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Novel Carbon Adsorbents

Novel Carbon Adsorbents
A Book

by J. M. D. Tascón

  • Publisher : Elsevier
  • Release : 2012
  • Pages : 686
  • ISBN : 0080977448
  • Language : En, Es, Fr & De
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Following in the lineage of Adsorption by Carbons (Bottani & Tascon, 2008), this work explores current research within contemporary novel carbon adsorbents. Both basic and applied aspects are discussed for this important class of materials. The first section of the book introduces physical adsorption and carbonaceous materials, and is followed by a section concerning the fundamentals of adsorption by carbons. This leads to development of a series of theoretical concepts that serve as an introduction to the following section in which adsorption is mainly envisaged as a tool to characterize the porous texture and surface chemistry of carbons. Particular attention is paid to novel nanocarbons, and the electrochemistry of adsorption by carbons is also addressed. Finally, several important technological applications of gas and liquid adsorption by carbons in areas such as environmental protection and energy storage constitute the last section of the book. Encompasses fundamental science of adsorption by carbons, in one location, supporting current R&D without extensive literature review Describes adsorption as it is currently applied to major novel types of carbon materials, including carbon gels, carbide-derived carbons, zeolite-templated carbvons, hydrothermal carbons, carbon nanohorns and graphene Specific discussion of fuel storage, environmental remediation and biomedical applications, of contemporary interest to many surface chemists and applications-focused researchers

Novel Carbon Adsorbents

Novel Carbon Adsorbents
A Book

by Ranjan Ghosal

  • Publisher : Unknown Publisher
  • Release : 1997
  • Pages : 388
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Novel Carbon Adsorbents

Novel Carbon Adsorbents
A Book

by Juan M.D. Tascón

  • Publisher : Elsevier
  • Release : 2012-11-23
  • Pages : 600
  • ISBN : 0080977456
  • Language : En, Es, Fr & De
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Following in the lineage of Adsorption by Carbons (Bottani & Tascon, 2008), this work explores current research within contemporary novel carbon adsorbents. Both basic and applied aspects are discussed for this important class of materials. The first section of the book introduces physical adsorption and carbonaceous materials, and is followed by a section concerning the fundamentals of adsorption by carbons. This leads to development of a series of theoretical concepts that serve as an introduction to the following section in which adsorption is mainly envisaged as a tool to characterize the porous texture and surface chemistry of carbons. Particular attention is paid to novel nanocarbons, and the electrochemistry of adsorption by carbons is also addressed. Finally, several important technological applications of gas and liquid adsorption by carbons in areas such as environmental protection and energy storage constitute the last section of the book. Encompasses fundamental science of adsorption by carbons, in one location, supporting current R&D without extensive literature review Describes adsorption as it is currently applied to major novel types of carbon materials, including carbon gels, carbide-derived carbons, zeolite-templated carbvons, hydrothermal carbons, carbon nanohorns and graphene Specific discussion of fuel storage, environmental remediation and biomedical applications, of contemporary interest to many surface chemists and applications-focused researchers

Comparing Metals Adsorption by Carbon Adsorbents

Comparing Metals Adsorption by Carbon Adsorbents
A Book

by Yusuf Onundi,Abdullah Al-Mamun,Ma'an Fami Al-Khatib

  • Publisher : LAP Lambert Academic Publishing
  • Release : 2012-02
  • Pages : 188
  • ISBN : 9783848414956
  • Language : En, Es, Fr & De
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Pollution of the aquatic environment by heavy metals has detrimental effect on living species. In this work, novel carbon nano-materials (CNM) and commercial granular activated carbon (GAC) adsorbents were evaluated for removal of heavy metal matrix (Cu, Ni and Pb) from aqueous solution to meet Department of Environment (DOE) Malaysia s guideline. Results from the characterization of GAC and CNM showed that GAC had higher surface area and more functional groups. Optimum adsorption capacity of GAC and CNM were observed at pH 5 and 1 g/L dosage, while equilibrium adsorption conditions were generally noticed by 60 minutes of agitation at 100 rpm. The initial metal concentrations and functional groups on adsorbents were the major factors affecting the affinity of metals by both GAC and CNM.

