Preparation of Two Stage Steam-activated Carbon by Waste Tyre Using Fluidized Bed Reactor PDF Download
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Author: Nurul Sa'aadah Sulaiman
Publisher:
ISBN:
Category :
Languages : en
Pages : 224
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Author: Nurul Sa'aadah Sulaiman
Publisher:
ISBN:
Category :
Languages : en
Pages : 224
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Book Description
Author: Man Kee Lam
Publisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 196
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Author: Thanapon Lortong
Publisher:
ISBN: 9789746394734
Category : Automobiles
Languages : en
Pages : 246
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Book Description
This research was the study of the production of activated carbon from used tires by the processes of carbonization and activation with superheated steam and carbon dioxide in a fixed bed reactor with the diameter of 100 mm. The used tires were carbonized at 350 C for 60 min with the air flow rate of 0.52 nl/min. The characteristics of the resulted chars were yield of 41.40%, fixed carbon of 62.57%, ash of 15.30% and volatile matter of 22.13%. Then, the chars were activated with superheated steam and carbon dioxide. The optimum condition for activation was 0.60-1.18 mm of the chars size at 900 C for 45 min with air at a flow rate of 0.27 nl/min, carbon dioxide at a flow rate of 2.0 nl/min and superheated steam. The resulted activated carbon obtained yield of 27.99%, bulk density of 0.3590 g/cm3, ash of 21.05%, iodine number of 598.79 mg/g, methylene blue number of 247.08 mg/g, B.E.T. surface area of 658.75 m2/g, micropore area of 424.27 m2/g, external area of 234.48 m2/g and average pore diameter of 22.24 A.
Author: Andrew J. Wain
Publisher: Elsevier
ISBN: 0128200561
Category : Technology & Engineering
Languages : en
Pages : 580
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Book Description
Nanoscale Electrochemistry focuses on challenges and advances in electrochemical nanoscience at solid–liquid interfaces, highlighting the most prominent developments of the last decade. Nanotechnology has had a tremendous effect on the multidisciplinary field of electrochemistry, yielding new fundamental insights that have broadened our understanding of interfacial processes and stimulating new and diverse applications. The book begins with a tutorial chapter to introduce the principles of nanoscale electrochemical systems and emphasize their unique behavior compared with their macro/microscopic counterparts. Building on this, the following three chapters present analytical applications, such as sensing and electrochemical imaging, that are familiar to the traditional electrochemist but whose extension to the nanoscale is nontrivial and reveals new chemical information. The subsequent three chapters present exciting new electrochemical methodologies that are specific to the nanoscale, including "single entity"-based methods and surface-enhanced electrochemical spectroscopy. These techniques, now sufficiently mature for exposition, have paved the way for major developments in our understanding of solid–liquid interfaces and continue to push electrochemical analysis toward atomic-length scales. The final three chapters address the rich overlap between electrochemistry and nanomaterials science, highlighting notable applications in energy conversion and storage. This is an important reference for both academic and industrial researchers who are seeking to learn more about how nanoscale electrochemistry has developed in recent years. Outlines the major applications of nanoscale electrochemistry in energy storage, spectroscopy and biology Summarizes the major principles of nanoscale electrochemical systems, exploring how they differ from similar system types Discusses the major challenges of electrochemical analysis at the nanoscale
Author: Nikhil Sharma
Publisher: Springer
ISBN: 9811071853
Category : Science
Languages : en
Pages : 264
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Book Description
This book focuses on various aspects related to air pollution, including major sources of air pollution, measurement techniques, modeling studies and solution approaches to control. The book also presents case studies on measuring air pollution in major urban areas, such as Delhi, India. The book examines vehicles as a source of air pollution and addresses the quantitative analysis of engine exhaust emissions. Subsequent chapters discuss particulate matter from engines and coal-fired power plants as a major pollutant, as well as emission control techniques using various after treatment systems. The book’s final chapter considers future perspectives and a way forward for sustainable development. It also discusses several emission control techniques that will gain relevance in the future, when stricter emission norms will be enforced for international combustion (IC) engines as well as power plants. Given its breadth of coverage, the book will benefit a wide variety of readers, including researchers, professionals, and policymakers.
