Reactive Separations Via a Hydrothermally Stable Hydrogen Selective Membrane. Final Report PDF Download
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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
In this SBIR Phase I program, we have successfully completed the fabrication of SiC-based hydrogen selective membranes suitable for use as a membrane reactor for steam-methane reforming applications. Hydrothermal stability was performed for selected membrane to demonstrate their stability for appx. 50 hours under the proposed reforming condition. In addition, several mechanistic study was conducted to elucidate the SiC membrane formation mechanism. This understanding will facilitate membrane optimization work to be proposed for the Phase II study. The reaction study was postponed to the Phase II study.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
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Book Description
In this SBIR Phase I program, we have successfully completed the fabrication of SiC-based hydrogen selective membranes suitable for use as a membrane reactor for steam-methane reforming applications. Hydrothermal stability was performed for selected membrane to demonstrate their stability for appx. 50 hours under the proposed reforming condition. In addition, several mechanistic study was conducted to elucidate the SiC membrane formation mechanism. This understanding will facilitate membrane optimization work to be proposed for the Phase II study. The reaction study was postponed to the Phase II study.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 98
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Book Description
The general objective of this project was to develop hydrogen permselective membranes for hydrogen production from coal gas. The project consisted of the following tasks: (i) membrane preparation and characterization, (ii) membrane stability testing, and (iii) analysis and economic evaluation of a membrane-assisted ammonia from coal process. Several oxides (SiO2, TiO2, Al2O3, B2O3) in dense (or nonporous) form were identified to be permselective to hydrogen at elevated temperatures. To obtain reasonable permeance it is necessary that the membrane consists of a thin selective layer of the dense oxide supported on or within the pores of a porous support tube (or plate). Early in the project we chose porous Vycor tubes (5mm ID, 7 mm OD, 40 Å mean pore diameter) supplied by Corning Inc. as the membrane support. To form the permselective layer (SiO2, TiO2, Al2O3, B2O3) we employed chemical vapor deposition using the reaction of the chloride (SiCl4, etc.) vapor and water vapor at high temperatures. Deposition of the selective layer was carried out in a simple concentric tube reactor comprising the porous support tube surrounded by a wider concentric quartz tube and placed in an electrically heated split tube furnace. In one deposition geometry (the opposing reactants or two-sided geometry) the chloride vapor in nitrogen carrier was passed through the inner tube while the water vapor also in nitrogen carrier was passed in the same direction through the annulus between the two tubes. In the other (two-sided) geometry the chloride-containing stream and the water-containing stream were both passed through the inner tube or both through the annulus.
Author:
Publisher: DIANE Publishing
ISBN: 1422345629
Category :
Languages : en
Pages : 214
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Book Description
Author: Kulprathipanja
Publisher: Routledge
ISBN: 1351419684
Category : Science
Languages : en
Pages : 280
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Book Description
This book summarizes the available information in six known areas of reactive separation: reaction/distillation, reaction/extraction, reaction/absorption, reaction/adsorption, reaction/membrane, and reaction/crystallization.
Author: Xiaoqin Zou
Publisher: John Wiley & Sons
ISBN: 3527343970
Category : Technology & Engineering
Languages : en
Pages : 466
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Book Description
A guide to membrane separation based on a variety of porous materials with promising separation applications Microporous Materials for Separation Membranes offers an in-depth guide that explores microporous materials? potential for membrane applications. The authors?two experts on the topic?examine a wide range of porous materials that have application potential including: microporous silica, porous carbons, zeolites, metal-organic frameworks (MOFs), and porous organic frameworks (POFs). Comprehensive in scope, the book covers a broad range of topics on membrane separations such as: hydrogen recovery, carbon dioxide capture, air purification, hydrocarbon separation, pervaporation, and water treatment. In addition, this up-to-date resource explores the most recent materials for preparing microporous membranes and explores the most promising applications for industrial use. This important book: -Examines the use of microporous materials as membranes to perform with different gases and liquids -Offers an overview of the basic knowledge of membrane separation and an intense examination of separations -Describes the state-of-the-art of membrane separation with porous materials -Highlights the most promising applications of industrial interest Written for scientists working in the fields of membranes, gas and liquid, Microporous Materials for Separation Membranes offers a valuable guide to the potential of microporous materials for membrane applications.
Author: Ahmad Fauzi Ismail
Publisher: Springer
ISBN: 3319010956
Category : Science
Languages : en
Pages : 340
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Book Description
This book describes the tremendous progress that has been made in the development of gas separation membranes based both on inorganic and polymeric materials. Materials discussed include polymer inclusion membranes (PIMs), metal organic frameworks (MOFs), carbon based materials, zeolites, as well as other materials, and mixed matrix membranes (MMMs) in which the above novel materials are incorporated. This broad survey of gas membranes covers material, theory, modeling, preparation, characterization (for example, by AFM, IR, XRD, ESR, Positron annihilation spectroscopy), tailoring of membranes, membrane module and system design, and applications. The book is concluded with some perspectives about the future direction of the field.
