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Relevant bibliographies by topics / Ethanol/water pervaporation

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Academic literature on the topic 'Ethanol/water pervaporation'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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Journal articles on the topic "Ethanol/water pervaporation"

1

Hu, Michael, Chaiwat Engtrakul, Brian Bischoff, Mi Lu, and Mussie Alemseghed. "Surface-Engineered Inorganic Nanoporous Membranes for Vapor and Pervaporative Separations of Water–Ethanol Mixtures." Membranes 8, no. 4 (October 12, 2018): 95. http://dx.doi.org/10.3390/membranes8040095.

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Surface wettability-tailored porous ceramic/metallic membranes (in the tubular and planar disc form) were prepared and studied for both vapor-phase separation and liquid pervaporative separations of water-ethanol mixtures. Superhydrophobic nanoceramic membranes demonstrated more selective permeation of ethanol (relative to water) by cross-flow pervaporation of liquid ethanol–water mixture (10 wt % ethanol feed at 80 °C). In addition, both superhydrophilic and superhydrophobic membranes were tested for the vapor-phase separations of water–ethanol mixtures. Porous inorganic membranes having relatively large nanopores (up to 8-nm) demonstrated good separation selectivity with higher permeation flux through a non-molecular-sieving mechanism. Due to surface-enhanced separation selectivity, larger nanopore-sized membranes (~5–100 nm) can be employed for both pervaporation and vapor phase separations to obtain higher selectivity (e.g., permselectivity for ethanol of 13.9 during pervaporation and a vapor phase separation factor of 1.6), with higher flux due to larger nanopores than the traditional size-exclusion membranes (e.g., inorganic zeolite-based membranes having sub-nanometer pores). The prepared superhydrophobic porous inorganic membranes in this work showed good thermal stability (i.e., the large contact angle remains the same after 300 °C for 4 h) and chemical stability to ethanol, while the silica-textured superhydrophilic surfaced membranes can tolerate even higher temperatures. These surface-engineered metallic/ceramic nanoporous membranes should have better high-temperature tolerance for hot vapor processing than those reported for polymeric membranes.

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Zhuang, Liwei, Qingyuan Cao, Fei Liang, Yichao Hu, Weite Su, Xin Wen, Xiao-Hua Ma, and Zhen-Liang Xu. "Exploring distillation-pervaporation hybrid process in a single column using hollow fiber pervaporation composite membranes as structured packing." Materials Express 10, no. 5 (May 1, 2020): 701–9. http://dx.doi.org/10.1166/mex.2020.1680.

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This study developed a novel strategy for azeotrope separation such as ethanol-water binary system. Distillation-pervaporation hybrid process was employed by using hollow fiber pervaporation composite membranes as structured packing in a single hybrid column rather than using pervaporation as an externally connected unit of the distillation column. The separating limitation of azeotrope challenged in conventional distillation could be readily overcome by continually removing water from the hybrid system via pervaporation. The competition between distillation and pervaporation has been found to be cause of unexpected concentration distribution in the hybrid column. The mass flux of mixture decreased with time whereas the selectivity of water to ethanol first increased then decreased with time. Analysis of this system illustrated that the increase in heating power and membrane area shortened time for obtaining certain content of ethanol in the mixture. However, faster decline in mass flux occurred due to an increase in the removal rate of water. With respect to its simplicity, efficiency and broad applicability, this hybrid process is expected to provide a benchmark for the enhancement of distillation-pervaporation process by hollow fiber membrane packing.

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Dobre, Tănase, Claudia Ana Maria Patrichi, Oana Cristina Pârvulescu, and Ali A. Abbas Aljanabi. "Pervaporation of Aqueous Ethanol Solutions through Rigid Composite Polyvinyl-Alcohol/Bacterial Cellulose Membranes." Processes 9, no. 3 (February 28, 2021): 437. http://dx.doi.org/10.3390/pr9030437.

