Hydrothermal Conversion Of South African Coal Fly Ash Into Pure Phase Zeolite Na P1

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Hydrothermal Conversion of South African Coal Fly Ash Into Pure Phase Zeolite Na-P1

Download Hydrothermal Conversion of South African Coal Fly Ash Into Pure Phase Zeolite Na-P1 PDF Online Free

Author : Mugera W. Gitari
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

Book Synopsis Hydrothermal Conversion of South African Coal Fly Ash Into Pure Phase Zeolite Na-P1 by : Mugera W. Gitari

Download or read book Hydrothermal Conversion of South African Coal Fly Ash Into Pure Phase Zeolite Na-P1 written by Mugera W. Gitari and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: South African coal combustion power utilities generate huge amounts of coal fly ash that can be beneficiated into zeolitic products. This chapter reports on the optimization of the presynthesis and synthesis conditions for a pure-phase zeolite Na-P1 from selected South African coal fly ashes. The hydrothermal treatment time, temperature, and molar quantities of water during the hydrothermal treatment step were successfully optimized. The optimum hydrothermal treatment time and temperature were 48 h and 140°C, respectively. Pure-phase zeolite Na-P1 was obtained with a molar regime of 1 SiO2:0.36 Al2O3:0.59 NaOH:0.49 H2O at an aging temperature of 47°C for 48 h. The optimized conditions were applied to two fly ashes from two coal-fired power utilities, and high-purity zeolite Na-P1 was obtained. The third coal fly ash with a different chemical composition gave a low-quality Na-P1 under the optimized conditions. The cation exchange capacity for the high-purity zeolite phase was 4.11 mEq/g, indicating that the adjustment of reactant composition and presynthesis or synthesis parameters leads to yields of high-quality zeolite Na-P1. The results also show that conversion of the coal fly ash into high-purity zeolite also depends on the chemical and mineralogical composition of the coal fly ash.

Fly Ash Zeolites

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Author : Bhagwanjee Jha
Publisher : Springer
ISBN 13 : 9811014043
Total Pages : 233 pages
Book Rating : 4.8/5 (11 download)

Book Synopsis Fly Ash Zeolites by : Bhagwanjee Jha

Download or read book Fly Ash Zeolites written by Bhagwanjee Jha and published by Springer. This book was released on 2016-05-27 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a thorough review of the state-of-knowledge and recent innovations in the synthesis of pure and improved grades of fly ash zeolites (FAZ). Addressing improvements to conventional methods, it also showcases a novel technique for the synthesis of high cation exchangers from fly ash and detailed characterization techniques for the products obtained. In addition, it examines in detail various areas of specific applications of fly ash zeolites. Over the years, several methods such as hydrothermal, fusion prior to hydrothermal, microwave assisted hydrothermal and molten salt techniques for producing FAZ have been developed. However, one-step and two-step reactions between the fly ash and alkali usually generate alkaline wastes that may cause environmental contamination. In addition, the separation of FAZ from the partially activated fly ash (the impurities) remains a major concern for researchers and industrialists alike. /divIn view of these challenges, this book presents a novel technique for three-step activation (TSA), which focuses on recycling the fly ash-NaOH-water reaction by-products until zeolitic residue is formed. The FAZ (the final residue after third step reactions) synthesized in this manner exhibits exceptionally high cation exchange capacity, specific surface area and pore area. This book offers a comprehensive compendium of reading material on fly ash and its recycled product, the zeolites. Students at both undergraduate and graduate levels, researchers, and practicing engineers will all find this book to be a valuable guide in their respective fields.

