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Articoli di riviste sul tema "Membrane separation"

Autore: Grafiati

Pubblicato: 4 giugno 2021

Ultima modifica: 25 luglio 2025

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1

Liu, Congmin, Xin Zhang, Junxiang Zhai, Xuan Li, Xiuying Guo, and Guangli He. "Research progress and prospects on hydrogen separation membranes." Clean Energy 7, no. 1 (2023): 217–41. http://dx.doi.org/10.1093/ce/zkad014.

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Abstract Membrane separation technologies, with a broad application prospect in the field of hydrogen separation, are characterized by the simplicity of the devices, high energy efficiency and environmental friendliness. The performance of separation membranes is the primary factor that determines the efficiency of hydrogen separation. Therefore, the development of hydrogen separation membranes is always a research focus. This paper presents and reviews the research developments and features of organic membranes, inorganic membranes and hybrid matrix membranes for hydrogen separations. First,

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2

Burganos, Vasilis N. "Membranes and Membrane Processes." MRS Bulletin 24, no. 3 (1999): 19–22. http://dx.doi.org/10.1557/s0883769400051861.

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Membrane separation science has enjoyed tremendous progress since the first synthesis of membranes almost 40 years ago, which was driven by strong technological needs and commercial expectations. As a result, the range of successful applications of membranes and membrane processes is continuously broadening. An additional change lies in the nature of membranes, which is now extended to include liquid and gaseous materials, biological or synthetic. Membranes are understood to be thin barriers between two phases through which transport can take place under the action of a driving force, typicall

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Saha, S. N. "Membrane Separations." Current Research in Agriculture and Farming 3, no. 6 (2022): 19–33. http://dx.doi.org/10.18782/2582-7146.180.

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Membrane technology is widely utilised in industries for separation, concentration, filtering, and extraction operations. Membrane technology carries out various applications by utilising simple and specially designed semi-permeable membranes. It uses little energy and is thus considered a green technology. Ultrafiltration (UF), Microfiltration (MF), Nano-filtration (NF), and Reverse osmosis (RO) are membrane filtration methods that have a major influence on the organoleptic and nutritional qualities of juice. The adoption of a membrane method linked with enzymatic hydrolysis resulted in clari

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4

Li, Xue, Jun Pan, Francesca Macedonio, et al. "Fluoropolymer Membranes for Membrane Distillation and Membrane Crystallization." Polymers 14, no. 24 (2022): 5439. http://dx.doi.org/10.3390/polym14245439.

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Fluoropolymer membranes are applied in membrane operations such as membrane distillation and membrane crystallization where hydrophobic porous membranes act as a physical barrier separating two phases. Due to their hydrophobic nature, only gaseous molecules are allowed to pass through the membrane and are collected on the permeate side, while the aqueous solution cannot penetrate. However, these two processes suffer problems such as membrane wetting, fouling or scaling. Membrane wetting is a common and undesired phenomenon, which is caused by the loss of hydrophobicity of the porous membrane e

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A.A. Kittur. "MFI Zeolite Membranes and PV Separation of Isopropanol-Water Azeotropic Mixtures." International Research Journal on Advanced Engineering and Management (IRJAEM) 2, no. 03 (2024): 299–306. http://dx.doi.org/10.47392/irjaem.2024.0044.

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Membrane separation process has become one of the emerging technologies that undergo a rapid growth since few decades. Pervaporation (PV) is one among the membrane separation processes which gained foremost interest in the chemical and allied industries. It is an effective and energy-efficient technology that carries out separations, which are difficult to achieve by conventional separation processes. Inorganic membranes such as zeolite membranes with uniform, molecular-sized pores, selective adsorption and molecular sieving action offer unique type of pervaporation membrane for a number of se

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Raza, Ayesha, Sarah Farrukh, Arshad Hussain, Imranullah Khan, Mohd Hafiz Dzarfan Othman, and Muhammad Ahsan. "Performance Analysis of Blended Membranes of Cellulose Acetate with Variable Degree of Acetylation for CO2/CH4 Separation." Membranes 11, no. 4 (2021): 245. http://dx.doi.org/10.3390/membranes11040245.

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The separation and capture of CO2 have become an urgent and important agenda because of the CO2-induced global warming and the requirement of industrial products. Membrane-based technologies have proven to be a promising alternative for CO2 separations. To make the gas-separation membrane process more competitive, productive membrane with high gas permeability and high selectivity is crucial. Herein, we developed new cellulose triacetate (CTA) and cellulose diacetate (CDA) blended membranes for CO2 separations. The CTA and CDA blends were chosen because they have similar chemical structures, g

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7

Ma, Xiaoli, and Defei Liu. "Zeolitic Imidazolate Framework Membranes for Light Olefin/Paraffin Separation." Crystals 9, no. 1 (2018): 14. http://dx.doi.org/10.3390/cryst9010014.