Adsorption and Electrothermal Desorption of Organic Vapors Using Activated Carbon Adsorbents with Novel Morphologies

Adsorption and Electrothermal Desorption of Organic Vapors Using Activated Carbon Adsorbents with Novel Morphologies
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 2006
  • Pages : 2723
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Use of Adsorbents for the Removal of Pollutants from Wastewater

Use of Adsorbents for the Removal of Pollutants from Wastewater
A Book

by Gordon McKay

  • Publisher : CRC Press
  • Release : 1995-10-25
  • Pages : 208
  • ISBN : 9780849369209
  • Language : En, Es, Fr & De
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Use of Adsorbents for the Removal of Pollutants from Wastewater describes the most commonly occurring industrial effluents, and presents direct means and methodologies for treating them. In addition to its excellent introduction to pollutants, this book contains all of the basics you need for understanding the characteristics and applications of adsorbent materials. With this book, you can choose from a wide variety of traditional and novel adsorbents, including alternative, relatively inexpensive adsorbents.

Slurry Molding Technologies for Novel Carbon and Graphite Materials

Slurry Molding Technologies for Novel Carbon and Graphite Materials
A Book

by T. D. Burchell

  • Publisher : Unknown Publisher
  • Release : 2004
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The Oak Ridge National Laboratory (ORNL) has developed a slurry molding technology for the manufacture of porous, high surface area, carbon fiber composites molecular sieves, and carbon-carbon composite preforms. Potentially, this technology could be applied to the manufacture of a host of novel carbon materials including porous adsorbent carbons, low-pressure drop adsorbent carbon composites, ultra-fine-grained graphite, and carbon fiber reinforced graphite. New opportunities for high surface carbon fiber composite molecular sieve (CFCMS) materials are now emerging. Many of these opportunities are driven by increasingly harsh environmental pressures. Traditional granular activated carbon (GAC) is not suitable for many of these applications because of the difficulties encountered with attrition and in forming ''structures'' which have the necessary mechanical and physical properties. In addition, the electrical desorption of adsorbed species is not possible with GAC due to its low bulk electrical conductivity. Activated carbon fibers have been found to be useful in some applications. Work by ORNL has shown, for example, that CFCMS materials are capable of adsorbing various gases and desorbing them under electrical stimulation. For some applications these fibers have to be formed into a structure that can offer the desired mechanical integrity and pressure drop characteristics. To date, the work by ORNL has focused on the use of a single manufacturer's isotropic pitch fibers which, when activated, may be cost prohibitive for many applications. Fine-grained graphite is attractive for many applications including the chemical processing industry where their unique combination of properties--including high strength and chemical inertness, are particularly attractive. However, a lack of toughness can limit their utility in certain applications. The use of ultra-fine powders in conjunction with slurry molding and hot pressing offers the possibility of higher strength graphite. Moreover, the inclusion of carbon fibers may provide a toughening mechanism, resulting in tougher, stronger graphite at an attractive cost. The objective of this work was to further develop the ORNL slurry molding technology and apply it to the following tasks: (1) the development of low cost, high surface area CFCMS materials and structures; (2) the development of ultra-fine-grained graphite; and (3) to identify suitable applications for the materials developed in (1) and (2). The work was conducted jointly by SGL and ORNL.

Development of Novel Activated Carbon-based Adsorbents for Control of Mercury Emissions from Coal-fired Power Plants

Development of Novel Activated Carbon-based Adsorbents for Control of Mercury Emissions from Coal-fired Power Plants
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1998
  • Pages : 5
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The overall objective of this study is to evaluate pertinent design and operational parameters that would enable successful application of adsorption-based technologies for the reduction of mercury emissions from coal-fired power plants. The first part of the study will evaluate the most suitable impregnate for its ability to enhance the adsorptive capacity of activated carbon for mercury vapor under various process conditions. The second part of the study will evaluate the rate of mercury uptake (adsorption kinetics) by several impregnated activated carbons. Concerned with the ability of the adsorbed mercury to migrate back into the environment once saturated adsorbent is removed from the system, the study will also determine the fate of mercury adsorbed on these impregnated carbons.