Zeolites

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Author : Claudia Belviso
Publisher : BoD – Books on Demand
ISBN 13 : 9535125761
Total Pages : 228 pages
Book Rating : 4.5/5 (351 download)

Book Synopsis Zeolites by : Claudia Belviso

Download or read book Zeolites written by Claudia Belviso and published by BoD – Books on Demand. This book was released on 2016-08-24 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book collects recent results about research activities on zeolites, from synthesis to application. It is composed of two sections. The first is devoted to articles and brief review articles on the synthesis of zeolite from fly ash and final application of these newly formed minerals to solve environmental problems. The second part of the book provides useful information on different applications both of natural and synthetic zeolites ranging from environmental pollution to industrial and commercial applications. The performance of zeolite molecular sieves, hollow titanium zeolites and luminescent zeolites is interesting considering the new frontiers reached by the research on zeolites. This book is a useful instrument for researchers, teachers and students who are interested in investigating innovative aspects of the studies on zeolite.

Hydrothermal Synthesis and Optimisation of Zoelite Na-P1 from South African Coal Fly Ash

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Author : Nicholas Mulei Musyoka
Publisher :
ISBN 13 :
Total Pages : 354 pages
Book Rating : 4.:/5 (68 download)

Book Synopsis Hydrothermal Synthesis and Optimisation of Zoelite Na-P1 from South African Coal Fly Ash by : Nicholas Mulei Musyoka

Download or read book Hydrothermal Synthesis and Optimisation of Zoelite Na-P1 from South African Coal Fly Ash written by Nicholas Mulei Musyoka and published by . This book was released on 2009 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Synthesis of Zeolites from Coal Fly Ash

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Author : Guido Gerard Hollman
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.F/5 ( download)

Book Synopsis Synthesis of Zeolites from Coal Fly Ash by : Guido Gerard Hollman

Download or read book Synthesis of Zeolites from Coal Fly Ash written by Guido Gerard Hollman and published by . This book was released on 1999 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advances of Science and Technology

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Author : Fasikaw Atanaw Zimale
Publisher : Springer
ISBN 13 : 3030153576
Total Pages : 625 pages
Book Rating : 4.0/5 (31 download)

Book Synopsis Advances of Science and Technology by : Fasikaw Atanaw Zimale

Download or read book Advances of Science and Technology written by Fasikaw Atanaw Zimale and published by Springer. This book was released on 2019-03-07 with total page 625 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed post-conference proceedings of the 6th International Conference on Advancement of Science and Technology, ICAST 2018, which took place in Bahir Dar, Ethiopia, in October 2018. The 47 revised full papers were carefully reviewed and selected from 71 submissions. The papers present economic and technologic developments in modern societies in five tracks: agro-processing industries for sustainable development, water resources development for the shared vision in blue Nile basin, IT and computer technology innovation, recent advances in electrical and computer engineering, progresses in product design and system optimization.

Zeolite Synthesis

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Author : Mario L. Occelli
Publisher :
ISBN 13 :
Total Pages : 672 pages
Book Rating : 4.:/5 (44 download)

Book Synopsis Zeolite Synthesis by : Mario L. Occelli

Download or read book Zeolite Synthesis written by Mario L. Occelli and published by . This book was released on 1989 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is a complete progress report on the various aspects of zeolite synthesis on a molecular level. It provides many examples that illustrate how zeolites can be crystallized and what the important parameters are that control crystallization. Forty-two chapters cover such topics as: crystallization techniques; gel chemistry; crystal size and morphology; the role of organic compounds; and novel synthesis procedures. It offers a complete review of zeolite synthesis as well as the latest finding in this important field. Contains benchmark contributions from many notable pioneers in the field, including R.M. Barrer, H. Robson, and Robert Milton.

Synthesis of Zeolite from Fly Ash and Their Use as Soil Amendment

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Author : Maria Harja
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (115 download)

Book Synopsis Synthesis of Zeolite from Fly Ash and Their Use as Soil Amendment by : Maria Harja