Author: Kit Ying Yeung
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 198
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Author: Wan Fatihah binti Wan Latip
Publisher:
ISBN:
Category : Carbon, Activated
Languages : en
Pages : 69
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Book Description
Author: Terachai Suravattanasakul
Publisher:
ISBN: 9789746394710
Category : Carbon, Activated
Languages : en
Pages : 252
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Book Description
The research objective was to produce activated carbon from palm-oil shells by one step pyrolysis and steam activation in a fixed bed reactor with the diameter of 100 mm. The studied variables were temperatures, times, palm-oil shells sizes and flow rates of air. The results showed that the optimum condition was 1.18-2.36 mm of palm-oil shells at 750 C for 2 hr with air flow rate of 0.72 nl/min, using steam as an activating agent. The characteristics of the resulted activated carbon with the yield of 19.66% were bulk density of 0.5160 g/cm3, 6.03% ash, iodine number of 620.16 mg/g, methylene blue number of 176.75 mg/g and 559.48 m2/g B.E.T. surface area. In addition, it had been found that when there was an adding of pyrolysis time with air before steam activation led to higher porosity development than one step pyrolysis and steam activation. From these experimental data, it was observed that the maximum surface area and adsorption capacity could be obtained from using 200 g of 1.18-2.36 mm of palm-oil shells at 750 C for 3 hr by adding pyrolysis with air for 30 min (0.72 nl/min) before steam activation. The resulting characteristics of the final product with the yield of 12.18% were bulk density of 0.5048 g/cm3, 7.54% ash, iodine number of 766.99 mg/g, methylene blue number of 189.20 mg/g and 669.75 m2/g B.E.T. surface area.
Author:
Publisher: World Scientific
ISBN: 9811223246
Category : Science
Languages : en
Pages : 1495
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Book Description
This four-volume handbook gives a state-of-the-art overview of porous materials, from synthesis and characterization and simulation all the way to manufacturing and industrial applications. The editors, coming from academia and industry, are known for their didactic skills as well as their technical expertise. Coordinating the efforts of 37 expert authors in 14 chapters, they construct the story of porous carbons, ceramics, zeolites and polymers from varied viewpoints: surface and colloidal science, materials science, chemical engineering, and energy engineering. Volumes 1 and 2 cover the fundamentals of preparation, characterisation, and simulation of porous materials. Working from the fundamentals all the way to the practicalities of industrial production processes, the subjects include hierarchical materials, in situ and operando characterisation using NMR, X-Ray scattering and tomography, state-of-the-art molecular simulations of adsorption and diffusion in crystalline nanoporous materials, as well as the emerging areas of bio-artificing and drug delivery. Volume 3 focuses on porous materials in industrial separation applications, including adsorption separation, membrane separation, and osmotic distillation. Finally, and highly relevant to tomorrow's energy challenges, Volume 4 explains the energy engineering aspects of applying porous materials in supercapacitors, fuel cells, batteries, electrolysers and sub-surface energy applications.The text contains many high-quality colourful illustrations and examples, as well as thousands of up-to-date references to peer-reviewed articles, reports and websites for further reading. This comprehensive and well-written handbook is a must-have reference for universities, research groups and companies working with porous materials.Related Link(s)
Author: Susannah L. Scott
Publisher: Springer Science & Business Media
ISBN: 0387306412
Category : Science
Languages : en
Pages : 341
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Book Description
With the recent advent of nanotechnology, research and development in the area of nanostructured materials has gained unprecedented prominence. Novel materials with potentially exciting new applications are being discovered at a much higher rate than ever before. Innovative tools to fabricate, manipulate, characterize and evaluate such materials are being developed and expanded. To keep pace with this extremely rapid growth, it is necessary to take a breath from time to time, to critically assess the current knowledge and provide thoughts for future developments. This book represents one of these moments, as a number of prominent scientists in nanostructured materials join forces to provide insightful reviews of their areas of expertise, thus offering an overall picture of the state-- the art of the field. Nanostructured materials designate an increasing number of materials with designed shapes, surfaces, structures, pore systems, etc. Nanostructured materials with modified surfaces include those whose surfaces have been altered via such techniques as grafting and tethering of organic or organometallic species, or through various deposition procedures including electro, electroless and vapor deposition, or simple adsorption. These materials find important applications in catalysis, separation and environmental remediation. Materials with patterned surfaces, which are essential for the optoelectronics industry, constitute another important class of surface-modified nanostructured materials. Other materials are considered nanostructured because of their composition and internal organization.
