Author: Renate Marina de Vos
Publisher:
ISBN: 9789036511414
Category :
Languages : en
Pages : 134

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Author: N.K. Kanellopoulos
Publisher: Elsevier
ISBN: 0080540325
Category : Technology & Engineering
Languages : en
Pages : 525

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Book Description
This book is dedicated to the rapidly growing field of microporous ceramic membranes with separating layers of pore diameter less than 2nm. The chapters of this book bring forward a wide range of issues, namely fundamentals of complex sorption and transport processes in micropore structures, highly innovative methods of preparation of microporous membranes and examples of their possible commercial applications. This book presents insights by distinguished investigators, who have contributed significantly to the advance of research efforts in the diverse topics described herein. Recently, significant progress has been made with respect to the development of novel microporous asymmetric membranes, mainly involving modification by means of deposition of additional material within the pores of the substrates. Most state-of-the-art technologies aiming in the development of microporous ceramic membrane are presented in the third section of the book. These include several material deposition methods and techniques on macroporous or mesoporous supports and substrates from the liquid or vapour phase, namely those involving sol-gel, zeolite and chemical vapour deposition techniques. In addition to the above-mentioned methods, the classical technique of carbonizing polymeric deposits along with one of the novel techniques of plasma-treating, organically deposited Langmuir-Blodgett films, are also presented. Nanophase mixed ionic-electron membranes for enhanced oxygen transport are described, which pose a strong candidacy for a number of significant commercial applications.

Author: Angelo Basile
Publisher: Elsevier
ISBN: 0444638679
Category : Technology & Engineering
Languages : en
Pages : 420

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Book Description
Current Trends and Future Developments on (Bio-) Membranes: Silica Membranes: Preparation, Modelling, Application, and Commercialization discusses one of the most promising inorganic membranes, namely silica membranes, and their different applications. In the field of membrane separation technology, silica membranes play a key role in the future of the chemical industry as one of the most promising alternatives for separations at high temperatures and aggressive media. This book details the latest research findings, along with the potential industrial applications of an area that has seen growing research activity on various type of membranes due to the necessity of gas separation and water treatment processes. Many industrial companies and academic centers will find immense interest in learning about the best strategies for carrying out these processes. - Reviews available methods for the characterization, preparation, and applications of silica membranes - Includes new and emerging modeling methods - Discusses silica membrane applications for hydrogen production and applications in CO2 capturing, water treatment, and pervaporation

Author: Neha Bighane
Publisher:
ISBN:
Category : Membrane separation
Languages : en
Pages :

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Book Description
Membrane materials for gas separations span a wide range including polymers, metals, ceramics and composites. Our aim is to create economical hydrothermally stable membranes that can provide high H2-CO2 separation at a temperature of 300 degree Celsius, for application in the water-gas shift reactor process. The present work describes the development of novel silica and silica-titania membranes from the controlled oxidative thermolysis of polydimethylsiloxane. The scope of this thesis is fabrication of membranes, material characterization and preliminary gas permeation tests (35-80 degree Celsius) on PDMS derived silica membrane films. The developed membranes can withstand up to 350 degree C in air. High permeabilties of small gas penetrants like He, H2 and CO2 have been observed and fairly high separation factors of O2/N2=3, H2/N2= 14 and H2/CH4=11 have been obtained. As the temperature of operation increases, the permeability of hydrogen increases and the separation factor of H2 from CO2 increases. The silica membranes exhibit gas separation factors higher than the respective Knudsen values. Additionally, design and construction of a new high temperature gas permeation testing system is described, which will cater to gas permeation tests at temperatures up to 300 degree Celsius for future work. The thesis also includes a detailed plan for future studies on this topic of research.