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Propylene/propane and ethylene/ethane separations are performed by energy-intensive distillation processes, and membrane separation may provide substantial energy and capital cost savings. Zeolitic imidazolate frameworks (ZIFs) have emerged as promising membrane materials for olefin/paraffin separation due to their tunable pore size and chemistry property, and excellent chemical and thermal stability. In this review, we summarize the recent advances on ZIF membranes for propylene/propane and ethylene/ethane separations. Membrane fabrication methods such as in situ crystallization, seeded growt

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8

Yuan, Cui, Qi, Wei, and Qaisrani. "Experimental Investigation of Copper Mesh Substrate with Selective Wettability to Separate Oil/Water Mixture." Energies 12, no. 23 (2019): 4564. http://dx.doi.org/10.3390/en12234564.

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To solve the problem of low efficiency and poor adaptability during complex oil/water mixtures separation, two types of membranes with superhydrophilicity/underwater-superoleophobicity were successfully fabricated by oxidative reaction and in situ displacement reaction methods. A nanoneedle Cu(OH)2 structure was generated on the copper mesh substrate by oxidative reaction and feathery micro/nanoscale composite, while Ag structure was constructed at the surface of copper mesh substrate through in-situ replacement, then, membranes with superhydrophilic/underwater-superoleophobic properties were

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9

Talukder, Md Eman, Fariya Alam, Mst Monira Rahman Mishu, et al. "Sustainable Membrane Technologies for by-Product Separation of Non-Pharmaceutical Common Compounds." Water 14, no. 24 (2022): 4072. http://dx.doi.org/10.3390/w14244072.

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The Chinese pharmaceutical industry and traditional Chinese medicine (TCM) are both vital components of Chinese culture. Some traditional methods used to prepare TCMs have lost their conformity, and as a result, are producing lower-quality medicines. In this regard, the TCM sector has been looking for new ways to boost productivity and product quality. Membrane technology is environmentally-friendly, energy-saving technology, and more efficient than traditional technologies. Membrane separation is the most effective method for separating and cleaning the ingredients of the non-pharmaceutical c

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10

Sun, Hao, Naixin Wang, Yinghui Xu, et al. "Aromatic-aliphatic hydrocarbon separation with oriented monolayer polyhedral membrane." Science 386, no. 6725 (2024): 1037–42. http://dx.doi.org/10.1126/science.adq5577.

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Aromatic - aliphatic hydrocarbon separation is a challenging but important industrial process. Pervaporation membrane technology has the potential for separating these mixtures. We developed an oriented monolayer polyhedral (OMP) membrane that consists of a monolayer of ordered polyhedral particles and is anchored by hyperbranched polymers. It contains a high density of straight, selective nanochannels, enabling the preferential transport of aromatic molecules. Compared with traditional mixed-matrix membranes with random orientations, the OMP membrane improves the pervaporation separation inde

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Bera, Debaditya, Rimpa Chatterjee, and Susanta Banerjee. "Aromatic polyamide nonporous membranes for gas separation application." e-Polymers 21, no. 1 (2021): 108–30. http://dx.doi.org/10.1515/epoly-2021-0016.

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Abstract Polymer membrane-based gas separation is a superior economical and energy-efficient separation technique over other conventional separation methods. Over the years, different classes of polymers are investigated for their membrane-based applications. The need to search for new polymers for membrane-based applications has been a continuous research challenge. Aromatic polyamides (PAs), a type of high-performance materials, are known for their high thermal and mechanical stability and excellent film-forming ability. However, their insolubility and processing difficulty impede their grow

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Mondal, Arijit, and Chiranjib Bhattacharjee. "Membrane Transport for Gas Separation." Diffusion Foundations 23 (August 2019): 138–50. http://dx.doi.org/10.4028/www.scientific.net/df.23.138.

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Gas separations through organic membranes have been investigated from last several years and presently it has been accepted for commercial applications. This chapter will focus on membrane based gas separation mechanism as well as its application. This chapter will cover ‘‘diffusivity controlled’’ and ‘‘solubility controlled’’ mechanism and choice of suitable polymers for different gas phase applications like acidic gas, C3+ hydrocarbon, nitrogen, water vapor and helium. Diffusivity controlled mechanism performs on free volume elements of the glassy polymers via hindrance of chain packing by f

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13

Ma, Yi Hua. "Dense Palladium and Perovskite Membranes and Membrane Reactors." MRS Bulletin 24, no. 3 (1999): 46–49. http://dx.doi.org/10.1557/s0883769400051915.