Development of Novel Activated Carbon-Based Adsorbents for Control of Mercury Emission From Coal-Fired Power Plants

Development of Novel Activated Carbon-Based Adsorbents for Control of Mercury Emission From Coal-Fired Power Plants
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1997
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The overall objective of this study is to evaluate pertinent design and operational parameters that would enable successful application of activated carbon adsorption for the reduction of mercury emissions from coal-fired power plants. The study will evaluate the most suitable impregnate such as sulfur, chloride and other chelating agents for its ability to enhance the adsorptive capacity of activated carbon for mercury vapor under various process conditions. The main process variables to be evaluated include temperature, mercury concentration and speciation, relative humidity, oxygen content, and presence of SO2 and NOx in the flue gas. The optimal amount of impregnate for each of these carbons will be determined based on the exhibited performance. Another important parameter which governs the applicability of adsorption technology for the flue gas clean up is the rate at which vapor phase mercury is being removed from the flue gas by activated carbon. Therefore, the second part of this study will evaluate the adsorption kinetics using the impregnated activated carbons listed above. The rate of mercury uptake will also be evaluated under the process conditions that are representative of coal-fired power plants. Concerned with the ability of the adsorbed mercury to migrate back into the environment once saturated adsorbent is removed from the system, the study will also focus on the mercury desorption rate as a function of the type of impregnate, loading conditions, and the time of contact prior to disposal.

Adsorption by Powders and Porous Solids

Adsorption by Powders and Porous Solids
Principles, Methodology and Applications

by Jean Rouquerol,Françoise Rouquerol,Philip Llewellyn,Guillaume Maurin,Kenneth S.W. Sing

  • Publisher : Academic Press
  • Release : 2013-09-06
  • Pages : 646
  • ISBN : 0080970362
  • Language : En, Es, Fr & De
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The declared objective of this book is to provide an introductory review of the various theoretical and practical aspects of adsorption by powders and porous solids with particular reference to materials of technological importance. The primary aim is to meet the needs of students and non-specialists who are new to surface science or who wish to use the advanced techniques now available for the determination of surface area, pore size and surface characterization. In addition, a critical account is given of recent work on the adsorptive properties of activated carbons, oxides, clays and zeolites. Provides a comprehensive treatment of adsorption at both the gas/solid interface and the liquid/solid interface Includes chapters dealing with experimental methodology and the interpretation of adsorption data obtained with porous oxides, carbons and zeolites Techniques capture the importance of heterogeneous catalysis, chemical engineering and the production of pigments, cements, agrochemicals, and pharmaceuticals

Development of a Novel Activated Carbon Based Adsorbents for Control of Mercury Emissions from Coal-Fired Power Plants

Development of a Novel Activated Carbon Based Adsorbents for Control of Mercury Emissions from Coal-Fired Power Plants
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1997
  • Pages : 18
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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The overall objective of this study is to evaluate pertinent design and operational parameters that would enable successful application of activated carbon adsorption for the reduction of mercury emissions from coal-fired power plants. The study will evaluate the most suitable impregnate such as sulfur, chloride and other chelating agents for its ability to enhance the adsorptive capacity of activated carbon for mercury vapor under various process conditions. The main process variables to be evaluated include temperature, mercury concentration and speciation, relative humidity, oxygen content, and presence of S02 and NO(subscript x) in the flue gas. The optimal amount of impregnate for each of these carbons will be determined based on the exhibited performance. Another important parameter which governs the applicability of adsorption technology for the flue gas clean up is the rate at which vapor phase mercury is being removed from the flue gas by activated carbon. Therefore, the second part of this study will evaluate the adsorption kinetics using the impregnated activated carbons listed above. The rate of mercury uptake will also be evaluated under the process conditions that are representative of coal-fired power plants. Concerned with the ability of the adsorbed mercury to migrate back into the environment once saturated adsorbent is removed from the system, the study will also focus on the mercury desorption rate as a function of the type of impregnate, loading conditions, and the time of contact prior to disposal.