Author: Clara Casado-Coterillo
Publisher: MDPI
ISBN: 3039219766
Category : Technology & Engineering
Languages : en
Pages : 146
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Book Description
Mixed matrix membranes (MMMs) have attracted a large amount of interest in research laboratories worldwide in recent decades, motivated by the gap between a growing interest in developing novel mixed matrix membranes by various research groups and the lack of large-scale implementation. This Special Issue contains six publications dealing with the current opportunities and challenges of mixed matrix membranes development and applications to solve environmental and health challenges of the society of 21st century.
Author: A.J. Burggraaf
Publisher: Elsevier
ISBN: 0080534708
Category : Technology & Engineering
Languages : en
Pages : 709
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Book Description
Inorganic membrane science and technology is a new field of membrane separation technology which until recently was dominated by the earlier field of polymer membranes. Currently the subject is undergoing rapid development and innovation.The present book describes the fundamental principles of both synthesis of inorganic membranes and membrane supports and also the associated phenomena of transport and separation in a semi-quantitative form.Features of this book:- Examples are given which illustrate the state-of-the-art in the synthesis of membranes with controlled properties- Future possibilities and limitations are discussed- The reader is provided with references to more extended treatments in the literature- Potential areas for future innovation are indicated.By combining aspects of both the science and technology of inorganic membranes this book serves as a useful source of information for scientists and engineers working in this field. It also provides some observations of important investigators who have contributed to the development of this subject.
Author: Angelo Basile
Publisher: Elsevier
ISBN: 0857097342
Category : Technology & Engineering
Languages : en
Pages : 973
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Book Description
Membrane reactors are increasingly replacing conventional separation, process and conversion technologies across a wide range of applications. Exploiting advanced membrane materials, they offer enhanced efficiency, are very adaptable and have great economic potential. There has therefore been increasing interest in membrane reactors from both the scientific and industrial communities, stimulating research and development. The two volumes of the Handbook of membrane reactors draw on this research to provide an authoritative review of this important field.Volume 2 reviews reactor types and industrial applications, beginning in part one with a discussion of selected types of membrane reactor and integration of the technology with industrial processes. Part two goes on to explore the use of membrane reactors in chemical and large-scale hydrogen production from fossil fuels. Electrochemical devices and transport applications of membrane reactors are the focus of part three, before part four considers the use of membrane reactors in environmental engineering, biotechnology and medicine. Finally, the book concludes with a discussion of the economic aspects of membrane reactors.With its distinguished editor and international team of expert contributors, the two volumes of the Handbook of membrane reactors provide an authoritative guide for membrane reactor researchers and materials scientists, chemical and biochemical manufacturers, industrial separations and process engineers, and academics in this field. - Discusses integration of membrane technology with industrial processes - Explores the use of membrane reactors in chemical and large-scale hydrogen production from fossil fuels - Considers electrochemical devices and transport applications of membrane reactors
Author: Mohammad Younas
Publisher: John Wiley & Sons
ISBN: 3527348611
Category : Technology & Engineering
Languages : en
Pages : 372
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Book Description
An eye-opening exploration of membrane contactors from a group of industry leaders In Membrane Contactor Technology: Water Treatment, Food Processing, Gas Separation, and Carbon Capture, an expert team of researchers delivers an up-to-date and insightful explanation of membrane contactor technology, including transport phenomena, design aspects, and diverse process applications. The book also includes explorations of membrane synthesis, process, and module design, as well as rarely discussed process modeling and simulation techniques. The authors discuss the technical and economic aspects of this increasingly important technology and examine the geometry, flow, energy and mass transport, and design aspects of membrane contactor modules. They also cover a wide range of application opportunities for this technology, from the materials sciences to process engineering. Membrane Contactor Technology also includes: A thorough introduction to the membrane contactor extraction process, including dispersion-free membrane extraction processes and supported liquid membrane processes Comprehensive explorations of membrane transport theory, including discussions of diffusional mass and heat transfer modeling, as well as numerical modeling In-depth examinations of module configuration and geometry, including design and flow configuration Practical discussions of modes or operation, including membrane distillation, osmotic evaporation, and forward osmosis Perfect for process engineers, biotechnologists, water chemists, and membrane scientists, Membrane Contactor Technology also belongs in the libraries of chemical engineers, polymer chemists, and chemists working in the environmental industry.