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The development of high-temperature processes and tighter environmental regulations requires utilization of efficient gas-separation processes that will provide high fluxes, high selectivity of separation, and the ability to operate at elevated temperatures. Dense inorganic membranes and membrane reactors are especially well suited for high-temperature reactions and separations, due in part to their thermal stability and high separation selectivity (in theory, infinite). Furthermore, membrane reactors offer an inherent advantage of combining reaction, product concentration, and separation in a

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Zhang, Li Qing, and Gang Zhang. "Influence of Membrane Structure and Chemical Characteristics on Separation and Fouling of Nanofiltration Membranes." Advanced Materials Research 864-867 (December 2013): 394–98. http://dx.doi.org/10.4028/www.scientific.net/amr.864-867.394.

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Nanofiltration membranes act an important role in the advanced water treatment as well as waste water reclamation and other industrial separations. Therefore, an understanding of the factors affecting NF separation and membrane fouling in high-pressure membrane systems is needed. Recent studies have shown that membrane surface morphology and structure as well as surface chemical characteristics influence permeability, rejection, and fouling behavior of nanofiltration (NF) membranes. A comprehensive literature review is reported, targeting the physical-chemical characteristics of NF membrane af

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15

Gao, Lin, Huaiyou Wang, Yue Zhang, and Min Wang. "Nanofiltration Membrane Characterization and Application: Extracting Lithium in Lepidolite Leaching Solution." Membranes 10, no. 8 (2020): 178. http://dx.doi.org/10.3390/membranes10080178.

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This study concerns the feasibility of extracting lithium and separating aluminum from lepidolite leaching solution by nanofiltration. Four commercial nanofiltration (NF) membranes (DK, DL, NF270, and Duracid NF) were chosen to investigate ion separation performance in simulated lepidolite leaching solution. Membranes were characterized according to FT-IR, hydrophobicity, zeta potential, morphology, thickness, pore size, and hydraulic permeability to reveal the effect of membrane properties on separation. NF membranes were investigated including the retention ratio of SO42− and Li+, the separa

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Tanaka, Shunsuke, Kojiro Fuku, Naoki Ikenaga, Maha Sharaf, and Keizo Nakagawa. "Recent Progress and Challenges in the Field of Metal–Organic Framework-Based Membranes for Gas Separation." Compounds 4, no. 1 (2024): 141–71. http://dx.doi.org/10.3390/compounds4010007.

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Metal–organic frameworks (MOFs) represent the largest class of materials among crystalline porous materials ever developed, and have attracted attention as core materials for separation technology. Their extremely uniform pore aperture and nearly unlimited structural and chemical characteristics have attracted great interest and promise for applying MOFs to adsorptive and membrane-based separations. This paper reviews the recent research into and development of MOF membranes for gas separation. Strategies for polycrystalline membranes and mixed-matrix membranes are discussed, with a focus on s

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Suraya, Tiyastiti, Ramadhan Cendy Mega Pratiwi, and Adhitasari Suratman. "Effect of Ethylene Glycol on Gas Permeability and Selectivity of CH<sub>4</sub>/CO<sub>2</sub> Gas Separation in Zeolite/Alginate Membrane." Key Engineering Materials 927 (July 29, 2022): 131–37. http://dx.doi.org/10.4028/p-c46tw5.

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Zeolite have been widely used as gas separation material with its promising properties. One of gas separation technology available is using membrane composites because of its various benefits. A synthesis of membrane composites consists of zeolite/alginate then caried out to study the effect of the addition of Ethylene Glycol (EG) to the CH4/CO2 selectivity performance of the membrane. Membrane synthesis varied by its mass ratio of alginate:EG for 1:0, 1:0.25, 1:0.5, 1:1, and 1:2 and evaporated in the room temperature for 72 h. Characterization of the physico/chemical properties was done with

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18

Jiang, Zhongyi, Liangyin Chu, Xuemei Wu, et al. "Membrane-based separation technologies: from polymeric materials to novel process: an outlook from China." Reviews in Chemical Engineering 36, no. 1 (2019): 67–105. http://dx.doi.org/10.1515/revce-2017-0066.

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Abstract During the past two decades, research on membrane and membrane-based separation process has developed rapidly in water treatment, gas separation, biomedicine, biotechnology, chemical manufacturing and separation process integration. In China, remarkable progresses on membrane preparation, process development and industrial application have been made with the burgeoning of the domestic economy. This review highlights the recent development of advanced membranes in China, such as smart membranes for molecular-recognizable separation, ion exchange membrane for chemical productions, antif

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Kausar, Ayesha, and Ishaq Ahmad. "Graphene in gas separation membranes—State-of-the-art and potential spoors." Characterization and Application of Nanomaterials 7, no. 1 (2024): 4581. http://dx.doi.org/10.24294/can.v7i1.4581.

