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Hollow Fiber Membranes

Hollow Fiber Membranes
  • Author : Tai-Shung Chung,Yingnan Feng
  • Publisher :Unknown
  • Release Date :2021-03-19
  • Total pages :546
  • ISBN : 9780128218914
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Summary : Hollow Fiber Membranes: Fabrication and Applications focuses on the fabrication and applications of hollow fiber membranes. The book amply discusses the fundamental theories and practical applications of hollow fiber membranes, covering membrane formation mechanisms, hollow fiber spinning techniques, and spinneret design and module fabrication. In addition, novel membrane processes and applications of hollow fiber membranes are introduced. Elaborates membrane formation mechanisms Illustrates novel hollow fiber fabrication techniques and processes Specifies practical spinneret design and module fabrication Reviews hollow fiber membranes spun from specialty polymers Discusses state-of-the-art hollow fiber membrane applications

Hollow Fiber Membranes

Hollow Fiber Membranes
  • Author : Tai-Shung Chung,Yingnan Feng
  • Publisher :Unknown
  • Release Date :2021-04-02
  • Total pages :546
  • ISBN : 9780128218761
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Summary : Hollow Fiber Membranes: Fabrication and Applications focuses on the fabrication and applications of hollow fiber membranes. It amply discusses the fundamental theories and practical applications of hollow fiber membranes. The book covers topics regarding hollow fiber membranes comprehensively including membrane formation mechanisms, hollow fiber spinning techniques, spinneret design and module fabrication. Novel membrane processes and applications of hollow fiber membranes are also introduced to the audience

Hollow Fiber Membranes for Dialysis

Hollow Fiber Membranes for Dialysis
  • Author : M. Miyagi,C. Kawamura,M. Kanaizumi,Toyo Boseki K.K.
  • Publisher :Unknown
  • Release Date :1983
  • Total pages :10
  • ISBN : LCCN:ntc93014572
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Summary :

Hollow Fiber Membrane Contactors

Hollow Fiber Membrane Contactors
  • Author : Anil Kumar Pabby
  • Publisher :Unknown
  • Release Date :2020
  • Total pages :306
  • ISBN : 0429398883
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Summary : This book on hollow fiber contractors presents an up-to-date compilation of the latest developments and milestones in this membrane technology. Hollow Fiber Membrane Contactors: Module Fabrication, Design and Operation, and Potential Applicationsprovides a comprehensive discussion of hollow fiber membrane applications (including a few case studies) in biotechnology, chemical, food, and nuclear engineering. The chapters in this book have been classified using the following, based on different ways of contacting fluids with each other: Gas-liquid contacting; Liquid-liquid contacting; Supported liquid membrane; Supported gas membrane; Fluid-fluid contacting. Other features include: Discusses using non-dispersive solvent extraction, hollow fiber strip dispersion, hollow fiber supported liquid membranes and role of process intensification in integrated use of these processes Provides technical and economic perspectives with several case studies related to specific scenarios Demonstrates module fabrication, design, operation and maintenance of hollow fiber contactors for different applications and performance Presents discussion on newer concepts like membrane emulsification, membrane nanoprecipitation, membrane crystallization and membrane condenser Special focus on emerging areas such as the use of hollow fiber contactor in back end of nuclear fuel cycle, membrane distillation, dehumidification of air and gas absorption and stripping Discusses theoretical analysis including computational modeling of different hollow fiber membrane processes, and presents emphasis on newly developed area of hollow fiber membrane based analytical techniques Presents discussion on upcoming area dealing with hollow fiber contactors-based technology in fermentation and enzymatic transformation and in chiral separations This book is equally suited for newcomers to the field, as well as for engineers and scientists that have basic knowledge in this field but are interested in obtaining more information about specific future applications.

