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Journal articles on the topic 'Membrane Gas Separation'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

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 functional groups and restricted by the permselectivity. Other mechanism performs on the basis of molecular structure with affinity towards the target molecule and follows enhanced solution-diffusion rout. Commercially available organic membrane materials for Carbon dioxide (CO2) removal are discussed along with process design. Membranes based separation process for heavy hydrocarbon recovery, nitrogen separation, helium separation and dehydration are less developed. This article will help us to focus on the future direction of those applications based on membrane technology. Keywords: Membrane, C3+ hydrocarbon, Diffusivity controlled, Solubility controlled, Selectivity, Permeability. *Corresponding author: E-mail address: c.bhatta@gmail.com (Chiranjib Bhattacharjee), Tel.: +91-9836402118.

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2

Fain, D. E. "Membrane Gas Separation Principles." MRS Bulletin 19, no. 4 (April 1994): 40–43. http://dx.doi.org/10.1557/s0883769400039506.

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Some industrial processes require the separation of gas or vapor mixtures. Methods for separating the mixtures vary from separation by diffusion to separation by distillation. Many of the methods, such as distillation, are energy intensive. Membranes can reduce the energy required to produce a desired separation. Because of their corrosion resistance and high temperature applications, engineered inorganic membranes can significantly increase the efficiency of many of these processes. The magnitude of the separation factor, available operating conditions, enrichment, yield, and cost of the membranes play a large role in determining whether membranes can be more economical than other methods of separation. These factors have to be evaluated on a case-by-case basis.Martin Marietta Energy Systems' Office of Technology Transfer conducted a preliminary market survey with the assistance of the University of Tennessee and commercial marketing experts in inorganic membranes. The survey assumed that membranes could be made with permeabilities a factor of 3 larger and with cost per unit area a factor of 3 smaller than is currently available. The results indicated that active implementation of such technology could expect to achieve the following results:• $2 billion dollar per year sales market,• $16.6 billion increase in the national GDP,• $2 billion improvement in the balance of trade, and• 6 quads per year decrease in energy use.

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3

Bera, Debaditya, Rimpa Chatterjee, and Susanta Banerjee. "Aromatic polyamide nonporous membranes for gas separation application." e-Polymers 21, no. 1 (January 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 growth in membrane-based applications. In this review, we will focus on the PAs that are investigated for membrane-based gas separations applications. We will also address the polymer design principal and its effects on the polymer solubility and its gas separation properties. Accordingly, some of the aromatic PAs developed in the authors’ laboratory that showed significant improvement in the gas separation efficiency and placed them in the 2008 Robeson upper bound are also included in this review. This review will serve as a guide to the future design of PA membranes for gas separations.

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4

HARAYA, Kenji. "Gas separation process with membrane." membrane 13, no. 2 (1988): 83–92. http://dx.doi.org/10.5360/membrane.13.83.

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5

Yazawa, Tetsuo. "Glass Membrane for Gas Separation." membrane 20, no. 3 (1995): 183–93. http://dx.doi.org/10.5360/membrane.20.183.

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6

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 (March 29, 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, good separation performance, and its economical and green nature. The best position in Robeson’s upper bound curve at 5 bar was obtained with the membrane containing 80 wt.% CTA and 20 wt.% CDA, which shows the CO2 permeability of 17.32 barrer and CO2/CH4 selectivity of 18.55. The membrane exhibits 98% enhancement in CO2/CH4 selectivity compared to neat membrane with only a slight reduction in CO2 permeability. The optimal membrane displays a plasticization pressure of 10.48 bar. The newly developed blended membranes show great potential for CO2 separations in the natural gas industry.

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7

Haraya, Kenji. "Improvement of Gas Separation Membranes." membrane 26, no. 2 (2001): 79–85. http://dx.doi.org/10.5360/membrane.26.79.

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8

Kita, Hidetoshi. "Gas Separation through Inorganic Membranes." MEMBRANE 39, no. 3 (2014): 132–38. http://dx.doi.org/10.5360/membrane.39.132.

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9

Koros, W. J., and G. K. Fleming. "Membrane-based gas separation." Journal of Membrane Science 83, no. 1 (August 1993): 1–80. http://dx.doi.org/10.1016/0376-7388(93)80013-n.