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Graphene and derivatives have been frequently used to form advanced nanocomposites. A very significant utilization of polymer/graphene nanocomposite was found in the membrane sector. The up-to-date overview essentially highpoints the design, features, and advanced functions of graphene nanocomposite membranes towards gas separations. In this concern, pristine thin layer graphene as well as graphene nanocomposites with poly(dimethyl siloxane), polysulfone, poly(methyl methacrylate), polyimide, and other matrices have been perceived as gas separation membranes. In these membranes, the graphene d

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Thompson, J. E., C. D. Froese, Y. Hong, K. A. Hudak, and M. D. Smith. "Membrane deterioration during senescence." Canadian Journal of Botany 75, no. 6 (1997): 867–79. http://dx.doi.org/10.1139/b97-096.

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The lipid bilayers of plant membranes are normally liquid crystalline, reflecting the inherent rotational motion of membrane fatty acids at physiological temperature. With the onset of senescence, the chemical composition of membrane lipids changes resulting in lipid phase separations within the bilayer. These phase changes render the membranes leaky and lead to loss of essential ion gradients and impairment of cell function. The separation of lipid phases appears to be attributable to an accumulation of lipid metabolites in the bilayer that are formed during turnover and metabolism of membran

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Zhu, Xiaoying, and Renbi Bai. "Separation of Biologically Active Compounds by Membrane Operations." Current Pharmaceutical Design 23, no. 2 (2017): 218–30. http://dx.doi.org/10.2174/1381612822666161027153823.

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Background: Bioactive compounds from various natural sources have been attracting more and more attention, owing to their broad diversity of functionalities and availabilities. However, many of the bioactive compounds often exist at an extremely low concentration in a mixture so that massive harvesting is needed to obtain sufficient amounts for their practical usage. Thus, effective fractionation or separation technologies are essential for the screening and production of the bioactive compound products. The applicatons of conventional processes such as extraction, distillation and lyophilisat

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Zhang, Hongli, Yiling Zheng, Shuwen Yu, Weixing Chen, and Jie Yang. "A Review of Advancing Two-Dimensional Material Membranes for Ultrafast and Highly Selective Liquid Separation." Nanomaterials 12, no. 12 (2022): 2103. http://dx.doi.org/10.3390/nano12122103.

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Membrane-based nanotechnology possesses high separation efficiency, low economic and energy consumption, continuous operation modes and environmental benefits, and has been utilized in various separation fields. Two-dimensional nanomaterials (2DNMs) with unique atomic thickness have rapidly emerged as ideal building blocks to develop high-performance separation membranes. By rationally tailoring and precisely controlling the nanochannels and/or nanoporous apertures of 2DNMs, 2DNM-based membranes are capable of exhibiting unprecedentedly high permeation and selectivity properties. In this revie

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Avornyo, Amos, Arumugham Thanigaivelan, Rambabu Krishnamoorthy, Shadi W. Hassan, and Fawzi Banat. "Ag-CuO-Decorated Ceramic Membranes for Effective Treatment of Oily Wastewater." Membranes 13, no. 2 (2023): 176. http://dx.doi.org/10.3390/membranes13020176.

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Although ultrafiltration is a reliable method for separating oily wastewater, the process is limited by problems of low flux and membrane fouling. In this study, for the first time, commercial TiO2/ZrO2 ceramic membranes modified with silver-functionalized copper oxide (Ag-CuO) nanoparticles are reported for the improved separation performance of emulsified oil. Ag-CuO nanoparticles were synthesized via hydrothermal technique and dip-coated onto commercial membranes at varying concentrations (0.1, 0.5, and 1.0 wt.%). The prepared membranes were further examined to understand the improvements i

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Astorino, Carmela, Eugenio De Nardo, Stefania Lettieri, Giuseppe Ferraro, Candido Fabrizio Pirri, and Sergio Bocchini. "Advancements in Gas Separation for Energy Applications: Exploring the Potential of Polymer Membranes with Intrinsic Microporosity (PIM)." Membranes 13, no. 12 (2023): 903. http://dx.doi.org/10.3390/membranes13120903.

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Membrane-based Polymers of Intrinsic Microporosity (PIMs) are promising candidates for energy-efficient industrial gas separations, especially for the separation of carbon dioxide over methane (CO2/CH4) and carbon dioxide over nitrogen (CO2/N2) for natural gas/biogas upgrading and carbon capture from flue gases, respectively. Compared to other separation techniques, membrane separations offer potential energy and cost savings. Ultra-permeable PIM-based polymers are currently leading the trade-off between permeability and selectivity for gas separations, particularly in CO2/CH4 and CO2/N2. Thes

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Ahmad, Fatin Nurwahdah, Norazlianie Sazali, and Mohd Hafiz Dzafran Othman. "A Mini Review on Carbon Molecular Sieve Membrane for Oxygen Separation." Journal of Modern Manufacturing Systems and Technology 4, no. 1 (2020): 23–35. http://dx.doi.org/10.15282/jmmst.v4i1.3800.