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The paper focuses on synthesis, characterization and testing in ethanol-water separation by pervaporation of new membrane types based on polyvinyl alcohol (PVA) and bacterial cellulose (BC). A technology for obtaining these membranes deposited on a ceramic support is presented in the experimental section. Three PVA-BC composite membranes with different BC content were obtained and characterized by FTIR, SEM and optic microscopy. The effects of operating temperature (40–60 °C), permeate pressure (18.7–37.3 kPa) and feed ethanol concentration (24–72%wt) on total permeate flow rate (0.09–0.23 kg/m2/h) and water/ethanol selectivity (5–23) were studied based on an appropriate experimental plan for each PVA-BC membrane. Statistical models linking the process factors to pervaporation performances were obtained by processing the experimental data. Ethanol concentration of the processed mixture had the highest influence on permeate flow rate, an increase in ethanol concentration leading to a decrease in the permeate flow rate. All 3 process factors and their interactions had positive effects on membrane selectivity. Polynomial regression models were used to assess the effect of BC content in the dried membrane on pervaporation performances. Values of process performances obtained in this study indicate that these membranes could be effective for ethanol-water separation by pervaporation.

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Lee, Young Moo, Sang Yong Nam, and Dong Jin Woo. "Pervaporation Performance of β-Chitosan Membrane for Water/Alcohol Mixtures." Journal of Polymer Engineering 18, no. 1-2 (March 1, 1998): 131–46. http://dx.doi.org/10.1515/polyeng-1998-1-211.

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Abstract Composite membranes made of β-chitosan extracted from squid were prepared and crosslinked with sulfuric acid with various crosslinking times. Dehydration performance of the water/ethanol and water/isopropanol mixtures by pervaporation experiments using β-chitosan composite membranes was investigated. Crosslinking and deacetylation degree of the membrane were confirmed by ATR-FT-IR and elemental analysis (EA), respectively. Pervaporation experiments were investigated under various feed concentrations and temperatures. β-Chitosan showed a higher degree of swelling in water than a-chitosan, resulting in a higher flux of β-Chitosan than that of α-chitosan. β-Chitosan composite membranes showed good dehydration performance in pervaporation of a water/alcohol mixture. For water/ethanol mixtures, separation factor (α) - 270; flux (J) - 700 g/m2hr, for water/isopropanol, α - 150; J -1800 g/m2hr, respectively.

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Selim, Asmaa, András József Tóth, Enikő Haáz, Dániel Fózer, and Péter Mizsey. "Pervaporation Performance of Ag-PVA Nanocomposite Membranes: Effect of Operating Temperature." Periodica Polytechnica Chemical Engineering 64, no. 1 (September 11, 2019): 85–92. http://dx.doi.org/10.3311/ppch.13809.

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The features of pervaporation are continuously improved with the production of more and more efficient membranes. In our present study, silver nanoparticles are in-situ generated in a poly (vinyl alcohol) using solution-casting in order to enhance its capability for pervaporation. The membrane is tested on the case study of ethanol dehydration by pervaporation. Effect of silver content on the pervaporation separation index and the enrichment factor of the membrane at 15 % mass water at 40 °C are reported. Pervaporation data for nanocomposite membranes show around 100 % increase in the water permeance values while the intrinsic selectivity decreases that is typical for pervaporation membranes. The water permeances of original crosslinked PVA membrane and the 2.5 % silver loaded PVA membrane are 26.65 and 70.45 (g/m2.kPa.h), respectively. The values of total flux are closely related to water flux, showing that membranes could be successfully assigned to separate water from ethanol even at the azeotropic point. The influence of temperature on the efficiency of the pervaporation process, permeation parameter and diffusion coefficient of the feed component is also discussed. The negative heat of sorption (∆Hs) values calculated on the basis of the estimated Arrhenius activation energy values indicates that the sorption process is controlled by Langmuir's mode. Our results show that the 0.5 mass% silver loaded poly (vinyl alcohol) membrane exhibits excellent PV performance.

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Trica, Bogdan, Oana Cristina Parvulescu, Tanase Dobre, Ali A. A. Al Janabi, Cristian Raducanu, and Claudia Patrichi. "Modelling of Ethanol Fermentation Coupled with Product Recovery by Pervaporation." Revista de Chimie 68, no. 11 (December 15, 2017): 2708–15. http://dx.doi.org/10.37358/rc.17.11.5960.