Chemistry & Physics of Carbon

Chemistry & Physics of Carbon
A Book

by Peter A. Thrower

  • Publisher : CRC Press
  • Release : 1991-05-23
  • Pages : 384
  • ISBN : 9780824784829
  • Language : En, Es, Fr & De
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This book presents authoritative, interdisciplinary coverage of contemporary topics in the field of carbon chemistry and physics and clearly shows the diversity and universality of carbon research. It is useful for readers working in the general area of carbon adsorbents.

Supported Layered Double Hydroxides as CO2 Adsorbents for Sorption-enhanced H2 Production

Supported Layered Double Hydroxides as CO2 Adsorbents for Sorption-enhanced H2 Production
A Book

by Diana Iruretagoyena Ferrer

  • Publisher : Springer
  • Release : 2016-07-15
  • Pages : 209
  • ISBN : 3319412760
  • Language : En, Es, Fr & De
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This thesis presents a combination of material synthesis and characterization with process modeling. In it, the CO2 adsorption properties of hydrotalcites are enhanced through the production of novel supported hybrids (carbon nanotubes and graphene oxide) and the promotion with alkali metals. Hydrogen is regarded as a sustainable energy carrier, since the end users produce no carbon emissions. However, given that most of the hydrogen produced worldwide comes from fossil fuels, its potential as a carbon-free alternative depends on the ability to capture the carbon dioxide released during manufacture. Sorption-enhanced hydrogen production, in which CO2 is removed as it is formed, can make a major contribution to achieving this. The challenge is to find solid adsorbents with sufficient CO2 capacity that can work in the right temperature window over repeated adsorption-desorption cycles. The book presents a highly detailed characterization of the materials, together with an accurate measurement of their adsorption properties under dry conditions and in the presence of steam. It demonstrates that even small quantities of graphene oxide provide superior thermal stability to hydrotalcites due to their compatible layered structure, making them well suited as volume-efficient adsorbents for CO2. Lastly, it identifies suitable catalysts for the overall sorption-enhanced water gas shift process.

Carbon Materials for Advanced Technologies

Carbon Materials for Advanced Technologies
A Book

by T.D. Burchell

  • Publisher : Elsevier
  • Release : 1999-07-22
  • Pages : 540
  • ISBN : 0080528546
  • Language : En, Es, Fr & De
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The inspiration for this book came from an American Carbon Society Workshop entitled "Carbon Materials for Advanced Technologies" which was hosted by the Oak Ridge National Laboratory in 1994. Chapter 1 contains a review of carbon materials, and emphasizes the structure and chemical bonding in the various forms of carbon, including the four allotropes diamond, graphite, carbynes, and the fullerenes. In addition, amorphous carbon and diamond films, carbon nanoparticles, and engineered carbons are discussed. The most recently discovered allotrope of carbon, i.e., the fullerenes, along with carbon nanotubes, are more fully discussed in Chapter 2, where their structure-property relations are reviewed in the context of advanced technologies for carbon based materials. The synthesis, structure, and properties of the fullerenes and nanotubes, and modification of the structure and properties through doping, are also reviewed. Potential applications of this new family of carbon materials are considered. The manufacture and applications of adsorbent carbon fibers are discussed in Chapter 3. The manufacture, structure and properties of high performance fibers are reviewed in Chapter 4, and the manufacture and properties of vapor grown fibers and their composites are reported in Chapter 5. The properties and applications of novel low density composites developed at Oak Ridge National Laboratory are reported in Chapter 6. Coal is an important source of energy and an abundant source of carbon. The production of engineering carbons and graphite from coal via a solvent extraction route is described in Chapter 7. Applications of activated carbons are discussed in Chapters 8-10, including their use in the automotive arena as evaporative loss emission traps (Chapter 8), and in vehicle natural gas storage tanks (Chapter 9). The application of activated carbons in adsorption heat pumps and refrigerators is discussed in Chapter 10. Chapter 11 reports the use of carbon materials in the fast growing consumer electronics application of lithium-ion batteries. The role of carbon materials in nuclear systems is discussed in Chapters 12 and 13, where fusion device and fission reactor applications, respectively, are reviewed. In Chapter 12 the major technological issues for the utilization of carbon as a plasma facing material are discussed in the context of current and future fusion tokamak devices. The essential design features of graphite moderated reactors, (including gas-, water- and molten salt-cooled systems) are reviewed in Chapter 13, and reactor environmental effects such as radiation damage and radiolytic corrosion are discussed. The fracture behaviour of graphite is discussed in qualitative and quantitative terms in Chapter 14. The applications of Linear Elastic Fracture Mechanics and Elastic-Plastic Fracture Mechanics to graphite are reviewed and a study of the role of small flaws in nuclear graphites is reported.