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Membrane-based technology has proved its practicality in gas separation through its performance. Various type of membranes has been explored, showing that each type of them have their own advantages and disadvantages. Polymeric membranes have been widely used to separate O2/N2, however, its drawbacks lead to the development of carbon molecular sieve membrane. Carbon molecular sieve membranes have demonstrated excellent separation performance for almost similar kinetic diameter molecules such as O2/N2. Many polymer precursors can be used to produce carbon molecular sieve membrane through carbon

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Roslin, Putri Nadhirah, Sazlinda Binti Kamaruzaman, Ili Syazana Johari, and Noorfatimah Yahaya. "Optimizing Membrane Performance using Various Filler Materials in Membrane Fabrication for Enhancing Gas Separation Efficiency: A Review." Trends in Sciences 21, no. 12 (2024): 8399. http://dx.doi.org/10.48048/tis.2024.8399.

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The membrane technology has been receiving significant interest in both research and industrial applications, particularly in the separation of CO2/CH4. These methods, as published, aim to overcome the limitations of pure polymeric membranes and offer an alternative approach in separation techniques where membrane technology can overcome the constraints of conventional methods such as Solid Phase Extraction (SPE) and Liquid-Liquid Extraction (LLE). Fabricating membranes using fillers as adsorbents can enhance membrane separation performance due to their porous nature. Hence, the selection of s

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Ren, Yi, Hui Ma, Jinsu Kim, et al. "Fluorine-rich poly(arylene amine) membranes for the separation of liquid aliphatic compounds." Science 387, no. 6730 (2025): 208–14. https://doi.org/10.1126/science.adp2619.

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We explored the potential for membrane materials to reduce energy and carbon requirements for the separation of aliphatic hydrocarbon feedstocks and products. We developed a series of fluorine-rich poly(arylene amine) polymer membranes that feature rigid polymer backbones with segregated perfluoroalkyl side chains. This combination imbues the polymers with resistance to dilation induced by hydrocarbon immersion without the loss of solution-based membrane fabrication techniques. These materials exhibit good separation of liquid-phase alkane isomers at ambient temperatures. The integration of th

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Anupreet, Kaur. "Membrane processes – contemporary relevance & prospects." Abstracts of International Conferences & Meetings 1, no. 6 (2021): 8. https://doi.org/10.5281/zenodo.5594586.

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<strong>Introduction: </strong>Membrane mediated separation is a versatile unit operation that can be used at various stages of product recovery for separation, concentration or purification of products. Membrane science is a highly interdisciplinary field, comprising of engineering, material science as well as chemistry. Over the last few decades, membranes have grown from a basic laboratory tool to a large scale industrial tool. Applications include desalination of sea water, removal of cells or cell debris, protein concentration, removal of virus, purification of food and pharmaceutical pro

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Shekhah, Osama, Valeriya Chernikova, Youssef Belmabkhout, and Mohamed Eddaoudi. "Metal–Organic Framework Membranes: From Fabrication to Gas Separation." Crystals 8, no. 11 (2018): 412. http://dx.doi.org/10.3390/cryst8110412.

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Gas membrane-based separation is considered one of the most effective technologies to address energy efficiency and large footprint challenges. Various classes of advanced materials, including polymers, zeolites, porous carbons, and metal–organic frameworks (MOFs) have been investigated as potential suitable candidates for gas membrane-based separations. MOFs possess a uniquely tunable nature in which the pore size and environment can be controlled by connecting metal ions (or metal ion clusters) with organic linkers of various functionalities. This unique characteristic makes them attractive

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Pei, Xueliang, Lei Zhang, Yongqian Ma, Hengtong Zhang, Xinxin Zhao, and Yonghai Gao. "Research on Downhole Gas Separation Method Based on a PDMS Separation Membrane." Energies 16, no. 10 (2023): 4255. http://dx.doi.org/10.3390/en16104255.

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Safe and efficient deep drilling is a fundamental requirement for the development of oil and gas resources. In this regard, the application of membrane separation technology for drilling fluid gas separation and monitoring is highly significant. In this study, several commonly used permeable membrane materials were analyzed, and a PDMS separation membrane was preliminarily selected as a suitable material for downhole gas separation. We designed an experimental setup to investigate the separation performance of PDMS membranes. The effects of the separation pressure difference, operating tempera

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Yi, Shouliang, Bader Ghanem, Yang Liu, Ingo Pinnau, and William J. Koros. "Ultraselective glassy polymer membranes with unprecedented performance for energy-efficient sour gas separation." Science Advances 5, no. 5 (2019): eaaw5459. http://dx.doi.org/10.1126/sciadv.aaw5459.