Download or read book Synthesis of Zeolite from Fly Ash and Their Use as Soil Amendment written by Maria Harja and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The amendments may be natural or synthetic and by their origin organic or inorganic. Among amendments, the inorganic ones are recommended, such as gypsum, lime, zeolites and altered rocks, including sand, ceramic, perlite, ash, slag, zeolite, pyrites, dolomite, calcined clay, et cetera Fly ash-based zeolites can be used as amendments to improve the use of the soil for agricultural purposes. Generally, there are different methods for the synthesis of new materials using solid waste - fly ashes. Methods are known to be composed of a single stage or two stages. The first method - the conventional - is direct hydrothermal conversion of the mixture of ash and alkaline solution (NaOH or KOH), but only 50% of ashes can be converted into zeolite. The second method consists in mixing the ash with KOH and fusion at elevated temperature. The method leads to an advanced conversion - the type of zeolite depending on treatment conditions. Other studies recommend the conversion of ash using microwave ovens or ultrasound bath; in this case, the conversion time is reduced to 1-2 hours. From these methods, the direct method was proposed to be used in synthesizing zeolites for agriculture, with a part in controlling release of fertilizers and as a soil amendment. The synthesized materials were characterized with respect to microstructure (electronic microscopy SEM) and chemical and mineralogical composition (EDAX, X-ray diffraction). By analyzing the obtained data, one may observe the destruction of the ash network and crystallization of the zeolitic phase, especially in the case of treatment by diffusion. The XRD analysis confirms the presence of zeolite in materials obtained. Good results were also obtained in the case of using ultrasound treatment for zeolite synthesis; also, the time of treatment significantly decreased in this case.

Handbook of Zeolite Science and Technology

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Author : Scott M. Auerbach
Publisher : CRC Press
ISBN 13 : 9780203911167
Total Pages : 1202 pages
Book Rating : 4.9/5 (111 download)

Book Synopsis Handbook of Zeolite Science and Technology by : Scott M. Auerbach

Download or read book Handbook of Zeolite Science and Technology written by Scott M. Auerbach and published by CRC Press. This book was released on 2003-07-31 with total page 1202 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Handbook of Zeolite Science and Technology offers effective analyses ofsalient cases selected expressly for their relevance to current and prospective research. Presenting the principal theoretical and experimental underpinnings of zeolites, this international effort is at once complete and forward-looking, combining fundamental

Molecular Sieves

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Author : Rosemarie Szostak
Publisher : Springer Science & Business Media
ISBN 13 : 9401095299
Total Pages : 473 pages
Book Rating : 4.4/5 (1 download)

Book Synopsis Molecular Sieves by : Rosemarie Szostak

Download or read book Molecular Sieves written by Rosemarie Szostak and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: From areport by a Lieutenant Colonel W.A. Ross (Chern. News, Nov.15, 1878, p. 236). Progress did not accelerate during the next 50 years. McBain, in his clas sic 1932 book, The Sorption oi Gases by So lids, devoted a chapter to sorp tion by chabasite, other zeolites, and permeable crystals. McBain remarked that "great interest attaches to the finding of Weigel and Steinhoff [0. Weigel and E. Steinhoff, Z. Kris!., 61, 125 (1925{raquo}) that chabasite rapidly sorbs the vapors of water, methyl and ethyl alcohol and formie acid, whereas acetone, ether and benzene are largely excluded. The significance of their results was pointed out by McBain [J.W. McBain, Colloid. Syrnp. Mon., 20, 1 (1926{raquo}) and recognized by alliater writers. It is evident that the partially dehydrated chabasite forms a nearly perfect molecular sieve or a semipermeable membrane of extremely regular structure ... ". While the significance of the above observation may have been recog nized, it had little impact. Thus, an eminent pioneer in the synthesis and characterization af zeolites, Professor R.M. Barrer, spent nearly two dec ades (following his Ph. D. studies in the 1930s) developing a firm foundation for the rapid growth in scientific understanding and industrial applications of zeolites which has taken place during the last 30 years.