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10

Shekhah, Osama, Valeriya Chernikova, Youssef Belmabkhout, and Mohamed Eddaoudi. "Metal–Organic Framework Membranes: From Fabrication to Gas Separation." Crystals 8, no. 11 (October 31, 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 for the fabrication of thin membranes, as both the diffusion and solubility components of permeability can be altered. Numerous studies have been published on the synthesis and applications of MOFs, as well as the fabrication of MOF-based thin films. However, few studies have addressed their gas separation properties for potential applications in membrane-based separation technologies. Here, we present a synopsis of the different types of MOF-based membranes that have been fabricated over the past decade. In this review, we start with a short introduction touching on the gas separation membrane technology. We also shed light on the various techniques developed for the fabrication of MOF as membranes, and the key challenges that still need to be tackled before MOF-based membranes can successfully be used in gas separation and implemented in an industrial setting.

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11

Xiao, Wu, Pei Gao, Yan Dai, Xuehua Ruan, Xiaobin Jiang, Xuemei Wu, Yuanxin Fang, and Gaohong He. "Efficiency Separation Process of H2/CO2/CH4 Mixtures by a Hollow Fiber Dual Membrane Separator." Processes 8, no. 5 (May 9, 2020): 560. http://dx.doi.org/10.3390/pr8050560.

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Hydrogen purification and CO2 capture are of great significance in refineries and pre-combustion power plants. A dual membrane separator offers an alternative approach for improving H2/CO2 separation efficiency. In this work, H2/CO2/CH4 ternary gas mixtures separation can be achieved by a dual membrane separator with an integrated polyimide (PI) membrane and polydimethylsiloxane/polyetherimide (PDMS/PEI) composite membrane. A hollow fiber dual membrane separation equipment is designed and manufactured. Through the self-designed device, the effects of stage cut, operating temperature, operating pressure, and membrane area ratio on separation performance of dual membrane separator have been studied. The results indicate that, at a high stage cut, a dual membrane separator has obvious advantages over a single membrane separator. Operating temperature has a significant impact on gas permeation rates. At 25 °C, a dual membrane separator can obtain the highest purity of H2 and CO2. By increasing operating pressure, the purity and recovery of H2 and CO2 can be improved simultaneously. The effect of the membrane area ratio on the performance of the dual membrane separator was studied. When the permeate flows of two membranes are approximately equal by changing the membrane area ratio, the overall performance of the dual membrane separator is the best. On the basis of its synergy in promoting separation, the dual membrane separator holds great industrial application potential.

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12

Burganos, Vasilis N. "Membranes and Membrane Processes." MRS Bulletin 24, no. 3 (March 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, typically a pressure difference and generally a chemical or electrical potential difference.An attempt at functional classification of membranes would have to include diverse categories such as gas separation, pervaporation, reverse osmosis, micro- and ultrafiltration, and biomedical separations. The dominant application of membranes is certainly the separation of mixed phases or fluids, homogeneous or heterogeneous. Separation of a mixture can be achieved if the difference in the transport coefficients of the components of interest is sufficiently large. Membranes can also be used in applications other than separation targeting: They can be employed in catalytic reactors, energy storage and conversion systems, as key components of artificial organs, as supports for electrodes, or even to control the rate of release of both useful and dangerous species.In order to meet the requirements posed by the aforementioned applications, membranes must combine several structural and functional properties.

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13

Ohya, Haruhiko, Hiroyuki Futamura, Takeshi Ichihara, Youichi Negishi, and Kanji Matsumoto. "Research of polyimid asymmetric membrane for gas separation. Foundamental preparation of polyimid asymmetric membrane for gas separation." membrane 15, no. 3 (1990): 139–46. http://dx.doi.org/10.5360/membrane.15.139.

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14

Mohammad R. Gharibzahedi, Sayyed, and Javad Karimi-Sabet. "Gas Separation in Nanoporous Graphene from Molecular Dynamics Simulation." Chemical Product and Process Modeling 11, no. 1 (March 1, 2016): 29–33. http://dx.doi.org/10.1515/cppm-2015-0059.

