanol, methyl isobutyl ketone, methyl tert‐butyl ether, tetrahydrofuran, acetone, and 2‐propanol. Published 2018. This article is a U.S. Government work and is in the public domain in the USA.

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Section: Mixed Matrix Materialssupporting

confidence: 53%

Section: Mixed Matrix Materialsmentioning

confidence: 72%

Review: membrane materials for the removal of water from industrial solvents by pervaporation and vapor permeation

Vane

2018

J of Chemical Tech & Biotech

113

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“…As a low‐cost and environmentally friendly technique, PV neither requires the addition of hazardous chemicals nor causes heat loss . Consequently, numerous studies have been conducted recently on PV separation of mixtures .…”

Section: Introductionmentioning

confidence: 99%

Removal of 1,2,4‐Trimethylbenzene from Water by Pervaporation Using Styrene–Butadiene–Styrene (SBS) Membrane Incorporated with Carbon Black Nanoparticles

Mousavinezhad

Mousavi

Saljoughi

2019

Polymer Engineering & Sci

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Styrene-butadiene-styrene (SBS) membranes incorporated with carbon black (CB) were prepared and investigated for pervaporation (PV) removal of 1,2,4-trimethylbenzene (TMB) from its aqueous solution. The influence of CB concentration on membrane properties was assessed by applying field emission scanning electron microscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction, Fourier transform infrared spectroscopy, and tensile test. Characterization of the prepared membranes implied increased water contact angles at higher CB concentrations. Moreover, membrane swelling was constant zero for all the membranes. Performance of the prepared membranes in PV separation of a volatile organic compound (1,2,4-TMB) from water was studied. The SBS/CB nanocomposite membranes revealed higher separation factor and PV separation index (PSI) compared to pure SBS membrane because of the CB hydrophobic nature. The separation factor and PSI of the nanocomposite membrane loaded with 1 wt. % CB were 3.6 and 1.8 times more than those of the neat SBS membrane, respectively. The membrane obtained at this appropriate CB concentration provided the total flux of 735 g/m 2 h, separation factor of 950, and PSI of 700,000 g/m 2 h. POLYM. ENG. SCI., 60:257-266, 2020.POLYMER ENGINEERING AND SCIENCE-2020 FIG. 3. Cross sectional FESEM images of the SBS/CB membranes with respect to CB concentration: (a) 0 wt. %, (b) 0.5 wt. %, (c) 1 wt. %, (d) 1.5 wt. %, and (e) 2 wt. %. FIG. 4. DSC thermograms of the pure SBS membrane and the SBS/CB membranes prepared with different CB concentrations. [Color figure can be viewed at wileyonlinelibrary.com] DOI 10.1002/pen POLYMER ENGINEERING AND SCIENCE-2020 261 FIG. 10. Membrane PV performance with respect to CB concentration (a) total flux, (b) water and TMB flux, (c) separation factor (α), and (d) PSI. [Color figure can be viewed at wileyonlinelibrary.com]

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“…These reasons account for why PVA has already been used to prepare several series of commercial membranes [3]. Improving the properties of PVA membranes nevertheless remains a challenging task [4][5][6][7]. In this work, two distinct strategies to this end were investigated, i.e., bulk and surface modifications.…”

Section: Introductionmentioning

confidence: 99%

Investigation of new modification strategies for PVA membranes to improve their dehydration properties by pervaporation

Dmitrenko

Penkova

Kuzminova

et al. 2018

Applied Surface Science

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Novel supported membranes based on polyvinyl alcohol (PVA) were developed using two strategies: first, by the modification of the PVA network, via so-called bulk modification, with the formation of the selective layer accomplished through the introduction of fullerenol and/or poly(allylamine hydrochloride), and second, by the functionalization of the surface with successive depositions of multilayered films of polyelectrolytes, such as poly(allylamine hydrochloride) and poly(sodium 4-styrenesulfonate) on the PVA surface. The membrane surface modifications were characterized by scanning electron microscopy and contact angle measurements. The modified PVA membranes were examined for their dehydration transport properties by the pervaporation of isopropyl alcohol-water (80/20% w/w), which was chosen as a model mixture. Compared with the pristine PVA membrane, the main improvement was a marked increase in permeance. It was found that the surface modifications mainly gave rise to a higher global flux but with a strong reduction in selectivity. Only the combination of both bulk and surface modifications with PEL could significantly increase the flux with a high water content in the permeate (over 98%). Lastly, it should be noted that this study developed a green procedure to prepare innovative membrane layers for dehydration, making use of only water as a working medium.

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Pervaporation dehydration of binary and ternary mixtures of acetone, isopropanol and water using polyvinyl alcohol/zeolite membranes

Cited by 35 publications

References 37 publications

Review: membrane materials for the removal of water from industrial solvents by pervaporation and vapor permeation

Review: membrane materials for the removal of water from industrial solvents by pervaporation and vapor permeation

Removal of 1,2,4‐Trimethylbenzene from Water by Pervaporation Using Styrene–Butadiene–Styrene (SBS) Membrane Incorporated with Carbon Black Nanoparticles

Investigation of new modification strategies for PVA membranes to improve their dehydration properties by pervaporation

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