Hollow-Fiber Membranes

Hollow-Fiber Membranes
  • Author : Cabass
  • Publisher :Unknown
  • Release Date :1997-05-01
  • Total pages :229
  • ISBN : 0471866075
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Summary :

Preparation of Hollow Fiber Membranes

Preparation of Hollow Fiber Membranes
  • Author : H. Komada,H. Nakamura,A. Kojima,K. Ishii,Daicel Kagaku Kogyo K.K.
  • Publisher :Unknown
  • Release Date :1989
  • Total pages :7
  • ISBN : LCCN:ntc89023599
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Summary :

Hollow Fiber Membrane Contactors

Hollow Fiber Membrane Contactors
  • Author : Anil K. Pabby,S. Ranil Wickramasinghe,Kamalesh K. Sirkar,Ana-Maria Sastre
  • Publisher :Unknown
  • Release Date :2020-11-23
  • Total pages :306
  • ISBN : 9780429677458
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Summary : This book on hollow fiber contractors presents an up-to-date compilation of the latest developments and milestones in this membrane technology. Hollow Fiber Membrane Contactors: Module Fabrication, Design and Operation, and Potential Applications provides a comprehensive discussion of hollow fiber membrane applications (including a few case studies) in biotechnology, chemical, food, and nuclear engineering. The chapters in this book have been classified using the following, based on different ways of contacting fluids with each other: Gas-liquid contacting; Liquid-liquid contacting; Supported liquid membrane; Supported gas membrane; Fluid-fluid contacting. Other features include: Discusses using non-dispersive solvent extraction, hollow fiber strip dispersion, hollow fiber supported liquid membranes and role of process intensification in integrated use of these processes Provides technical and economic perspectives with several case studies related to specific scenarios Demonstrates module fabrication, design, operation and maintenance of hollow fiber contactors for different applications and performance Presents discussion on newer concepts like membrane emulsification, membrane nanoprecipitation, membrane crystallization and membrane condenser Special focus on emerging areas such as the use of hollow fiber contactor in back end of nuclear fuel cycle, membrane distillation, dehumidification of air and gas absorption and stripping Discusses theoretical analysis including computational modeling of different hollow fiber membrane processes, and presents emphasis on newly developed area of hollow fiber membrane based analytical techniques Presents discussion on upcoming area dealing with hollow fiber contactors-based technology in fermentation and enzymatic transformation and in chiral separations This book is equally suited for newcomers to the field, as well as for engineers and scientists that have basic knowledge in this field but are interested in obtaining more information about specific future applications.

Membrane Technology for Osmotic Power Generation by Pressure Retarded Osmosis

Membrane Technology for Osmotic Power Generation by Pressure Retarded Osmosis
  • Author : Tai-Shung Chung,Chun Feng Wan
  • Publisher :Unknown
  • Release Date :2020-02-24
  • Total pages :324
  • ISBN : 9781000027839
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Summary : Osmotic energy can be effectively harvested through pressure retarded osmosis (PRO) which is the most widely investigated technology due to its greater efficiency and higher power density output and effective membranes are the heart of the PRO technology. This book will cover a broad range of topics, including PRO membranes, fouling, module fabrication, process design, process operation and maintenance. It summarizes the progress in PRO researches in the last decade, and points out the directions for future R&D and commercialization of PRO. It will be of great interest to membrane researcher, company and operators to understand and get insights into the state-of-the-art PRO technologies.

Membrane Contactors: Fundamentals, Applications and Potentialities

Membrane Contactors: Fundamentals, Applications and Potentialities
  • Author : Enrico Drioli,A. Criscuoli,E. Curcio
  • Publisher :Unknown
  • Release Date :2011-08-30
  • Total pages :516
  • ISBN : 0080457010
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Summary : Membrane Contactors: Fundamentals, Applications and Potentialities, Volume 11 covers new operations that could be efficiently used to improve the performance of a variety of industrial production cycles in applications ranging from biotechnology to agrofood. This book focuses on the basic "principles of work": required membrane materials and properties; major operating parameters; the importance of module configuration and design and; the performance of membrane contactors in specific processes. The authors’ dynamic approach to this subject makes Membrane Contactors: Fundamentals, Applications and Potentialities, Volume 11 the most comprehensive book currently available on all aspects related to the 'membrane contactor world. * Describes new unit operations in process engineering * Covers a wide variety of industrial applications, from biotechnology to agrofood * Applicable to process intensification and sustainable growth strategies