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Abstract Membrane separation processes are energetically efficient compared to the other techniques such as cryogenic distillation and gas adsorption techniques. It is well known that a membrane's permeance is inversely proportional to its thickness. Regard to its single atom thickness and its mechanical strength, nanoporous graphene has been proposed as a very promising candidate for highly efficient gas separation applications. In this work, using classical molecular dynamics, we report the separation performance of such membrane in a molecular-sieving process as a function of pore size and chemical functionalization of pore rim. To investigate the membrane separation capability, we have calculated the permeance of each gas molecule of the considered binary mixtures through the membranes and therefore the separation selectivity. We investigated the separation performance of nanoporous graphene for CO2/N2, H2/CH4 and He/CH4 with 50:50 proportions of each component and the separation selectivity has been calculated. We also calculated the potential of the mean force to characterize the energy profile for gas transmission. The separation selectivity reduced by increasing the pore size. However, presence of chemical functionally pores in the membrane increased the separation selectivity. Furthermore, the gas permeance through nanoporous graphene membranes is related not only to transport rate to the graphene surface as well as kinetic diameters but also to molecular adsorbed layer which is formed on the surface. The flux of molecules through the nanopores is also dependent on pore chemistry which is considered as gas-pore interactions in the molecular simulations and can be a sizable factor in simulation in contrast to experimental observations. This study suggests that nanoporous graphene could represent a suitable membrane for gas separation.

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15

Jusoh, Norwahyu, Yin Fong Yeong, Kok Keong Lau, and Mohd Shariff Azmi. "Membranes for Gas Separation Current Development and Challenges." Applied Mechanics and Materials 773-774 (July 2015): 1085–90. http://dx.doi.org/10.4028/www.scientific.net/amm.773-774.1085.

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—A new bang of natural gas demand has opened up the opportunities towards the utilization of membrane technology for the purification process.The advantages in terms of smaller footprint, lower weight, minimum utility requirement and low labor intensity make them appropriate for wide scale applications. Polymeric membrane is one of the greatest emerging fields in membrane material development. Nevertheless, the separation performance of the existing polymeric materials were reached a limit in the trade-off between permeability and selectivity. The development of inorganic material gives a significance improvement in membrane performance but it outrageously expensive for many applications and having complicated procedure during fabrication process have limit the application of inorganic membrane in gas separation. Thus, a rapid demand in membrane technology for gas separation and the effort toward seeking the membranes with higher permeability and selectivity has motivated the development of mixed matrix membrane. Mixed matrix membrane (MMM) which incorporating inorganic fillers in a polymer matrix is expected to overcome the limitations of the polymeric and inorganic membranes. Apart from an overview of the different membrane materials for gas separation, this paper also highlights the development of mixed matrix membrane and challenges in fabrication of mixed matrix membranes.

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16

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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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 especially in high operating pressure due to deficiencies problem. The chemistry and structure of support materials like inorganic membranes were also one of the focus areas when inorganic membranes showed some positive results towards gas separation. However, the materials are somewhat lacking to meet the separation performance requirement. Mixed matrix membrane (MMM) which is comprising polymeric and inorganic membranes presents an interesting approach for enhancing the separation performance. Nevertheless, MMM is yet to be commercialized as the material combinations are still in the research stage. This paper highlights the potential promising areas of research in gas separation by taking into account the material selections and the addition of a third component for conventional MMM.

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17

ASAEDA, MASASHI. "Gas separation using inorganic porous solid membrane." membrane 10, no. 5 (1985): 297–304. http://dx.doi.org/10.5360/membrane.10.297.

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18

Kamio, Eiji, and Hideto Matsuyama. "Gas Separation with a Facilitated Transport Membrane." MEMBRANE 39, no. 3 (2014): 139–46. http://dx.doi.org/10.5360/membrane.39.139.

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19

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 (May 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. These membranes show extraordinary H2S/CH4 selectivity up to 75 with ultrahigh H2S permeability >4000 Barrers, two to three orders of magnitude higher than commercially available glassy polymeric membranes. We demonstrate that the postsynthesis functionalization of hyper-rigid polymers with appropriate functional polar groups provides a unique design strategy for achieving ultraselective and highly permeable membrane materials for practical natural gas sweetening and additional challenging gas pair separations.

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20

Ma, Xiaoli, and Defei Liu. "Zeolitic Imidazolate Framework Membranes for Light Olefin/Paraffin Separation." Crystals 9, no. 1 (December 25, 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 growth, counter-diffusion synthesis, interfacial microfluidic processing, vapor-phase and current-driven synthesis are presented. The gas permeation and separation characteristics and membrane stability are also discussed.