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Membrane-based separation of combined acid gases carbon dioxide and hydrogen sulfide from natural gas streams has attracted increasing academic and commercial interest. These feeds are referred to as “sour,” and herein, we report an ultra H2S-selective and exceptionally permeable glassy amidoxime-functionalized polymer of intrinsic microporosity for membrane-based separation. A ternary feed mixture (with 20% H2S:20% CO2:60% CH4) was used to demonstrate that a glassy amidoxime-functionalized membrane provides unprecedented separation performance under challenging feed pressures up to 77 bar. Th

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Tang, Chao, Andriy Yaroshchuk, and Merlin L. Bruening. "Ion Separations Based on Spontaneously Arising Streaming Potentials in Rotating Isoporous Membranes." Membranes 12, no. 6 (2022): 631. http://dx.doi.org/10.3390/membranes12060631.

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Highly selective ion separations are vital for producing pure salts, and membrane-based separations are promising alternatives to conventional ion-separation techniques. Our previous work demonstrated that simple pressure-driven flow through negatively charged isoporous membranes can separate Li+ and K+ with selectivities as high as 70 in dilute solutions. The separation mechanism relies on spontaneously arising streaming potentials that induce electromigration, which opposes advection and separates cations based on differences in their electrophoretic mobilities. Although the separation techn

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Melnik, Alexandra, Alena Bogoslovtseva, Anna Petrova, Alexey Safonov, and Christos N. Markides. "Oil–Water Separation on Hydrophobic and Superhydrophobic Membranes Made of Stainless Steel Meshes with Fluoropolymer Coatings." Water 15, no. 7 (2023): 1346. http://dx.doi.org/10.3390/w15071346.

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In this work, membranes were synthesized by depositing fluoropolymer coatings onto metal meshes using the hot wire chemical vapor deposition (HW CVD) method. By changing the deposition parameters, membranes with different wetting angles were obtained, with water contact angles for different membranes over a range from 130° ± 5° to 170° ± 2° and a constant oil contact angle of about 80° ± 2°. These membranes were used for the separation of an oil–water emulsion in a simple filtration test. The main parameters affecting the separation efficiency and the optimal separation mode were determined. T

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Zhou, Qibo, Qibing Chang, Yao Lu, and Jing Sun. "Mussel-Inspired Construction of Silica-Decorated Ceramic Membranes for Oil–Water Separation." Ceramics 7, no. 1 (2024): 250–63. http://dx.doi.org/10.3390/ceramics7010016.

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In recent years, ceramic membranes have received widespread focus in the area of liquid separation because of their high permeability, strong hydrophilicity, and good chemical stability. However, in practical applications, the surface of ceramic membranes is prone to be contaminated, which degrades the permeation flux of ceramic membranes during the separation process. Inspired by mussels, we imitate the biomimetic mineralization process to prepare a ceramic membrane of nano–silica on the pre-modified zirconia surface by co-deposited polydopamine/polyethyleneimine. The modified ceramic membran

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Borpatra Gohain, Moucham, Sachin Karki, Diksha Yadav, et al. "Development of Antifouling Thin-Film Composite/Nanocomposite Membranes for Removal of Phosphate and Malachite Green Dye." Membranes 12, no. 8 (2022): 768. http://dx.doi.org/10.3390/membranes12080768.

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Nowadays polymer-based thin film nanocomposite (TFN) membrane technologies are showing key interest to improve the separation properties. TFN membranes are well known in diverse fields but developing highly improved TFN membranes for the removal of low concentration solutions is the main challenge for the researchers. Application of functional nanomaterials, incorporated in TFN membranes provides better performance as permeance and selectivity. The polymer membrane-based separation process plays an important role in the chemical industry for the isolation of products and recovery of different

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Du, Jing, Jilei Jiang, Zhigang Xue, et al. "Template-Free Synthesis of High Dehydration Performance CHA Zeolite Membranes with Increased Si/Al Ratio Using SSZ-13 Seeds." Membranes 14, no. 4 (2024): 78. http://dx.doi.org/10.3390/membranes14040078.

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Pervaporation is an energy-efficient alternative to conventional distillation for water/alcohol separations. In this work, a novel CHA zeolite membrane with an increased Si/Al ratio was synthesized in the absence of organic templates for the first time. Nanosized high-silica zeolite (SSZ-13) seeds were used for the secondary growth of the membrane. The separation performance of membranes in different alcohol–aqueous mixtures was measured. The effects of water content in the feed and the temperature on the separation performance using pervaporation and vapor permeation were also studied. The be

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37

Katia Cecilia, de Souza Figueiredo, de Jesus Barcelos Gustavo Feliciano, and Ferlauto André Santarosa. "Graphene Membranes: From Reverse Osmosis to Gas Separation." International Journal of Membrane Science and Technology 8, no. 2 (2021): 1–27. http://dx.doi.org/10.15379/2410-1869.2021.08.02.01.