Author: George van der Donk
Publisher: Forschungszentrum Jülich
ISBN: 3893365257
Category :
Languages : en
Pages : 137

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Author: Pei Sean Goh
Publisher: Elsevier
ISBN: 0128194073
Category : Technology & Engineering
Languages : en
Pages : 312

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Book Description
The development of a new class of nanocomposite membranes has served as one of the most prominent strategies to address the intrinsic limitations of conventionally used polymeric and inorganic membranes. Nanocomposite membranes consist of nanosized inorganic nanomaterials that are incorporated into the structure of continuous polymer matrices. Owing to the exceptional properties exhibited by the nanomaterials, the resultant nanocomposite membranes demonstrate higher selectivity and permeability that surpass the Robeson upper boundary limit. Nanocomposite Membranes for Gas Separation provides a comprehensive review of the advances made in the development and application of gas separation nanocomposite membranes. In particular, the book covers the focuses on the fabrication, modification, characterization and applications of nanocomposite membranes for gas separation. It is an important reference source both for materials scientists, environmental engineers and chemical engineers who are looking to understand how nanocomposite membranes are being used to create better techniques for gas separation. - Provides detailed insights in the fabrication, modification, characterization and applications of nanocomposite membranes for gas separation - Shows how nanotechnology is being used to address current limitations of the development of polymeric and inorganic membranes for gas separation, including low separation performance in terms of permeability and selectivity - Explores the potential of nanocomposite membranes to help create more effective gas separation techniques

Author: Kang Li
Publisher: John Wiley & Sons
ISBN: 9780470319468
Category : Technology & Engineering
Languages : en
Pages : 316

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Book Description
Ceramic Membranes for Reaction and Separation is the first single-authored guide to the developing area of ceramic membranes. Starting by documenting established procedures of ceramic membrane preparation and characterization, this title then focuses on gas separation. The final chapter covers ceramic membrane reactors;- as distributors and separators, and general engineering considerations. Chapters include key examples to illustrate membrane synthesis, characterisation and applications in industry. Theoretical principles, advantages and disadvantages of using ceramic membranes under the various conditions are discussed where applicable.

Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 69

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Book Description
This project is a continuation of a previous DOE-UCR project (DE-FG22- 89PC89765) dealing with the preparation of silica membranes highly permselective to hydrogen at elevated temperatures, suitable for hydrogen separation from coal gas. The membranes prepared in the previous project had very high selectivity but relatively low permeance. Therefore, the general objectives of this project were to improve the permeance of these membranes and to obtain fundamental information about membrane structure and properties. The specific objectives were: (1) to explore new silylation reagents and reaction conditions with the purpose of reducing the thickness and increasing the permeance of silica membranes prepared by chemical vapor deposition (CVD), (2) to characterize the membrane structure, (3) to delineate mechanism and kinetics of deposition, (4) to measure the permeability of silica layers at different extents of deposition, and (5) to mathematically model the relationship between structure and deposition kinetics.

Author: S. Ted Oyama
Publisher: Elsevier
ISBN: 0444537287
Category : Science
Languages : en
Pages : 395

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Book Description
Inorganic, Polymeric and Composite Membranes: Structure-Function and Other Correlations covers the latest technical advances in topics such as structure-function relationships for polymeric, inorganic, and composite membranes. Leading scientists provide in depth reviews and disseminate cutting-edge research results on correlations but also discuss new materials, characterization, modelling, computational simulation, process concepts, and spectroscopy. Unified by fundamental general correlations theme Many graphical examples Covers all major membrane types

Author: Norman N Li
Publisher: John Wiley & Sons
ISBN: 1118211545
Category : Technology & Engineering
Languages : en
Pages : 1105

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Book Description
Advanced membranes-from fundamentals and membrane chemistry to manufacturing and applications A hands-on reference for practicing professionals, Advanced Membrane Technology and Applications covers the fundamental principles and theories of separation and purification by membranes, the important membrane processes and systems, and major industrial applications. It goes far beyond the basics to address the formulation and industrial manufacture of membranes and applications. This practical guide: Includes coverage of all the major types of membranes: ultrafiltration; microfiltration; nanofiltration; reverse osmosis (including the recent high-flux and low-pressure membranes and anti-fouling membranes); membranes for gas separations; and membranes for fuel cell uses Addresses six major topics: membranes and applications in water and wastewater; membranes for biotechnology and chemical/biomedical applications; gas separations; membrane contractors and reactors; environmental and energy applications; and membrane materials and characterization Includes discussions of important strategic issues and the future of membrane technology With chapters contributed by leading experts in their specific areas and a practical focus, this is the definitive reference for professionals in industrial manufacturing and separations and research and development; practitioners in the manufacture and applications of membranes; scientists in water treatment, pharmaceutical, food, and fuel cell processing industries; process engineers; and others. It is also an excellent resource for researchers in industry and academia and graduate students taking courses in separations and membranes and related fields.