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21

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 (March 27, 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 carbonization process or also known as heat treatment. This paper discusses the variety of precursors and carbonization parameters to produce high quality and performance of carbon molecular sieve membranes. This paper covers the evaluation in advancement and status of high-performance carbon membrane implemented for separating gas, comprising the variety of precursor materials and the fabrication process that involve many different parameters, also analysis of carbon membranes properties in separating various type of gas having high demand in the industries. The issues regarding the current challenges in developing carbon membrane and approaches with the purpose of solving and improving the performance and applications of carbon membrane are included in this paper. Also, the advantages of the carbon membrane compared to other types of membranes are highlighted. Observation and understanding the variables affecting the quality of membrane encourage the optimization of conditions and techniques in producing high-performance membrane.

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22

Jiang, Zhongyi, Liangyin Chu, Xuemei Wu, Zhi Wang, Xiaobin Jiang, Xiaojie Ju, Xuehua Ruan, and Gaohong He. "Membrane-based separation technologies: from polymeric materials to novel process: an outlook from China." Reviews in Chemical Engineering 36, no. 1 (December 18, 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, antifouling membrane for liquid separation, high-performance gas separation membranes and the high-efficiency hybrid membrane separation process design, etc. Additionally, the applications of advanced membranes, relevant devices and process design strategy in chemical engineering related fields are discussed in detail. Finally, perspectives on the future research directions, key challenges and issues in membrane separation are concluded.

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23

Walke, Santosh, Manoj Mandake, and Sahil Thool. "Gas Separation by Polymer Membrane." Journal of Advances in Civil Engineering 4, no. 1 (November 4, 2017): 24–31. http://dx.doi.org/10.18831/djcivil.org/2018011006.

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24

NAKANISHI, SHUNSUKE, and YOSHIHIRO KUSUKI. "Gas Separation with Polyimide Membrane." Sen'i Gakkaishi 51, no. 2 (1995): P55—P61. http://dx.doi.org/10.2115/fiber.51.2_p55.

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25

Lindbråthen, Arne, and May-Britt Hägg. "Membrane separation of chlorine gas." Chemical Engineering and Processing: Process Intensification 48, no. 1 (January 2009): 1–16. http://dx.doi.org/10.1016/j.cep.2008.08.005.

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26

Nakaye, Shoeji, Hiroshi Sugimoto, Naveen K. Gupta, and Yogesh B. Gianchandani. "Thermally enhanced membrane gas separation." European Journal of Mechanics - B/Fluids 49 (January 2015): 36–49. http://dx.doi.org/10.1016/j.euromechflu.2014.07.004.

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27

KUSUKI, Yoshihiro. "Fuel Gas Refining by Gas Separation Membrane." Kobunshi 45, no. 5 (1996): 328–29. http://dx.doi.org/10.1295/kobunshi.45.328.

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28

Dakhchoune, Mostapha. "Two-dimensional Material Membranes for Gas Separation." CHIMIA International Journal for Chemistry 74, no. 4 (April 29, 2020): 263–69. http://dx.doi.org/10.2533/chimia.2020.263.

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Two-dimensional (2D) materials with atom- or few-atoms-thick layers have emerged as building-blocks in the synthesis of the next-generation membrane-based separations. Generally, 2D material-based membranes display high permeation and high selectivity due to their unique structure composed of nanopores and nanochannels with extremely short transport pathways. In this review, the latest advances and ground-breaking research studies on 2D nanosheets for gas separation are highlighted with a focus on the different strategies in synthesizing 2D nanosheets, their assembly into thin membranes and the type of transport mechanism taking place in such membranes.

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29

Nakagawa, Tsutomu. "Recent advance of membranes for gas separation." membrane 14, no. 4 (1989): 232–44. http://dx.doi.org/10.5360/membrane.14.232.

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30

Lin, Y. S. "Inorganic Membranes for Gas Separation and Purification." MEMBRANE 31, no. 3 (2006): 170–73. http://dx.doi.org/10.5360/membrane.31.170.

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31

Miyatake, Kenji. "Gas Separation Membranes for Fuel Cell Applications." MEMBRANE 39, no. 3 (2014): 155–61. http://dx.doi.org/10.5360/membrane.39.155.

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Drioli, Enrico. "Gas Separation Membranes: A Potential Dominant Technology." MEMBRANE 31, no. 2 (2006): 95–97. http://dx.doi.org/10.5360/membrane.31.95.