Hollow Fiber Membranes for New Biotechnology

Hollow Fiber Membranes for New Biotechnology
  • Author : E. Murakami
  • Publisher :Unknown
  • Release Date :1986
  • Total pages :17
  • ISBN : LCCN:ntc92016215
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Summary :

Hollow-fiber Membranes for Individual Soldier Water Purification

Hollow-fiber Membranes for Individual Soldier Water Purification
  • Author : Charles D. Moody,Separation Systems Technology, Inc,United States. Bureau of Reclamation,United States. Army Tank-Automotive Command,U.S. Army Tank-Automotive Research, Development, and Engineering Center
  • Publisher :Unknown
  • Release Date :2007
  • Total pages :146
  • ISBN : OCLC:785932332
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Summary :

Carbon Molecular Sieve Hollow Fiber Membranes for Olefin/paraffin Separations

Carbon Molecular Sieve Hollow Fiber Membranes for Olefin/paraffin Separations
  • Author : Liren Xu
  • Publisher :Unknown
  • Release Date :2013
  • Total pages :229
  • ISBN : OCLC:880958641
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Summary : Olefin/paraffin separation is a large potential market for membrane applications. Carbon molecular sieve membranes (CMS) are promising for this application due to the intrinsically high separation performance and the viability for practical scale-up. Intrinsically high separation performance of CMS membranes for olefin/paraffin separations was demonstrated. The translation of intrinsic CMS transport properties into the hollow fiber configuration is considered in detail. Substructure collapse of asymmetric hollow fibers was found during Matrimid® CMS hollow fiber formation. To overcome the permeance loss due to the increased separation layer thickness, 6FDA-DAM and 6FDA/BPDA-DAM polyimides with higher rigidity were employed as alternative precursors, and significant improvement has been achieved. Besides the macroscopic morphology control of asymmetric hollow fibers, the micro-structure was tuned by optimizing pyrolysis temperature protocol and pyrolysis atmosphere. In addition, unexpected physical aging was observed in CMS membranes, which is analogous to the aging phenomenon in glassy polymers. For performance evaluation, multiple "proof-of-concept" tests validated the viability of CMS membranes under realistic conditions. The scope of this work was expanded from binary ethylene/ethane and propylene/propane separations for the debottlenecking purpose to mixed carbon number hydrocarbon processing. CMS membranes were found to be olefins-selective over corresponding paraffins; moreover, CMS membranes are able to effectively fractionate the complex cracked gas stream in a preferable way. Reconfiguration of the hydrocarbon processing in ethylene plants is possible based on the unique CMS membranes.

Preparation of Hollow Fiber Membranes for Gas Separation

Preparation of Hollow Fiber Membranes for Gas Separation
  • Author : Shu-Guang Li
  • Publisher :Unknown
  • Release Date :1994
  • Total pages :229
  • ISBN : OCLC:841713412
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Summary :

Membrane-Based Salinity Gradient Processes for Water Treatment and Power Generation

Membrane-Based Salinity Gradient Processes for Water Treatment and Power Generation
  • Author : Sarper Sarp,Nidal Hilal
  • Publisher :Unknown
  • Release Date :2018-07-25
  • Total pages :366
  • ISBN : 9780444639622
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Summary : Membrane-Based Salinity Gradient Processes for Water Treatment and Power Generation focuses on the various types of membrane- based salinity gradient processes that can be applied for desalination. Topics cover salinity gradient processes for desalination, such as Forward Osmosis (FO) and Pressure Retarded Osmosis (PRO), with chapters selected exclusively from a number of world-leading experts in various disciplines and from different continents. Sections include discussions on the theoretical and fundamental approaches to salinity gradient processes, various types of membrane materials and development, i.e., flat sheet and hollow fiber, various salinity water sources for an economically feasible process, and large-scale applications. Finally, the book focuses on economically feasible process optimization when both operational and capital costs are considered. Features specific details on salinity gradient techniques for various desalination applications of industrial and academic interest Contains unique discussions on membrane development and process optimization that normally only appear briefly in research articles Includes examples of internationally best practices for the evaluation of several system parameters, including thermodynamic optimization, high power density membrane development, and more Discusses large-scale applications and provides examples of such implementations, such as Statkraft, Japanese Megaton, and Korean GMVP

