A PDMS membrane with high pervaporation performance for the separation of furfural and its potential in industrial application

Qin, Fan; Li, Shufeng; Qin, Peiyong; Karim, M. Nazmul; Tan, Tianwei

doi:10.1039/c3gc41867g

Cited by 81 publications

(33 citation statements)

References 79 publications

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“…Very strong impact on its price has process of furfural separation from the formed aqueous solutions. Therefore, for preparation of some chemicals and fuels from furfural it is highly beneficial to use as a source of furfural diluted furfuralwater streams (e.g., azeotropes) obtained in traditional distillation [15], stream stripping [16] or developing membrane [17] and reactive distillation [18] processes. This will significantly reduce the energy needed for production of furfural feedstock.…”

Section: Introductionmentioning

confidence: 99%

Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Fulajtárová

Soták

Hronec

et al. 2015

Applied Catalysis A: General

235

156

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Section: Introductionmentioning

confidence: 99%

Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Fulajtárová

Soták

Hronec

et al. 2015

Applied Catalysis A: General

235

156

View full text Add to dashboard Cite

“…While the diffusion resistance decreases for pentyl acetate, the permeation increases. It is expected that the pentyl acetate flux increases because of the increment of the driving force . As stated previously, the solution and diffusion mechanism is carried out in a pervaporation process.…”

Section: Resultsmentioning

confidence: 99%

“…The high‐process temperature results in an increase of the free volume of the membrane. As the diffusion channel between the polymer molecules in the membrane increases, diffusion resistance of both octyl acetate and water decreases . Therefore, the increment of free volume by temperature results in high octyl acetate flux.…”

Section: Resultsmentioning

confidence: 99%

“…It is expected that the pentyl acetate flux increases because of the increment of the driving force. 27 As stated previously, the solution and diffusion mechanism is carried out in a pervaporation process. In this process, the pentyl acetate separation factor of the membrane can be explained with preferential pentyl acetate sorption because the solubility parameter of the (4)…”

Section: Effect Of Driving Forcementioning

confidence: 99%

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Concentration of aroma compounds by pervaporation process using polyvinyl chloride membrane

Ünlü

2019

Flavour & Fragrance J

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The organoleptic properties of beverage products have an important role in consumption and commercial success. Nowadays aroma recovery with high efficiency is an important process. Hydrophobic pervaporation is an alternative process for the recovery of aroma compounds in the food industry. The purpose of this study was to determine the effects of operation temperature, feed concentration, and driving force on the recovery of different aroma compounds such as propyl acetate, pentyl acetate, and octyl acetate by pervaporation. Pervaporation was operated using a Polyvinyl Chloride hydrophobic membrane. As the process temperature and the feed concentration increased, the flux increased, but separation factor values of binary aqueous solutions of the aroma components propyl acetate, pentyl acetate, and octyl acetate decreased. Polyvinyl Chloride possessed a higher separation factor value for propyl acetate than octyl acetate and pentyl acetate. This situation was also confirmed with swelling tests and solubility parameters. Low‐swelling degree results in a high separation factor. The highest separation success was observed for propyl acetate. The flux and separation factor of propyl acetate were obtained as 1.57 kg m−2 h−1 and 158, respectively. It has been found that the pervaporation is an efficient process for aroma recovery from water and that the polyvinyl chloride membrane exhibits good separation performance from the removal of propyl acetate, pentyl acetate, and octyl acetate from the water.

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“…The findings in the above two sections show that the integrity of PSI layer cannot be achieved easily when attempting to further decreasing its thickness. Therefore, effort is direct towards the modification of coagulant surface tension by adding surfactant . Based on the data of surface tension it is also found that a concentration of 2 g/L Sodium Dodecyl Sulfate water solution exhibit a surface tension of 47.69 mN/m, much lower than 72.84 mN/m of pure water.…”

Section: Resultsmentioning

confidence: 99%

Fabrication and structural tuning of novel composite hollow fiber membranes for pervaporation

Zhu

Jiang

2016

J of Applied Polymer Sci

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A series of polysiloxaneimide (PSI)/polyetherimide (PEI) composite hollow fibers were fabricated by coextrusion and phase inversion. The hydrophobic PSI outer layer was set as the selective layer which was supported by the PEI inner layer. The PSI was synthesized by polycondensation of 3,3 0 ,4,4 0 -Biphenyltetracarboxylic Dianhydride (BPDA) with amino siloxane X-22-161A and a chain extender, 1,3-Bis (3-aminopropyl) 21,1,3,3-tertramethyldisiloxane (BATS). It was found that the macroscopic uniformity of PSI layer was dependent on the dope formulation, coagulant composition and dope flow rate: (1) the higher similarity degree of the solvent(s) for different layers in terms of solubility parameters, (2) the utilization of surfactant as a component in the water coagulant, and (3) higher flow rates of the outer layer dopes, led to the formation of more uniform and smoother PSI outer layer. The maximum outer layer thickness was around 2 lm. The bulk of the PEI layers were porous with finger like macrovoids. The outer surface of the inner PEI layer for some batches of the hollow fibers was confirmed to be porous. The original dual-layer hollow fibers showed poor pervaporation performance. Post treatment was applied to cure the hollow fiber, delivering composite membranes with performance dominated by the coating material of PDMS.

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A PDMS membrane with high pervaporation performance for the separation of furfural and its potential in industrial application

Cited by 81 publications

References 79 publications

Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Aqueous phase hydrogenation of furfural to furfuryl alcohol over Pd–Cu catalysts

Concentration of aroma compounds by pervaporation process using polyvinyl chloride membrane

Fabrication and structural tuning of novel composite hollow fiber membranes for pervaporation

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