Pervaporation separation of MeOH/MTBE mixtures with modified PEEK membrane: Effect of operating conditions

Zereshki, S.; Figoli, Alberto; Madaeni, S.S.; Simone, Silvia De; Esmailinezhad, M.; Drioli, Enrico

doi:10.1016/j.memsci.2010.11.068

Cited by 62 publications

(23 citation statements)

References 58 publications

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“…S11 and S12 [43][44][45][46][47][48][49][50][51][52][53][54][55][56][57][58][59][60]. Importantly, H 2 solubility, viscosity and density also did not show any significant correlation with the rates observed, Fig.…”

Section: Kinetic Datamentioning

confidence: 99%

Effect of solvent on the hydrogenation of 4-phenyl-2-butanone over Pt based catalysts

McManus

Daly

Thompson

et al. 2015

Journal of Catalysis

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a b s t r a c tThe hydrogenation of 4-phenyl-2-butanone over Pt/TiO 2 and Pt/SiO 2 catalysts has been performed in a range of solvents and it has been observed that the solvent impacted on the selectivity of ketone and aromatic ring hydrogenation as well as the overall TOF of the titania catalyst with no solvent effect on selectivity observed using the silica supported catalyst where ring hydrogenation was favored. For the titania catalyst, alkanes were found to favor ring hydrogenation whereas aromatics and alcohols led to carbonyl hydrogenation. A two-site catalyst model is proposed whereby the aromatic ring hydrogenation occurs over the metal sites while carbonyl hydrogenation is thought to occur predominantly at interfacial sites, with oxygen vacancies in the titania support activating the carbonyl. The effect of the solvent on the hydrogenation reaction over the titania catalyst was related to competition for the active sites between solvent and 4-phenyl-2-butanone.

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Section: Kinetic Datamentioning

confidence: 99%

Effect of solvent on the hydrogenation of 4-phenyl-2-butanone over Pt based catalysts

McManus

Daly

Thompson

et al. 2015

Journal of Catalysis

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“…This can be explained in terms of Hansen solubility parameters . The Hansen solubility parameter (δ t ) illustrates the reactive power between the penetrating liquid and polymer functional groups . In general, the components with closer solubility parameters tend to have more interaction with each other.…”

Section: Resultsmentioning

confidence: 99%

“…In contrast, a decreasing trend in mechanical resistance is observed for these membranes after immersion in MTBE. This behavior may be caused by reduced mobility and flexibility of polymer chains exposed to the solvent …”

Section: Resultsmentioning

confidence: 99%

Thin film composite membranes with desirable support layer for MeOH/MTBE pervaporation

Alibakhshian

Chenar

Asghari

2019

J of Applied Polymer Sci

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A comprehensive study was performed on a new application of thin film composite membranes and selecting a stable sublayer for them as pervaporation membranes in organic solvent separation. For this purpose, four different polymeric sublayers of polyethersulfone (PES), cellulose acetate, polyacrylonitrile, and polyetherimide were prepared, and the interaction of methanol (MeOH) and methyl tert butyl ether (MTBE) with them was investigated. The contact angle results, scanning electron microscopy images, and swelling and mechanical strength measurements obviously displayed the effect of immersion in organic solvents on the sublayers. Finally, a polyamide active layer was subsequently deposited on the PES membrane surface as the stable sublayer via interfacial polymerization based on a multistep statistical optimization strategy involving fractional factorial design and a response surface method. The prepared TFC membranes were tested in the pervaporation of a MeOH/MTBE mixture and exhibited excellent performance compared with the current membranes in this context. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47519.

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“…Because of low water content in the vapor phase, higher concentration of EG by distillation becomes economically infeasible [8]. Pervaporation (PV) is expected to be a promising alternative process for separation of such mixtures because this process is expected to be an energy‐efficient process [9–14]. However, high water permeation through the polymeric membranes in PV process is associated with reduction of separation factor, which is due to the swelling of the membranes.…”

Section: Introductionmentioning

confidence: 99%

Pervaporation study of ethylene glycol dehydration through synthesized (PVA–4A)/polypropylene mixed matrix composite membranes

Shahverdi

Baheri

Rezakazemi

et al. 2012

Polymer Engineering & Sci

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Poly(vinyl alcohol) (PVA)/zeolite 4A mixed matrix composite membranes supported on polypropylene microfiltration membranes were prepared by solution casting method and crosslinked with glutaraldehyde to investigate their pervaporation (PV) separation properties of water–ethylene glycol mixtures. Scanning electron microscopy images showed homogeneous distribution of zeolite nanoparticles within the polymer matrix without any visible macroscopic voids at the zeolite–polymer interface. The PV experiments were accomplished to investigate the effects of water concentration (10–40 wt%) and temperature (60–80°C) on separation performance of the membranes. It was found out that 5 wt% loading of the 4A nanoparticles into the PVA matrix is optimal to obtain the best separation performance. The experimental results revealed that loading of zeolite 4A enhanced the membrane performance [both permeation flux (5%) and separation factor (32%) at 5 wt% zeolite loading]. POLYM. ENG. SCI., 2013. © 2012 Society of Plastics Engineers

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Pervaporation separation of MeOH/MTBE mixtures with modified PEEK membrane: Effect of operating conditions

Cited by 62 publications

References 58 publications

Effect of solvent on the hydrogenation of 4-phenyl-2-butanone over Pt based catalysts

Effect of solvent on the hydrogenation of 4-phenyl-2-butanone over Pt based catalysts

Thin film composite membranes with desirable support layer for MeOH/MTBE pervaporation

Pervaporation study of ethylene glycol dehydration through synthesized (PVA–4A)/polypropylene mixed matrix composite membranes

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