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Bioethanol is the most important biofuel produced by fermentation of sugars from various biomass types. The main disadvantages associated to this process consist in the negative effect of high ethanol concentration on the cell growth and in the separation cost of ethanol-water system resulted in the fermentation process. Sugar fermentation using Saccharomyces cerevisiae yeast coupled with bioethanol recovery by pervaporation has been modeled and simulated in this paper. In order to avoid the clogging of pervaporation membrane, the yeast cells were previously retained into an ultrafiltration unit. Three operating modes were analyzed and compared, i.e., classical batch fermentation (BF), batch fermentation coupled with external ultrafiltration and pervaporation (BFPV), and fed batch fermentation coupled with external ultrafiltration and pervaporation (FBFPV). Surface areas of ultrafiltration and pervaporation units were selected as process control variables.

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Koczka, Katalin, Peter Mizsey, and Zsolt Fonyo. "Rigorous modelling and optimization of hybrid separation processes based on pervaporation." Open Chemistry 5, no. 4 (December 1, 2007): 1124–47. http://dx.doi.org/10.2478/s11532-007-0050-8.

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AbstractHybrid separation processes are becoming more and more important in the practice if membrane technologies are also involved. In this work, a systematic investigation is completed for three sequence alternatives of distillation and pervaporation. These are the following: pervaporation followed with distillation (PV+D), distillation followed with pervaporation (D+PV), two distillation columns and a pervaporation unit between them (D+PV+D). The hybrid separation process alternatives are evaluated with rigorous modelling tools, but first, a rigorous simulation algorithm is determined for the pervaporation. The three hybrid separation processes are rigorously modelled with CHEMCAD, and optimized with the dynamic programming optimization method for the case of the separation of ethanol-water mixture. The objective function is the total annual cost (TAC). The energy consumption is also investigated. The selection of the ethanol-water mixture has two motivations: (i) it is quite often studied and well known, and (ii) to make biofuel (ethanol) production more economical, membrane technologies might also be applied. The results are compared with each other and with the classical separation completed with heteroazeotropic distillation. The optimized TAC shows that the distillation column followed with pervaporation is the most economical hybrid separation process alternative. Its TAC is about 66% of that of the classical separation.

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Liu, Jie, Jiding Li, Quan Chen, and Xiaoduan Li. "Performance of a pervaporation system for the separation of an ethanol-water mixture using fractional condensation." Water Science and Technology 77, no. 7 (February 15, 2018): 1861–69. http://dx.doi.org/10.2166/wst.2018.067.

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Abstract Polydimethylsiloxane (PDMS)/polyvinylidene fluoride (PVDF) composite membranes were fabricated and subsequently applied in ethanol recovery from an ethanol-water mixture by pervaporation (PV) using fractional condensation. The effects of feed temperature and feed flow velocity on the pervaporative properties of PDMS/PVDF composite membranes were investigated. Scanning electron microscopy (SEM) results showed that PDMS was coated uniformly on the surface of porous PVDF substrate, and the PDMS separation layer was dense with a thickness of 1.7 µm. Additionally, it was found that with increasing feed temperature, the total flux of the composite membrane increased, whereas the separation factor decreased. As the feed flow velocity increased, the total flux and separation factor increased. Besides, the permeate vapor was condensed by a two-stage fractional condenser maintained at different temperatures. The effects of the condensation conditions on fractions of ethanol-water vapor were studied to concentrate ethanol in product. The fractional condensers proved to be an effective way to enhance the separation efficiency. Under the optimum fractional condensation conditions, the second condenser showed a flux of 1,329 g/m2 h and the separation factor was increased to 17.2. Furthermore, the long-term operation stability was verified, indicating that the PV system incorporating fractional condensation was a promising approach to separate ethanol from the ethanol-water mixture.

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Bai, Lu, Ping Qu, Shuai Li, Yuan Gao, and Li Ping Zhang. "Poly(vinyl Alcohol)/Cellulose Nanocomposite Pervaporation Membranes for Ethanol Dehydration." Materials Science Forum 675-677 (February 2011): 383–86. http://dx.doi.org/10.4028/www.scientific.net/msf.675-677.383.

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In this study, pervaporation membranes were prepared from poly( vinyl alcohol) (PVA) with different amounts of cellulose nanocrystals as filler, and characterized by scanning electron microscopy (SEM). The characterization results demonstrated that cellulose nanocrystal particles dispersed homogeneously within the PVA matrix. Moreover, the pervaporation performance of these membranes was investigated using the separation of ethanol-water mixture as model system. Among all the prepared membranes, PVA/cellulose nanocomposite membrane containing 1 wt% cellulose nanocrystals exhibited the best pervaporation performance, whose averaged permeation flux reduced slightly but separation factor was increased from 83 to 163 for 80% aqueous solution of ethanol at 80 °C respectively.