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33

Morisato, Atsushi. "Membrane Gas Separation Applications for CO2 EOR Natural Gas Processing Plant." MEMBRANE 42, no. 1 (2017): 11–20. http://dx.doi.org/10.5360/membrane.42.11.

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Pulyalina, Alexandra, Galina Polotskaya, Valeriia Rostovtseva, Zbynek Pientka, and Alexander Toikka. "Improved Hydrogen Separation Using Hybrid Membrane Composed of Nanodiamonds and P84 Copolyimide." Polymers 10, no. 8 (July 27, 2018): 828. http://dx.doi.org/10.3390/polym10080828.

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Membrane gas separation is a prospective technology for hydrogen separation from various refinery and petrochemical process streams. To improve efficiency of gas separation, a novel hybrid membrane consisting of nanodiamonds and P84 copolyimide is developed. The particularities of the hybrid membrane structure, physicochemical, and gas transport properties were studied by comparison with that of pure P84 membrane. The gas permeability of H2, CO2, and CH4 through the hybrid membrane is lower than through the unmodified membrane, whereas ideal selectivity in separation of H2/CO2, H2/CH4, and CO2/CH4 gas pairs is higher for the hybrid membrane. Correlation analysis of diffusion and solubility coefficients confirms the reliability of the gas permeability results. The position of P84/ND membrane is among the most selective membranes on the Robeson diagram for H2/CH4 gas pair.

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35

Ueno, Nobuhiko. "Applications of High Silica Zeolite Membrane to Liquid Separation and Gas Separation." MEMBRANE 40, no. 4 (2015): 197–200. http://dx.doi.org/10.5360/membrane.40.197.

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36

Bazhenov, Stepan D., Alexandr V. Bildyukevich, and Alexey V. Volkov. "Gas-Liquid Hollow Fiber Membrane Contactors for Different Applications." Fibers 6, no. 4 (October 10, 2018): 76. http://dx.doi.org/10.3390/fib6040076.

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Gas-liquid membrane contactors that were based on hollow fiber membranes are the example of highly effective hybrid separation processes in the field of membrane technology. Membranes provide a fixed and well-determined interface for gas/liquid mass transfer without dispensing one phase into another while their structure (hollow fiber) offers very large surface area per apparatus volume resulted in the compactness and modularity of separation equipment. In many cases, stated benefits are complemented with high separation selectivity typical for absorption technology. Since hollow fiber membrane contactors are agreed to be one of the most perspective methods for CO2 capture technologies, the major reviews are devoted to research activities within this field. This review is focused on the research works carried out so far on the applications of membrane contactors for other gas-liquid separation tasks, such as water deoxygenation/ozonation, air humidity control, ethylene/ethane separation, etc. A wide range of materials, membranes, and liquid solvents for membrane contactor processes are considered. Special attention is given to current studies on the capture of acid gases (H2S, SO2) from different mixtures. The examples of pilot-scale and semi-industrial implementation of membrane contactors are given.

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37

Farnam, Marjan, Hilmi Mukhtar, and Azmi Mohd Shariff. "A Review on Glassy Polymeric Membranes for Gas Separation." Applied Mechanics and Materials 625 (September 2014): 701–3. http://dx.doi.org/10.4028/www.scientific.net/amm.625.701.

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Polymeric membranes are widely used for gas separation purposes but their performance is restricted by the upper bound trade-off discovered by Robeson in 1991. The polymeric membrane can be glassy, rubbery or a blend of these two polymers. This review paper discusses the properties of glassy polymer membranes and their performance in gas separation. The area of improvement for glassy membrane with development of mixed matrix membrane is also highlighted.

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38

Friess, Karel, Pavel Izák, Magda Kárászová, Mariia Pasichnyk, Marek Lanč, Daria Nikolaeva, Patricia Luis, and Johannes Carolus Jansen. "A Review on Ionic Liquid Gas Separation Membranes." Membranes 11, no. 2 (January 30, 2021): 97. http://dx.doi.org/10.3390/membranes11020097.