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Graphene membrane is a promising technology to help both carbon dioxide separation from flue gas and water desalination. This work reported the importance of membrane separation processes, the evolution of polymeric membranes before the discovery of graphene and how this material fits into this scenario. In addition, reverse osmosis and gas separations have been discussed as promising methods to reduce the occurrence of freshwater scarcity events and slow global warming. For all these separation techniques, the current state of graphene membranes technology and what advances might be brought b

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Schmeling, Nadine, Roman Konietzny, Daniel Sieffert, Patrick Rölling, and Claudia Staudt. "Functionalized copolyimide membranes for the separation of gaseous and liquid mixtures." Beilstein Journal of Organic Chemistry 6 (August 12, 2010): 789–800. http://dx.doi.org/10.3762/bjoc.6.86.

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Functionalized copolyimides continue to attract much attention as membrane materials because they can fulfill the demands for industrial applications. Thus not only good separation characteristics but also high temperature stability and chemical resistance are required. Furthermore, it is very important that membrane materials are resistant to plasticization since it has been shown that this phenomenon leads to a significant increase in permeability with a dramatic loss in selectivity. Plasticization effects occur with most polymer membranes at high CO2 concentrations and pressures, respective

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Sum, Jing Yao. "Book Review: Application of Membranes in the Petroleum Industry." Journal of Applied Membrane Science & Technology 28, no. 3 (2024): 85–87. https://doi.org/10.11113/jamst.v28n3.307.

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Abstract (sommario):

This book [1] provides a comprehensive overview of the roles of membrane technology in the petroleum industry, covering membrane selection, materials, challenges, and applications across the upstream sector in oil and gas production and midstream refining. It includes applications for enhanced oil recovery, midstream refining processes for hydrocarbon separation, and contaminant capture, especially for environmental remediation, focusing on the treatment of byproducts like hydrogen sulfide from petroleum processing. It encompasses three main areas: a general conceptualization of membrane techn

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Xie, Zean, Xinping Wang, Lu Li, and Jinhui Pang. "Separation of methyl glycosides and glycerol from aqueous fraction of methyl bio-oils using nanofiltration." BioResources 14, no. 1 (2018): 575–91. http://dx.doi.org/10.15376/biores.14.1.575-591.

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The feasibility of separating small molecular organic compounds in the aqueous fraction of methyl bio-oils (AFMBO) using nanofiltration (NF) and reverse osmosis (RO) membranes was studied. Four kinds of commercially available NF and RO membranes were studied preliminarily by using model solutions (aqueous solution of methyl glycosides and glycerol). The membrane module was spiral wound, which is a more suitable format for industrialization than the flat-sheet format for dead-end filtration. The NF400-600 membrane exhibited the best separation performance; the permeate flux was 48.6 L/(m2·h), t

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41

Mohshim, Dzeti Farhah, Hilmi bin Mukhtar, Zakaria Man, and Rizwan Nasir. "Latest Development on Membrane Fabrication for Natural Gas Purification: A Review." Journal of Engineering 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/101746.

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Abstract (sommario):

In the last few decades, membrane technology has been a great attention for gas separation technology especially for natural gas sweetening. The intrinsic character of membranes makes them fit for process escalation, and this versatility could be the significant factor to induce membrane technology in most gas separation areas. Membranes were synthesized with various materials which depended on the applications. The fabrication of polymeric membrane was one of the fastest growing fields of membrane technology. However, polymeric membranes could not meet the separation performances required esp

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Abejón, Ricardo, Clara Casado-Coterillo, and Aurora Garea. "Multiobjective Optimization Based on “Distance-to-Target” Approach of Membrane Units for Separation of CO2/CH4." Processes 9, no. 11 (2021): 1871. http://dx.doi.org/10.3390/pr9111871.

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Abstract (sommario):

The effective separation of CO2 and CH4 mixtures is essential for many applications, such as biogas upgrading, natural gas sweetening or enhanced oil recovery. Membrane separations can contribute greatly in these tasks, and innovative membrane materials are being developed for this gas separation. The aim of this work is the evaluation of the potential of two types of highly CO2-permeable membranes (modified commercial polydimethylsiloxane and non-commercial ionic liquid–chitosan composite membranes) whose selective layers possess different hydrophobic and hydrophilic characteristics for the s

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Galiano, Francesco, Asma Msahel, Francesca Russo, et al. "Enhancing the Separation Performance of Chitosan Membranes Through the Blending with Deep Eutectic Solvents for the Pervaporation of Polar/Non-Polar Organic Mixtures." Membranes 14, no. 11 (2024): 237. http://dx.doi.org/10.3390/membranes14110237.