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Huang, Zhen, Yu Hua Guo, Gui Mei Guo, and Li Jun Teng. "Pervaporation Dehydration of Aqueous Ethanol Solution with Zeolite-Filled Poly (vinyl Alcohol) Composite Membranes." Advanced Materials Research 239-242 (May 2011): 1331–34. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1331.

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Pervaporation performances of three –layer zeolite-filled poly (vinyl alcohol) composite membranes have been investigated for ethanol dehydration. Compared the neat polymer counterparts, high separation factor and high fluxes are both achieved by these membranes, indicating that ethanol/water separation is enhanced with the zeolites. Zeolites used include 3A, 4A, 5A, NaX, NaY, silicalite-1 and Beta. Through evaluating separation factor, ethanol flux and total pervaporation flux, separation performances of composite membranes are elucidated in detail in terms of the zeolite pore size, its hydrophilic/hydrophobic nature as well as its crystal framework.

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Dissertations / Theses on the topic "Ethanol/water pervaporation"

1

kahwaji, janho michel E. "FORMULATION AND USE OF A PERVAPORATION MATHEMATICAL MODEL." Cleveland State University / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=csu1432111781.

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(arican), Yuksel Berna. "Pervaporation Of Ethanol/water Mixtures By Zeolite A Membranes Synthesized In Batch And Flow Systems." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612891/index.pdf.

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Zeolite A membranes have great potential in pervaporation separation of ethanol/water mixtures with high flux and selectivity. Zeolite membranes usually synthesized from hydrogels in batch systems. In recent years, zeolite membranes are prepared in semicontinuous, continuous and recirculating flow systems to allow the synthesis of zeolite membranes with enlarged surface areas and to overcome the limitations of batch system at industrial level production. The purpose of this study is to develop a synthesis method for the preparation of good quality zeolite A membranes in a recirculated flow system from hydrogels and to test the separation performance of the synthesized membranes by pervaporation of ethanol/water mixture. In this context, three different experimental synthesis parameters were investigated with zeolite A membranes synthesized in batch system. These parameters were the composition of the starting synthesis hydrogel, silica source and the seeding technique. Syntheses were carried out using hydrogels at atmospheric pressure and at 95 °
C. The membranes were characterized by X-ray diffraction, scanning electron microscopy and pervaporation of 90 wt% ethanol-10 wt% water mixtures. v Pure zeolite A membranes were synthesized both in batch and flow systems. The membranes synthesized in batch system have fluxes around 0.2-0.3 kg/m2h and selectivities in the range of 10-100. Membranes with higher selectivities were obtained in batch system by using waterglass as silica source, seeding by dip-coating wiping method, and with a batch composition of 3.4Na2O:Al2O3:2SiO2:155H2O. The membranes prepared in flow system have higher pervaporation performances than the ones prepared in batch system in considering both flux and the selectivity. Fluxes were around 0.3-3.7 kg/m2h and selectivities were in the range of 102-104 for the membranes prepared in flow system which are comparable with the data reported in literature for batch and flow systems. A high quality zeolite A membrane was also synthesized from 3.4Na2O:Al2O3:2SiO2:200H2O hydrogel at 95 °
C for 17 hours in flow system. Pervaporation flux of this membrane was 1.2 kg/m2h with a selectivity >
25,000 at 50°
C. Although the synthesis method is resulted with high quality membrane, reproducibility of the synthesis method is poor and it should be improved.

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3

McFadden, Kathrine D. "Reverse-selective zeolite/polymer nanocomposite hollow fiber membranes for pervaporative biofuel/water separation." Thesis, Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/39538.

