Investigation of pervaporation hybrid polyvinylchloride membranes for the separation of toluene–n-heptane mixtures — case of clays as filler

Aouinti, L.; Roizard, Denis; Hu, Guohua; Thomas, Fabien; Belbachir, Mohammed

doi:10.1016/j.desal.2007.12.049

Cited by 30 publications

(12 citation statements)

References 13 publications

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“…Incorporation of nanoclays in the hybrid membrane provides a new approach in the development of MMMs for gas separation. Although layered silicate has been use as fillers for nanocomposites for various application such as food packaging, ultrafiltration [19], pervaporation [20], and in fuel cell [21], little work has been done to exploit its potential in gas separation. MMT, hectorite, and saponite are the most commonly used layered silicates and besides of the low cost and availability, few…”

Section: Recent Progress Of Clay Based Mixed Matrix Membrane For Gas mentioning

confidence: 99%

Polymer Clay Nanocomposites for Gas Separation: A Review

Ismail¹,

Ismail²,

Mustafa³

et al. 2019

Env.cont.Reviews

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Application of polymer clay nanocomposites for carbon dioxide (CO2) removal in gas separation by using mixed matrix membranes is promising due to the advancement of nanotechnology and polymer processing. In this regard, as clay is abundantly available, cheaper and has attractive physical and chemical properties, the incorporation of these silicate layers within the polymer matrix as filler is favourable. In principle, the exfoliated clay single layers create higher tortuosity effects and may improve the separation properties of the membrane. This review presents a synopsis of the polymer clay nanocomposites development and applications as well as their potential for the removal of CO2 from gas mixtures. Details of the recent works in the development of mixed matrix membranes embedded with clay for gas separation were also discussed. In addition, the problems and mechanism to evaluate the exfoliation properties were emphasized identifying the gaps and motivates for future research works utilizing clay nanoparticles as membrane filler.

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Section: Recent Progress Of Clay Based Mixed Matrix Membrane For Gas mentioning

confidence: 99%

Polymer Clay Nanocomposites for Gas Separation: A Review

Ismail¹,

Ismail²,

Mustafa³

et al. 2019

Env.cont.Reviews

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“…Sorption measurements of the PVC [6] and hybrid films was performed by immersion in pure liquids (toluene, n-heptane) and 50% wt toluene-heptane mixture at room temperature (25 ± 1°C). The samples, weighing at least 5 × 10 -4 kg each, were submerged in the liquids until the sorption equilibrium was reached, approximately 24 h. Before each measurement, the samples were rapidly blotted, and the weight increase was recorded using a hermetically sealed flask.…”

Section: Sorption Measurementsmentioning

confidence: 99%

Preparation of PVC-NiFeCo3-Hybrid membranes for the Pervaporation Separation of Toluene-Heptane mixtures

Aouinti¹,

Boukraa²,

Chirane³

et al. 2019

Int J Petrochem Res

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Separation of organic-organic liquid mixtures using membranes has been investigated extensively over the past several decades due to its great significance in the chemical industry, Aromatic-alkane, alkane alkene and aromatics removal from gasoline systems among the most studied. These compounds are often present at very low concentrations in the mixtures and their recovery with traditional techniques, such as distillation and partial condensation, are not very simple. Pervaporation (PV) has been considered as one of the most active and promising areas in membrane technologies. In PV, the membrane itself is the key Polyvinyl chloride (PVC)-based mixed matrix membranes were prepared with LDH layered double hydroxide (NiFeCO 3 ) particles, and were studied for the separation of toluene-heptane mixtures. It was found that the PVC transport properties could be significantly modified by the amount of NiFeCO 3 incorporated. NiFeCO 3 /PVC membranes were characterized by IR FT spectroscopy and ATG.

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“…Pervaporation is the most common approach used in the separation of aromatic/aliphatic compounds such as toluene and n-heptane based on their differences in solubility and diffusion coefficient of the vapor phase molecules across the membrane materials. The common pervaporation membrane materials used for the separation of n-heptane and toluene polymers are polyurethanes, polyetherimides, poly (vinyl 2 of 17 chloride) (PVC), polyacrylates and their copolymers [2,[7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. These membranes demonstrated relative high selectivity.…”

Section: Introductionmentioning

confidence: 99%

“…A previous study [13] used inorganic nanoclays as fillers embedded in the PVC membranes for the separation of toluene and n-heptane. With 10 wt% loading of the nanoclays, the mixed matrix membranes exhibited approximately 300% increase in flux with a separation factor of 6 at 50 • C compared to PVC membranes without the nanoclay fillers operated at the same condition.…”

Section: Introductionmentioning

confidence: 99%

Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation

et al. 2020

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Copper-based metal–organic frameworks (MOFs) with different oxidation states and near-uniform particle sizes have been successfully synthesized. Mixed-matrix polyimide membranes incorporating 0.1–7 wt% of Cu(II) benzene-1,2,5-tricarboxylic acid (Cu(II)BTC), Cu(I/II)BTC and Cu(I) 1,2-ethanedisulfonic acid (EDS) (Cu(I)EDS) MOFs were fabricated via non-solvent-induced phase inversion process. These membranes are found to be solvent resistant and mechanically stable. Liquid phase nanofiltration experiments were performed to separate toluene from n-heptane at room temperature. These membranes demonstrate preferential adsorption and permeation of the aromatic toluene over aliphatic n-heptane. The amount of MOF particles incorporated, the oxidation state of the Cu ion and membrane, and barrier layer thickness have a significant impact on the separation factor. Toluene/heptane separation factor at 1.47, 1.67 and 1.79 can be obtained for membranes incorporating 7 wt% Cu(II)BTC, Cu(I/II)BTC and Cu(I)EDS respectively at room temperature.

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Investigation of pervaporation hybrid polyvinylchloride membranes for the separation of toluene–n-heptane mixtures — case of clays as filler

Cited by 30 publications

References 13 publications

Polymer Clay Nanocomposites for Gas Separation: A Review

Polymer Clay Nanocomposites for Gas Separation: A Review

Preparation of PVC-NiFeCo3-Hybrid membranes for the Pervaporation Separation of Toluene-Heptane mixtures

Cu(I/II) Metal–Organic Frameworks Incorporated Nanofiltration Membranes for Organic Solvent Separation

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