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Abstract (sommario):

This study explores the development of chitosan-based membranes blended with three distinct deep eutectic solvents (DESs) for the pervaporation separation of methanol and methyl tert-butyl ether. DESs were selected for their eco-friendly properties and their potential to enhance membrane performance. The chitosan (CS) membranes, both crosslinked and non-crosslinked, were characterized in terms of morphology, chemical composition, wettability, mechanical resistance, and solvent uptake. Pervaporation tests revealed that incorporating DESs significantly enhanced the membranes’ selective permeabil

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Da Conceicao, Marcos, Leo Nemetz, Joanna Rivero, Katherine Hornbostel, and Glenn Lipscomb. "Gas Separation Membrane Module Modeling: A Comprehensive Review." Membranes 13, no. 7 (2023): 639. http://dx.doi.org/10.3390/membranes13070639.

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Abstract (sommario):

Membrane gas separation processes have been developed for diverse gas separation applications that include nitrogen production from air and CO2 capture from point sources. Membrane process design requires the development of stable and robust mathematical models that can accurately quantify the performance of the membrane modules used in the process. The literature related to modeling membrane gas separation modules and model use in membrane gas separation process simulators is reviewed in this paper. A membrane-module-modeling checklist is proposed to guide modeling efforts for the research an

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Lau, Woei-Jye, and Antonia Pérez de los Ríos. "Membrane Separation." Chemical Engineering & Technology 41, no. 2 (2018): 210. http://dx.doi.org/10.1002/ceat.201870025.

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46

Fazullin, D. D., G. V. Mavrin, and I. G. Shaikhiev. "Air Cleaning from Organic Compounds Using a Nanofiltration Composite Membrane Based on Cellulose Acetate and a Commercial Membrane of OPMN-P Brand." Мембраны и мембранные технологии 13, no. 1 (2023): 56–64. http://dx.doi.org/10.31857/s2218117223010029.

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Abstract (sommario):

Nanofiltration membranes were used to separate the vapor–air mixture containing organic compounds. The membrane was obtained on a filter paper substrate by pouring with a three-component polymer solution. The surface layers were deposited on the substrate by sequentially alternating the stages of membrane drying. The resulting membrane has hydrophilic properties, the porosity of the resulting membrane is 51%. The membrane thickness determined by SEM was 98 µm. The retention capacity of the membranes was studied by separating model mixtures of ethanol–air and gasoline–air. The membrane permeabi

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47

Wang, Luchen, Yan Wang, Lianying Wu, and Gang Wei. "Fabrication, Properties, Performances, and Separation Application of Polymeric Pervaporation Membranes: A Review." Polymers 12, no. 7 (2020): 1466. http://dx.doi.org/10.3390/polym12071466.

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Abstract (sommario):

Membrane separation technologies have attracted great attentions in chemical engineering, food science, analytical science, and environmental science. Compared to traditional membrane separation techniques like reverse osmosis (RO), ultrafiltration (UF), electrodialysis (ED) and others, pervaporation (PV)-based membrane separation shows not only mutual advantages such as small floor area, simplicity, and flexibility, but also unique characteristics including low cost as well as high energy and separation efficiency. Recently, different polymer, ceramic and composite membranes have shown promis

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Matsumoto, Kanji, and Kazuho Nakamura. "Membrane Separation in Bioseparation." membrane 21, no. 1 (1996): 49–56. http://dx.doi.org/10.5360/membrane.21.49.

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Kusuki, Yoshihiro. "Preparation and Application of Carbon Dioxide Separation Membrane and Hydrogen Separation Membrane." membrane 21, no. 5 (1996): 276–82. http://dx.doi.org/10.5360/membrane.21.276.

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50

Siekierka, Anna, Katarzyna Smolińska-Kempisty, and Joanna Wolska. "Enhanced Specific Mechanism of Separation by Polymeric Membrane Modification—A Short Review." Membranes 11, no. 12 (2021): 942. http://dx.doi.org/10.3390/membranes11120942.

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Abstract (sommario):

Membrane technologies have found a significant application in separation processes in an exceeding range of industrial fields. The crucial part that is decided regarding the efficiency and effectivity of separation is the type of membrane. The membranes deal with separation problems, working under the various mechanisms of transportation of selected species. This review compares significant types of entrapped matter (ions, compounds, and particles) within membrane technology. The ion-exchange membranes, molecularly imprinted membranes, smart membranes, and adsorptive membranes are investigated

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