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Pervaporation with a "reverse-selective" (hydrophobic) membrane is a promising technology for the energy-efficient separation of alcohols from dilute alcohol-water streams, such as those formed in the production of biofuels. Pervaporation depends on the selectivity and throughput of the membrane, which in turn is highly dependent on the membrane material. A nanocomposite approach to membrane design is desirable in order to combine the advantages and eliminate the individual limitations of previously-reported polymeric and zeolitic membranes. In this work, a hollow-fiber membrane composed of a thin layer of polymer/zeolite nanocomposite material on a porous polymeric hollow fiber support is developed. The hollow fiber geometry offers considerable advantages in membrane surface area per unit volume, allowing for easier scaling and higher throughput than flat-film membranes. Poly(dimethyl siloxane) (PDMS) and pure-silica MFI zeolite (silicalite-1) were investigated for these membranes. Iso-octane was used to dilute the dope solution to provide thinner coatings. Previously-spun non-selective Torlon hollow fibers were used as the support layer for the nanocomposite coatings. To determine an acceptable method for coating fibers with uniform, defect-free coatings, flat-film membranes (0 to 60 wt% MFI on a solvent-free basis) and hollow-fiber membranes (0 and 20 wt% MFI) were fabricated using different procedures. Pervaporation experiments were run for all membranes at 65C with a 5 wt% ethanol feed. The effects of membrane thickness, fiber pretreatment, coating method, zeolite loading, and zeolite surface treatment on membrane pervaporation performance were investigated.

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Chen, Ying-Chun, and 陳瑩純. "Pervaporation Separation of Ethanol-Water Mixture Through Modified Polyurethane Membrane." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/37254868284842869773.

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碩士
中原大學
化學工程研究所
91
Polyurethane (PU) membrane has a poor selectively for separating ethanol-water mixtures, but it has good mechanical properties and chemical resistance. Polyurethane membrane is suitable to be used as matrix. In order to improve the hydrophilic property of the PU membrane, utilize chemical initiation to graft hydrophilic monomers, 2-hydroxyethyl methacrylate (HEMA) and 4-hydroxybutyl acrylate (HBA), onto polyurethane membrane, respectively. The grafted membrane was applied in the pervaporation processes for ethanol-water separation. Changing degree of grafting onto polyurethane membrane with initial monomer concentration added was investigated. The effects of degree of grafting, feed concentration, feed temperature, and different kinds of hydrophilic monomer on the variation of separation factor and permeation rate were investigated. In this study, the factors of the initial monomer concentration, and monomer structure were affected the degree of grafting on the PU membrane. Higher and lower initial monomer concentration makes lower degree of grafting. The effects of degree of grafting, feed composition, operating temperature, and different kinds of hydrophilic monomer on the separation factor and permeation rate of ethanol-water pervaporation of grafted membranes were studied. From the experiment results, the separation factors of 99.07 and 387.12 and permeation rates of 6133 and 6196 g/m2hr for the PU-g-HEMA membrane with a degree of grafting, 17.79%, and the PU-g-HBA membrane with a degree of grafting, 38.11%, respectively, under the conditions of 90wt% ethanol feed concentration, and 25℃ operating temperature. Compared with PU membrane, which possess the separation factor of 15.56 and permeation rate of 4335 g/m2hr, the modified PU membranes show appreciable improvement in the performance.

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"Pervaporation Of Ethanol/Water mixtures using PDMS mixed matrix membranes." Master's thesis, 2012. http://hdl.handle.net/2286/R.I.15095.

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abstract: ABSTRACT Among the major applications of pervaporation membrane processes, organic separation from organic/water mixtures is becoming increasingly important. The polydimethylsiloxane (PDMS) is among the most interesting and promising membranes and has been extensively investigated. PDMS is an "organicelastomeric material, often referred to as "silicone rubber", exhibiting excellent film-forming ability, thermal stability, chemical and physiological inertness. In this thesis incorporation of nanosilicalite-1 particles into a PDMS matrix and effect of particle loading and temperature variation on membrane performance was studied. A strong influence of zeolite was found on the pervaporation of alcohol/water mixtures using filled PDMS membranes. The mixed matrix membrane showed high separation factor at higher zeolite loading and high flux at higher temperature.
Dissertation/Thesis
M.S. Chemical Engineering 2012

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Yi-An, Liu, and 劉逸安. "On the Separation of Ethanol/Water by Pervaporation Using PEVAL Membranes." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/49666936094447369617.

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Wu, Tseng-tsen, and 吳政珍. "Pervaporation of water-ethanol mixtures through symmetric and asymmetric TPX membranes." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/03126754057611493828.

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Wang, Chun-Wei, and 王俊為. "The study on the purification of ethanol-water mixtures by pervaporation processes." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/13157332069887297912.