Membrane Bioreactors for Wastewater Treatment

Membrane Bioreactors for Wastewater Treatment
  • Author : Thomas Stephenson,K. Brindle,Simon Judd,Bruce Jefferson
  • Publisher :Unknown
  • Release Date :2000-05-31
  • Total pages :150
  • ISBN : 9781900222075
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Summary : The book covers the subject of membrane bioreactors (MBR) for wastewater treatment, dealing with municipal as well as industrial wastewaters. The book details the 3 types of MBR available and discusses the science behind the technology, their design features, operation, applications, advantages, limitations, performance, current research activities and cost. As the demand for wastewater treatment, recycling and re-use technologies increases, it is envisaged that the membrane separation bioreactor will corner the market. Contents Membrane Fundamentals Biological Fundamentals Biomass Separation Membrane Bioreactors Membrane Aeration and Extractive Bioreactors Commercial Membrane Bioreactor Systems Membrane Bioreactor Applications Case Studies

Diffusive Permeability of Hollow Fiber Membranes

Diffusive Permeability of Hollow Fiber Membranes
  • Author : Steven Minh Dinh
  • Publisher :Unknown
  • Release Date :1978
  • Total pages :364
  • ISBN : CORNELL:31924004762245
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Summary :

Separation of Volatile Organic Compounds from Nitrogen by Hollow Fiber Composite Membranes [electronic Resource]

Separation of Volatile Organic Compounds from Nitrogen by Hollow Fiber Composite Membranes [electronic Resource]
  • Author : Liu, Yujing
  • Publisher :Unknown
  • Release Date :2003
  • Total pages :229
  • ISBN : OCLC:71490420
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Summary : Many industrial processes handling organic solvents produce volatile organic compounds (VOCs). These VOCs not only cause environmental pollution, but also represent an economic loss. VOC removal and recovery have become a big issue that needs to be addressed. Traditional techniques for VOCs removal include carbon adsorption, condensation, and absorption, and none is efficient enough to meet every need. Membrane separation has emerged as an excellent alternative or complementary technology for VOC separation. Separation of VOCs from nitrogen by composite hollow fiber membranes is studied in this thesis. Microporous hollow fiber membranes were spun from polyvinylidene fluoride (PVDF) using the phase inversion method, and the hollow fibers were coated with a thin layer of poly(ether block amide) (PEBA), thereby forming composite membranes. PVDF was chosen as the substrate material because of its excellent thermal and chemical stabilities and good mechanical strength, and PEBA was selected as the active separating layer because of its good permselectivity and film forming properties. In PEBA polymer, the hard polyamide blocks provide high mechanical strength, and the soft polyether blocks provide flexibility and elasticity. This study is focused on the preparation and characterization of PEBA/PVDF composite hollow fiber membranes. The membranes were tested for the removal of representative VOCs including hexane, heptane and cyclohexane, which are the main components of gasoline, and dimethyl carbonate (DMC), ethanol, methanol, and methyl t-butyl ether (MTBE) that are the oxygenates and octane number enhancers of gasoline. The separation of gasoline vapor from nitrogen was also investigated. It was found that the PEBA/PVDF composite hollow fiber membranes are effective for the separation of hydrocarbon vapors from nitrogen. The effects of hollow fiber membrane preparation conditions on the membrane performance were studied, and the separation performance of the composite hollow fiber membranes at various operating conditions (e.g. feed concentration, operating temperature) was evaluated.