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Ionic liquids have attracted the attention of the industry and research community as versatile solvents with unique properties, such as ionic conductivity, low volatility, high solubility of gases and vapors, thermal stability, and the possibility to combine anions and cations to yield an almost endless list of different structures. These features open perspectives for numerous applications, such as the reaction medium for chemical synthesis, electrolytes for batteries, solvent for gas sorption processes, and also membranes for gas separation. In the search for better-performing membrane materials and membranes for gas and vapor separation, ionic liquids have been investigated extensively in the last decade and a half. This review gives a complete overview of the main developments in the field of ionic liquid membranes since their first introduction. It covers all different materials, membrane types, their preparation, pure and mixed gas transport properties, and examples of potential gas separation applications. Special systems will also be discussed, including facilitated transport membranes and mixed matrix membranes. The main strengths and weaknesses of the different membrane types will be discussed, subdividing them into supported ionic liquid membranes (SILMs), poly(ionic liquids) or polymerized ionic liquids (PILs), polymer/ionic liquid blends (physically or chemically cross-linked ‘ion-gels’), and PIL/IL blends. Since membrane processes are advancing as an energy-efficient alternative to traditional separation processes, having shown promising results for complex new separation challenges like carbon capture as well, they may be the key to developing a more sustainable future society. In this light, this review presents the state-of-the-art of ionic liquid membranes, to analyze their potential in the gas separation processes of the future.

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Peinemann, Klaus Viktor. "Membrane Based Gas Separation – past, presence and future." MEMBRANE 31, no. 3 (2006): 165–69. http://dx.doi.org/10.5360/membrane.31.165.

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Jusoh, Norwahyu, Lau Kok Keong, and Azmi Mohd Shariff. "Preparation and Characterization of Polysulfone Membrane for Gas Separation." Advanced Materials Research 917 (June 2014): 307–16. http://dx.doi.org/10.4028/www.scientific.net/amr.917.307.

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Symmetric and asymmetric polysulfone membranes were fabricated using different of solvents; N-methyl-pyrrolidone (NMP), Tetrahydrofuran (THF) and Dimethylacetamide (DMAC) at different polymer concentration (15 and 20%) to study the influence of varying type of solvents and polymer concentration in membrane fabrication. The membranes were characterized using Field Emission Scanning Electron Microscopy (FESEM), Thermogravimetric Analyzer (TGA), Universal Testing Machine (UTM) and Fourier Transform Infra-Red (FTIR).The results disclosed that the symmetric, higher polymer concentration membrane contributed to better thermal and mechanical stabilities. PSF/THF membrane showed good mechanical strength while PSF/DMAC membrane illustrated great thermal stability. 20% of polymer concentration and PSF/THF membrane led to the thicker skin layer and dense structure formation.

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Musselman, I. H., L. Washmon, D. Varadarajan, B. J. Tielsch, and J. E. Fulghum. "Poly(3-alkylthiophene) membranes for gas separation." Proceedings, annual meeting, Electron Microscopy Society of America 54 (August 11, 1996): 862–63. http://dx.doi.org/10.1017/s0424820100166774.

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The separation of gases is a commercial process conducted primarily via cryogenic distillation. An alternative method involves the use of solvent cast polymer membranes. Unlike distillation, membrane processes are energy efficient, easy to scale-up, and require only electrical energy in their operation. Current membrane separation applications include oxygen or nitrogen enrichment of air, the separation of carbon dioxide from natural gases, and the recovery of hydrogen from refinery and purge streams. In our laboratory, gas separation membranes are being developed based on conducting, soluble and processable polymers such as poly(3-n-alkylthiophene)s. The chemistry of these membranes is being altered by changing the R group (e.g. octyl, dodecyl), the oxidation state, and by incorporating zeolites and molecular sieves to facilitate gas transport. An important aspect of this project concerns establishing the relationship(s) between the structure of poly(3-alkylthiophene) membranes and their bulk properties, specifically permeabilities and selectivities for various gases. It is anticipated that this understanding will help to elucidate the mechanism by which gas separation occurs in these membranes.

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Alen, Saif Khan, SungWoo Nam, and Seyed A. Dastgheib. "Recent Advances in Graphene Oxide Membranes for Gas Separation Applications." International Journal of Molecular Sciences 20, no. 22 (November 9, 2019): 5609. http://dx.doi.org/10.3390/ijms20225609.

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Graphene oxide (GO) can dramatically enhance the gas separation performance of membrane technologies beyond the limits of conventional membrane materials in terms of both permeability and selectivity. Graphene oxide membranes can allow extremely high fluxes because of their ultimate thinness and unique layered structure. In addition, their high selectivity is due to the molecular sieving or diffusion effect resulting from their narrow pore size distribution or their unique surface chemistry. In the first part of this review, we briefly discuss different mechanisms of gas transport through membranes, with an emphasis on the proposed mechanisms for gas separation by GO membranes. In the second part, we review the methods for GO membrane preparation and characterization. In the third part, we provide a critical review of the literature on the application of different types of GO membranes for CO2, H2, and hydrocarbon separation. Finally, we provide recommendations for the development of high-performance GO membranes for gas separation applications.