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碩士
淡江大學
化學工程與材料工程學系碩士班
99
The mass transport of ethanol solvent dehydration process by using pervaporation (PV) modules has been investigated theoretically. Pervaporation modules were employed instead of the traditional ethanol-solution distillation process which was known as a high energy consuming process. Two operation systems were studied in the present study such as batch and continuous systems. The solution-diffusion model was used to describe the mass transfer behavior in dense membrane layer. Accordingly, the overall mass-transfer resistance from the feed stream to the permeate side was thus calculated with the aid of resistance-in-series model. A mathematical treatment in two-dimensional partial differential equations (PDEs) has been developed by making the differential mass balance in the continuous PV system. The partial differential equations can be transformed into an ordinary differential equations (ODEs) system using finite difference technique and then solved by using the fourth-order Runge-Kutta method. The activity coefficient on ethanol/water mixture were estimated by UNIversal Functional Activity Coefficient (UNIFAC) method to obtain the partial pressure of non-ideal binary mixture for predicting the permeate flux across membrane. The influences of feed solution concentration, feed volumetric flow rate, and membrane material under fixed feed temperature on the mass flux across the membrane were obtained and the concentration polarization phenomena in the feed stream were also discussed.

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Yan, Leng-Kai, and 嚴稜凱. "Preparation of Hydrophilic Polyurethane Film and Pervaporation Separation of Ethanol/Water Solution." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/03680172982265130049.

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碩士
國立勤益科技大學
化工與材料工程系
103
Hydrophilic polyurethane (PU) films were prepared by adding hydrophilic monomer (2,2-Dimethylol Propionic Acid, DMPA).The polyurethane flim were used to separate ethanol/water mixture by pervaporation operation. The performances of pervaporation operation were increased with grapheme containing polyurethane flims. DMPA was used to substitute chain extender (1,4-Butylene Glycol, 1,4BG) to synthesis the PU films. It is found that the 0.5 equivalent DMPA substitution has the best pervaporation performance (Pervaporation Separation Index, PSI) 126006, and has a large pervaporation flux of 2306.13 g/m2 hr and separation factor of 54.64. Then graphene was added to the PUs will increase hybrid’s pervaporation separation factors. As with 0.007wt% graphene content of PU film, the pervaporation separation factor reaches 124.84 and 250598 PSI index.

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Tsai, Chen-Hsien, and 蔡鎮賢. "Preparation of thin film composite pervaporation membrane for dehydration of ethanol/water solution." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/30495716430405676681.

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碩士
嘉南藥理科技大學
環境工程與科學系暨研究所
99
The purpose of this study is to prepare polysulfone basde thin film composite membrane for dehydration ethanol of solution by pervaporation. Polysulfone was used as supported membrane. 1,3,5-benzenetricarbonyl chloride (TMC) was as the monomer in oil phase and 1,6-diaminohexane was used as the monomer in water phase in interfacial polymerization method. The effect of polymerization times, monomer concentration, impregnating time of monomer, sequence of monomer immersing, reaction temperature, post heat treatment, and various monomers on the separation performance of composite membranes were investigated. In this investigation, it was found that much more polymerization times induced the layer separation between the polyamide film and support membrane. The significant defect strongly declined the separation factor of composite membrane in pervaporation. The immersing step is an important factor to dominate the thin film formation. This study revealed that the oil phase first is the best choice to prepare a defect free composite membrane. The results indicated that the oil phase first increased much more monomer in the support layer and benefited the polymer growth in the interfacial layer and produced a well structure thin film. It is concluded that considering the optimum monomer concentration, reaction time, post treat treatment could prepare a good performance of TFC composite membranes. The SEM observations confirmed that the thin polyamide film was well coating on the support membrane and it was also showed that conditions of polymerization significantly affected the thin film thickness on the composite membranes. The contact angle measurement indicated the hydrophilic properties of composite membrane can be improved by coating the polyamide layer on the composited membrane by TFC method. The evidence of polyamide on the composite membrane was carried out by ATR-FT-IR analysis. The strong C=O and N-H bands were observed on the surface of composite membrane. The high performance pervaporation of TFC membranes for dehydration of ethanol mixture can be prepared by considering the optimum conditions in this study.