Aquananotechnology

Aquananotechnology
Applications of Nanomaterials for Water Purification

by Kamel A. Abd-Elsalam,Muhammad Zahid

  • Publisher : Elsevier
  • Release : 2020-12-01
  • Pages : 626
  • ISBN : 0128211423
  • Language : En, Es, Fr & De
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Aquananotechnology: Applications of Nanomaterials for Water Purification focuses on the impacts of, and opportunities for, the application of nanotechnology to enhance water quality and the societal concerns surrounding the widespread use of nanotechnology in the water arena. Sections cover the use of nano-sensors for the detection of water pollutants, the control of waterborne pathogens, and the use of nano-biochar coal fly composites for phytoremdtions wastewater pollutants. In addition, the book explores the uses of nanoadsorbents for heavy metals, dyes, Arsenic, pesticides, and water/wastewater remediation and decontamination of water from xenobiotics, bionanocomposites, metal oxides, silver, zinc nanoparticles, and carbon-based nanomaterials for wastewater treatment. In addition, the book covers the use of zerovalent iron nanomaterials and nanostructured mesoporous silica for water purification, along with nano-hydrogels to increase water efficiency and conservation. Finally, the socioeconomic impacts and risks of aquananotechnology in ecosystems are discussed. This book provides a detailed description of the ecological applications of nanomaterials in aquatic environments, offering a cogent analysis of both major applications and challenges. Shows how a range of nanomaterial types are being used for ecological applications in aquatic environments Explores the effects different types of nanomaterials have on a variety of ecosystems Assesses the major challenges of using nanotechnology to improve water quality on a mass scale

Application of Adsorbents for Water Pollution Control

Application of Adsorbents for Water Pollution Control
A Book

by Amit Bhatnagar

  • Publisher : Bentham Science Publishers
  • Release : 2012-11-11
  • Pages : 541
  • ISBN : 1608052699
  • Language : En, Es, Fr & De
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Among various water and wastewater treatment technologies, the adsorption process is considered better because of lower cost, simple design and easy operation. Activated carbon (a universal adsorbent) is generally used for the removal of diverse types of pollutants from water and wastewater. Research is now being directed towards the modification of carbon surfaces to enhance its adsorption potential towards specific pollutants. However, widespread use of commercial activated carbon is sometimes restricted especially in developing or poor countries due to its higher costs. Attempts are therefore being made to develop inexpensive adsorbents utilizing abundant natural materials, agricultural and industrial waste materials. Use of waste materials as low-cost adsorbents is attractive due to their contribution in the reduction of costs for waste disposal, therefore contributing to environmental protection. This e-book explores knowledge on recent developments in adsorbents synthesis and their use in water pollution control. This handy reference work is intended for researchers and scientists actively engaged in the study of adsorption and the development and application of efficient adsorption technology for water treatment. This e-book covers a wide range of topics including modeling aspects of adsorption process and the applications of conventional and non-conventional adsorbents in water remediation emphasizing sorption mechanisms of different pollutants on the adsorbents.