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Han, Yang, Yutong Yang, and W. S. Winston Ho. "Recent Progress in the Engineering of Polymeric Membranes for CO2 Capture from Flue Gas." Membranes 10, no. 11 (November 23, 2020): 365. http://dx.doi.org/10.3390/membranes10110365.

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CO2 capture from coal- or natural gas-derived flue gas has been widely considered as the next opportunity for the large-scale deployment of gas separation membranes. Despite the tremendous progress made in the synthesis of polymeric membranes with high CO2/N2 separation performance, only a few membrane technologies were advanced to the bench-scale study or above from a highly idealized laboratory setting. Therefore, the recent progress in polymeric membranes is reviewed in the perspectives of capture system energetics, process synthesis, membrane scale-up, modular fabrication, and field tests. These engineering considerations can provide a holistic approach to better guide membrane research and accelerate the commercialization of gas separation membranes for post-combustion carbon capture.

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Haraya, Kenji. "Practical Approaches for Application of Gas Separation Membranes." MEMBRANE 38, no. 4 (2013): 152–58. http://dx.doi.org/10.5360/membrane.38.152.

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Scholes, Colin A., Geoff W. Stevens, and Sandra E. Kentish. "Membrane gas separation applications in natural gas processing." Fuel 96 (June 2012): 15–28. http://dx.doi.org/10.1016/j.fuel.2011.12.074.

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JunIchiro, Tsubaki. "Current Inorganic Membrane Technology for Gas Separation and it's Application to Carbone Dioxide Separation." membrane 19, no. 3 (1994): 146–54. http://dx.doi.org/10.5360/membrane.19.146.

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Sanip, S. M., A. F. Ismail, P. S. Goh, M. N. A. Norrdin, T. Soga, Masaki Tanemura, and H. Yasuhiko. "Carbon Nanotubes Based Mixed Matrix Membrane for Gas Separation." Advanced Materials Research 364 (October 2011): 272–77. http://dx.doi.org/10.4028/www.scientific.net/amr.364.272.

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Mixed matrix membranes (MMM) combine useful molecular sieving properties of inorganic fillers with the desirable mechanical and processing properties of polymers. The current trend in polymeric membranes is the incorporation of filler-like nanoparticles to improve the separation performance. Most MMM have shown higher gas permeabilities and improved gas selectivities compared to the corresponding pure polymer membranes. Carbon nanotubes based mixed matrix membrane was prepared by the solution casting method in which the functionalized multiwalled carbon nanotubes (f-MWNTs) were embedded into the polyimide membrane and the resulting membranes were characterized. The effect of nominal MWNTs content between 0.5 and 1.0 wt% on the gas separation properties were looked into. The as-prepared membranes were characterized for their morphology using field emission scanning electron microscopy (FESEM) and Transmission Electron Microscopy (TEM). The morphologies of the MMM also indicated that at 0.7 % loading of f-MWNTs, the structures of the MMM showed uniform finger-like structures which have facilitated the fast gas transport through the polymer matrix. It may also be concluded that addition of open ended and shortened MWNTs to the polymer matrix can improve its permeability by increasing diffusivity through the MWNTs smooth cavity.

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Dubyaga, V. P., V. M. Sidorenko, S. I. Smirnov, and A. V. Tarasov. "Investigation of Membrane Gas Separation Characteristics." Key Engineering Materials 61-62 (January 1992): 541–48. http://dx.doi.org/10.4028/www.scientific.net/kem.61-62.541.

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DAGANI, RON. "Carbon membrane eyed for gas separation." Chemical & Engineering News 77, no. 38 (September 20, 1999): 11. http://dx.doi.org/10.1021/cen-v077n038.p011.

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Jang, Eue-Soon, Jae-Joon Chang, Jihye Gwak, André Ayral, Vincent Rouessac, Louis Cot, Seong-Ju Hwang, and Jin-Ho Choy. "Asymmetric High-TcSuperconducting Gas Separation Membrane." Chemistry of Materials 19, no. 15 (July 2007): 3840–44. http://dx.doi.org/10.1021/cm070656s.

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