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Book chapters on the topic "Ethanol/water pervaporation"

1

Lee, Kew-Ho. "Ethanol–Water Mixtures: Separation by Pervaporation." In Encyclopedia of Membranes, 723–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 2016. http://dx.doi.org/10.1007/978-3-662-44324-8_1063.

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Lee, Kew-Ho. "Ethanol-Water Mixtures: Separation by Pervaporation." In Encyclopedia of Membranes, 1–5. Berlin, Heidelberg: Springer Berlin Heidelberg, 2014. http://dx.doi.org/10.1007/978-3-642-40872-4_1063-1.

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Kanse, N. G., R. P. Birmod, and S. D. Dawande. "Modeling of Ethanol/Water Separation by Pervaporation Membrane Process." In Novel Water Treatment and Separation Methods, 245–59. Toronto ; Waretown, NJ : Apple Academic Press, 2017. | "Outcome of national conference REACT- 16, organized by the Laxminarayan Institute of Technology, Nagpur, Maharashtr , India, in 2016"--Introduction. || Includes bibliographical references and index.: Apple Academic Press, 2017. http://dx.doi.org/10.1201/9781315225395-18.

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Jain, Anjali, Anjali Jain, Sushant Upadhyaya, Ajay K. Dalai, Ajay K. Dalai, Satyendra P. Chaurasia, Satyendra P. Chaurasia, and Satyendra P. Chaurasia. "Pervaporation for Ethanol-Water Separation and Effect of Fermentation Inhibitors." In Membrane Processes, 89–122. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2018. http://dx.doi.org/10.1002/9781119418399.ch3.

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Chovau, S., S. Gaykawad, A. J. J. Straathof, and B. Van der Bruggen. "Comparison of Membrane Performance of PDMS-Based Membranes during Ethanol/Water Pervaporation and Fermentation Broth Pervaporation." In ACS Symposium Series, 51–59. Washington, DC: American Chemical Society, 2011. http://dx.doi.org/10.1021/bk-2011-1078.ch005.

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Pessôa, L. T. G., R. Nobrega, and A. C. Habert. "Synthesis of Polyurethane Membranes for the Pervaporation of Ethanol-Water Mixtures." In Membranes and Membrane Processes, 549–61. Boston, MA: Springer US, 1986. http://dx.doi.org/10.1007/978-1-4899-2019-5_54.

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"Section 8 Fundamentals of Pervaporation for Ethanol/Water Separation." In The Membrane Alternative: Energy Implications for Industry, 69–78. CRC Press, 2004. http://dx.doi.org/10.1201/9781482296570-11.

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Liang, Liang, and Eli Ruckenstein. "Pervaporation of Ethanol–Water Mixtures through Polydimethylsiloxane-Polystyrene Interpenetrating Polymer Network Supported Membranes *." In Solution and Surface Polymerization, 259–71. CRC Press, 2019. http://dx.doi.org/10.1201/9780429027420-20.

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Ruckenstein, Eli, and Liang Liang. "Pervaporation of Ethanol–Water Mixtures through Polyvinyl Alcohol–Polyacrylamide Interpenetrating Polymer Network Membranes Unsupported and Supported on Polyethersulfone Ultrafiltration Membranes." In Solution and Surface Polymerization, 243–58. CRC Press, 2019. http://dx.doi.org/10.1201/9780429027420-19.

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Conference papers on the topic "Ethanol/water pervaporation"

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Yang, Jianhua, Hui Lin Han, Bin Yuan, Liang Zhou, Chunlong Kong, and Jinqu Wang. "Preparation of silicalite-1 zeolite membrane by a two-stage-varying temperature synthesis for pervaporation separation of ethanol from water." In International Conference on Materials for Renewable Energy & Environment (ICMREE 2011). IEEE, 2011. http://dx.doi.org/10.1109/icmree.2011.5930829.

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Mali, Mukund G., and Gavisiddappa S. Gokavi. "High performance organic/inorganic hybrid mixed matrix blend membranes of chitosan and hydroxyethyl cellulose for pervaporation separation of ethanol–water mixtures." In EMERGING TECHNOLOGIES: MICRO TO NANO (ETMN-2017): Proceedings of the 3rd International Conference on Emerging Technologies: Micro to Nano. Author(s), 2018. http://dx.doi.org/10.1063/1.5047703.

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