A Novel Carbon Fiber Based Material and Separation Technology

A Novel Carbon Fiber Based Material and Separation Technology
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1996
  • Pages : 7
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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Our novel carbon fiber based adsorbent material shows preferential uptake of CO[sub 2] over other gases. The material has a unique combination of properties, which include a large micropore volume, a large BET surface area, and electrical conductivity. These properties have been exploited to effect the separation of CO[sub 2] from a model gas (CH[sub 4]). Enhanced desorption is achieved using an electrical current passed through the material at low voltage. The manufacture, characterization, and CO[sub 2] adsorption behavior of the materials is reported here, along with our novel electrical swing separation technology.

Nanoporous Materials for Molecule Separation and Conversion

Nanoporous Materials for Molecule Separation and Conversion
A Book

by Jian Lu,Frank Ding

  • Publisher : Elsevier
  • Release : 2020-07-04
  • Pages : 510
  • ISBN : 0128184884
  • Language : En, Es, Fr & De
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Nanoporous Materials for Molecule Separation and Conversion cover the topic with sections on nanoporous material synthesis and characterization, nanoporous materials for molecule separation, and nanoporous materials for energy storage and renewable energy. Typical nanoporous materials including carbon, zeolite, silica and metal-organic frameworks and their applications in molecule separation and energy related applications are covered. In addition, the fundamentals of molecule adsorption and molecule transport in nanoporous materials are also included, providing readers with a stronger understanding of the principles and topics covered. This is an important reference for anyone exploring nanoporous materials, including researchers and postgraduate students in materials science and chemical engineering. In addition, it is ideal for industry professionals working on a wide range of applications for nanoporous materials. Outlines the fundamental principles of nanoporous materials design Explores the application of nanoporous materials in important areas such as molecule separation and energy storage Gives real-life examples of how nanoporous materials are used in a variety of industry sector

Use of Carbon Fiber Composite Molecular Sieves for Air Separation

Use of Carbon Fiber Composite Molecular Sieves for Air Separation
A Book

by Timothy D. Burchell,Cristian I. Contescu,Frederick S. Baker,Nidia C. Gallego

  • Publisher : Unknown Publisher
  • Release : 2005
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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A novel adsorbent material, 'carbon fiber composite molecular sieve' (CFCMS), has been developed by the Oak Ridge National Laboratory. Its features include high surface area, large pore volume, and a rigid, permeable carbon structure that exhibits significant electrical conductivity. The unique combination of high adsorptive capacity, permeability, good mechanical properties, and electrical conductivity represents an enabling technology for the development of novel gas separation and purification systems. In this context, it is proposed that a fast-cycle air separation process that exploits a kinetic separation of oxygen and nitrogen should be possible using a CFCMS material coupled with electrical swing adsorption (ESA). The adsorption of O{sub 2}, N{sub 2}, and CO{sub 2} on activated carbon fibers was investigated using static and dynamic techniques. Molecular sieving effects in the activated carbon fiber were highlighted by the adsorption of CO{sub 2}, a more sensitive probe molecule for the presence of microporosity in adsorbents. The kinetic studies revealed that O2 was more rapidly adsorbed on the carbon fiber than N{sub 2}, and with higher uptake under equilibrium conditions, providing the fiber contained a high proportion of very narrow micropores. The work indicated that CFCMS is capable of separating O{sub 2} and N{sub 2} from air on the basis of the different diffusion rates of the two molecules in the micropore network of the activated carbon fibers comprising the composite material. In response to recent enquires from several potential users of CFCMS materials, attention has been given to the development of a viable continuous process for the commercial production of CFCMS material. As part of this effort, work was implemented on characterizing the performance of lignin-based activated carbon fiber, a potentially lower cost fiber than the pitch-based fibers used for CFCMS production to date. Similarly, to address engineering issues, measurements were made to characterize the pressure drop of CFCMS as a function of carbon fiber dimensions and monolith density.

Full-size photocopying

Full-size photocopying
A Book

by Anonim

  • Publisher : Unknown Publisher
  • Release : 1960
  • Pages : 129
  • ISBN : 9876543210XXX
  • Language : En, Es, Fr & De
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