Composite Hollow Fiber Membranes for Ion Separation and Removal

Composite Hollow Fiber Membranes for Ion Separation and Removal
  • Author : Tao He
  • Publisher :Unknown
  • Release Date :2001
  • Total pages :144
  • ISBN : 9036516242
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Summary :

Optimization of Asymmetric Hollow Fiber Membranes for Natural Gas Separation

Optimization of Asymmetric Hollow Fiber Membranes for Natural Gas Separation
  • Author : Canghai Ma
  • Publisher :Unknown
  • Release Date :2011
  • Total pages :229
  • ISBN : OCLC:810902748
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Summary : Compared to the conventional amine adsorption process to separate CO2 from natural gas, the membrane separation technology has exhibited advantages in easy operation and lower capital cost. However, the high CO2 partial pressure in natural gas can plasticize the membranes, which can lead to the loss of CH4 and low CO2/CH4 separation efficiency. Crosslinking of polymer membranes have been proven effective to increase the CO2 induced plasticization resistance by controlling the degree of swelling and segmental chain mobility in the polymer. This thesis focuses on extending the success of crosslinking to more productive asymmetric hollow fibers. In this work, the productivity of asymmetric hollow fibers was optimized by reducing the effective selective skin layer thickness. Thermal crosslinking and catalyst assisted crosslinking were performed on the defect-free thin skin hollow fibers to stabilize the fibers against plasticization. The natural gas separation performance of hollow fibers was evaluated by feeding CO2/CH4 gas mixture with high CO2 content and pressure.

Highly Productive Ester Crosslinkable Composite Hollow Fiber Membranes for Aggressive Natural Gas Separations

Highly Productive Ester Crosslinkable Composite Hollow Fiber Membranes for Aggressive Natural Gas Separations
  • Author : Canghai Ma
  • Publisher :Unknown
  • Release Date :2012
  • Total pages :229
  • ISBN : OCLC:880942408
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Summary : Despite intrinsically high separation performance, conventional polymeric membranes suffer from CO2 induced plasticization, which reduces CO2/CH4 separation efficiency significantly. Covalent ester-crosslinking can improve the plasticization resistance by controlling the segmental chain mobility in the polymer; however, only relatively thick selective skin layers and lower separation productivity have been reported to date. On the other hand, the high cost of crosslinkable polymers makes the approach challenging, especially for large-scale gas separations which require large membrane areas with high feed pressures. Dual-layer hollow fiber spinning can be used to reduce the cost of membrane production by integrating a low-cost supporting core polymer with the expensive crosslinkable sheath polymer. However, the complexity of interfacial interaction between the sheath/core layers and subsequent crosslinking required can delaminate the sheath/core layers and collapse the core layer polymer. This can reduce mechanical strength and the separation productivity significantly. This work aimed to develop thin-skinned high-performing ester-crosslinked hollow fiber membranes with improved CO2 plasticization resistance. The skin layer thickness of hollow fibers was first optimized by simultaneous optimization of the polymer dope and spinning process variables. Moreover, this study also addresses the solutions of challenging in transitioning the monolithic hollow fiber to composite hollow fiber format. The ester-crosslinked hollow fibers were subjected to high feed pressures and high-level contaminants to probe their CO2 plasticization and hydrocarbon antiplasticization resistance, respectively. The resultant ester-crosslinked monolithic hollow fibers show significantly reduced skin layer thickness and improved separation productivity under extremely challenging operation conditions. They also demonstrate strong stability under high feed pressures and reversibility after contaminant exposure. Moreover, this study presents a newly discovered core layer material, Torlon®, which demonstrates excellent compatibility with the crosslinkable polymer and superior thermal stability during crosslinking without sheath/core layer delamination or collapse. The characterization under aggressive feed conditions clearly suggests that ester-crosslinked composite hollow fibers can achieve high separation performance and reduce membrane cost simultaneously. This provides a significant advance in state of the art for natural gas separations under realistic operation environments.

Hollow Fiber Membranes and Methods for Forming Same

Hollow Fiber Membranes and Methods for Forming Same
  • Author : Anonim
  • Publisher :Unknown
  • Release Date :2016
  • Total pages :229
  • ISBN : OCLC:946822672
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Summary : The invention provides improved hollow fiber membranes having at least two layers, and methods for forming the same. The methods include co-extruding a first composition, a second composition, and a third composition to form a dual layer hollow fiber membrane. The first composition includes a glassy polymer; the second composition includes a polysiloxane; and the third composition includes a bore fluid. The dual layer hollow fiber membranes include a first layer and a second layer, the first layer being a porous layer which includes the glassy polymer of the first composition, and the second layer being a polysiloxane layer which includes the polysiloxane of the second composition.