Coal Fly Ash Beneficiation

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Author : Segun Akinyemi
Publisher : BoD – Books on Demand
ISBN 13 : 9535137522
Total Pages : 210 pages
Book Rating : 4.5/5 (351 download)

Book Synopsis Coal Fly Ash Beneficiation by : Segun Akinyemi

Download or read book Coal Fly Ash Beneficiation written by Segun Akinyemi and published by BoD – Books on Demand. This book was released on 2018-01-31 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book deals with various, very significant topics of coal fly ash beneficiation, such as treatment of acid mine drainage with coal fly ash, toxic metal adsorption using coal fly ash, recovery of metals from coal fly ash and phytoreclamation of abandoned acid mine drainage site after treatment with coal fly ash, the status of research in coal fly ash utilization and applications and some other related topics in this growing and increasingly important research area. Overall, coal fly ash beneficiation has come to assume an important role in most areas of waste management research today. Continued growth and emphasis on scientific research is expected in all areas of waste management and conversion of waste to wealth technologies.

Process Design for the Up-scale Zeolite Synthesis from South African Coal Fly Ash

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Author : Pieter Wynand Du Plessis
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (876 download)

Book Synopsis Process Design for the Up-scale Zeolite Synthesis from South African Coal Fly Ash by : Pieter Wynand Du Plessis

Download or read book Process Design for the Up-scale Zeolite Synthesis from South African Coal Fly Ash written by Pieter Wynand Du Plessis and published by . This book was released on 2014 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Natural Zeolites

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Author : David L. Bish
Publisher : Walter de Gruyter GmbH & Co KG
ISBN 13 : 150150911X
Total Pages : 668 pages
Book Rating : 4.5/5 (15 download)

Book Synopsis Natural Zeolites by : David L. Bish

Download or read book Natural Zeolites written by David L. Bish and published by Walter de Gruyter GmbH & Co KG. This book was released on 2018-12-17 with total page 668 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 45 of Reviews in Mineralogy and Geochemistry is a new and expanded update of Volume 4 from 1977. Most of the material in this volume is entirely new, and Natural Zeolites: Occurrence, Properties, Applications presents a fresh and expanded look at many of the subjects contained in Volume 4. There has been an explosion in our knowledge of the crystal chemistry and structures of natural zeolites (Chapters 1 and 2), due in part to the now-common Rietveld method that allows treatment of powder diffraction data. Studies on the geochemistry of natural zeolites have also greatly increased, partly as a result of the interests related to the disposal of radioactive wastes, and Chapters 3, 4, 5, 13, and 14 detail the latest results in this important area. Until the latter part of the 20th century, zeolites were often looked upon as a geological curiosity, but they are now known to be widespread throughout the world in sedimentary and igneous deposits and in soils (Chapters 6-12). The application of natural zeolites has greatly expanded since the first zeolite volume. Chapter 15 details the use of natural zeolites for removal of ammonium ions, heavy metals, radioactive cations, and organic molecules from natural waters, wastewaters, and soils. Similarly, Chapter 16 describes the use of natural zeolites as building blocks and cements in the building industry, Chapter 17 outlines their use in solar energy storage, heating, and cooling applications, and Chapter 18 describes their use in a variety of agricultural applications, including as soil conditioners, slow-release fertilizers, soil-less substrates, carriers for insecticides and pesticides, and remediation agents in contaminated soils.

Waste-Based Zeolite

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Author : Mihir Kumar Purkait
Publisher : Elsevier
ISBN 13 : 0443223173
Total Pages : 284 pages
Book Rating : 4.4/5 (432 download)

Book Synopsis Waste-Based Zeolite by : Mihir Kumar Purkait

Download or read book Waste-Based Zeolite written by Mihir Kumar Purkait and published by Elsevier. This book was released on 2024-05-28 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Waste-Based Zeolite: Synthesis and Environmental Applications focuses on the use of waste-based materials to fabricate zeolite and its subsequent use in environmental applications. It presents recent progress in zeolite synthesis using wastes products such as fly ash, steel slag, biomass waste, water treatment plant sludge, and municipal waste, among others. It discusses the application of waste-based zeolite for environmental applications such as biodiesel production, as well as considering techniques for recovering spent zeolite. Many industries produce substantial quantities of waste material comprising various hazardous constituents that lead to pollution and threaten the environment. However, such waste can often be a rich source of precursor ingredients for zeolite synthesis, and waste-based zeolites could potentially provide an economically and environmentally viable alternative to commercially available zeolites. This book illuminates this fascinating avenue of research. Investigates the synthesis of waste-based zeolites and their application for environmental remediation Covers the classification, structure, and characterization techniques of waste-based zeolites Discusses waste-based zeolites as a potential catalyst for biofuel production Considers the regeneration analysis and recovery of spent zeolite material

Coal Gasification and Its Applications

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Author : David A. Bell
Publisher : William Andrew
ISBN 13 : 1437778518
Total Pages : 414 pages
Book Rating : 4.4/5 (377 download)

Book Synopsis Coal Gasification and Its Applications by : David A. Bell

Download or read book Coal Gasification and Its Applications written by David A. Bell and published by William Andrew. This book was released on 2010-12-08 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Skyrocketing energy costs have spurred renewed interest in coal gasification. Currently available information on this subject needs to be updated, however, and focused on specific coals and end products. For example, carbon capture and sequestration, previously given little attention, now has a prominent role in coal conversion processes.This book approaches coal gasification and related technologies from a process engineering point of view, with topics chosen to aid the process engineer who is interested in a complete, coal-to-products system. It provides a perspective for engineers and scientists who analyze and improve components of coal conversion processes.The first topic describes the nature and availability of coal. Next, the fundamentals of gasification are described, followed by a description of gasification technologies and gas cleaning processes. The conversion of syngas to electricity, fuels and chemicals is then discussed. Finally, process economics are covered. Emphasis is given to the selection of gasification technology based on the type of coal fed to the gasifier and desired end product: E.g., lower temperature gasifiers produce substantial quantities of methane, which is undesirable in an ammonia synthesis feed. This book also reviews gasification kinetics which is informed by recent papers and process design studies by the US Department of Energy and other groups, and also largely ignored by other gasification books.• Approaches coal gasification and related technologies from a process engineering point of view, providing a perspective for engineers and scientists who analyze and improve components of coal conversion processes • Describes the fundamentals of gasification, gasification technologies, and gas cleaning processes • Emphasizes the importance of the coal types fed to the gasifier and desired end products • Covers gasification kinetics, which was largely ignored by other gasification books - Provides a perspective for engineers and scientists who analyze and improve components of the coal conversion processes - Describes the fundamentals of gasification, gasification technologies, and gas cleaning processes - Covers gasification kinetics, which was largely ignored by other gasification books

Minerals as Advanced Materials II

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Author : S V Krivovichev
Publisher : Springer Science & Business Media
ISBN 13 : 3642200184
Total Pages : 424 pages
Book Rating : 4.6/5 (422 download)

Book Synopsis Minerals as Advanced Materials II by : S V Krivovichev

Download or read book Minerals as Advanced Materials II written by S V Krivovichev and published by Springer Science & Business Media. This book was released on 2011-12-01 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a collection of papers that are devoted to various aspects of interactions between mineralogy and material sciences. It will include reviews, perspective papers and original research papers on mineral nanostructures, biomineralization, micro- and nanoporous mineral phases as functional materials, physical and optical properties of minerals, etc. Many important materials that dominate modern technological development were known to mineralogists for hundreds of years, though their properties were not fully recognized. Mineralogy, on the other hand, needs new impacts for the further development in the line of modern scientific achievements such as bio- and nanotechnologies as well as by the understanding of a deep role that information plays in the formation of natural structures and definition of natural processes. It is the idea of this series of books to provide an arena for interdisciplinary discussion on minerals as advanced materials.

Some Studies of the Conversion of Waste Fly Ash from Huntly Power Station Into NaP1 Zeolite

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Author : Matthew Allan Hillary
Publisher :
ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.:/5 (155 download)

Book Synopsis Some Studies of the Conversion of Waste Fly Ash from Huntly Power Station Into NaP1 Zeolite by : Matthew Allan Hillary

Download or read book Some Studies of the Conversion of Waste Fly Ash from Huntly Power Station Into NaP1 Zeolite written by Matthew Allan Hillary and published by . This book was released on 2002 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: