Download or read book Synthesis of Zeolite from Coal Fly Ash and Its Ion Exchange Properties written by Chong Wee Gan and published by . This book was released on 2009 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Ion Exchange Properties of Zeolite Prepared from Coal Fly Ash written by Muhamad Hisyamuddin Mazlan and published by . This book was released on 2012 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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:
Download or read book Properties and Application of Zeolitized Fly Ash written by Arian Steenbruggen and published by . This book was released on 1999 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Synthesis of Zeolite from Coal Fly Ash with Aluminum Dross Using Alkali Fusion written by Napasawan Khawnuan and published by . This book was released on 2011 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal fly ash (CFA) and aluminum dross are industrial wastes that required proper treatment and disposal. Several studies have been focusing on reusing CFA to produce zeolites; a porous crystalline materials with various applications. Nonetheless, the applicability of aluminum dross in zeolite synthesis has yet to be determined. In this study, CFA and aluminum dross were used for the synthesis of zeolite by akaline fusion. Aluminum oxide, a commonly used aluminum source, was also tested for comparison. Optimal condition of zeolite synthesis was determined based on characteristics of the products such as cation exchange capacity (CEC). Zeolite A was generated in this study. In the case of aluminum dross, optimal synthesis condition was obtained at 600 ̊C fusion temperature followed by crystallization at 80 ̊C. Although the observed CEC was relatively lower than those of the zeolites synthesized from aluminum oxide, their CEC values were still comparable. The cadmium and methylene blue (MB) adsorptions of the synthesized zeolites with high CEC values (P680, P780, D680, and D780) were then investigated. Among the three isotherm models including linear regression, Langmuir isotherm, and Freundlich isotherm, the data from cadmium adsorption by the synthesized zeolites fitted well with the Freundlich isotherm. On the contrary, MB adsorption could not be fitted with any models used in this study. These results suggest that zeolite A can be obtained from CFA and aluminum dross, and its capability in cadmium and MB removal was similar to the zeolite produced from aluminum oxide.
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.
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.
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
Download or read book Synthetic Zeolites written by S. P. Zhdanov and published by CRC Press. This book was released on 1990 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ion Exchange Technologies written by Ayben Kilislioglu and published by IntechOpen. This book was released on 2012-11-07 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains information about the technological development of ion exchange in their application for industrial processes. Widely used and well known fields of ion exchange like chromatography and electromembrane technology are described in this book with experimental details. Designing new materials for nanotechnology and nanomaterials as ion exchanger are also explained by experimental proofs. Ion exchange book is suitable not only for postgraduate students but also for researchers in chemistry, biochemistry and chemical technology.
Download or read book Bioresource Utilization and Management written by Hrudayanath Thatoi and published by CRC Press. This book was released on 2021-10-14 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for exploration, conservation, and sustainable utilization of bioresources is undeniable for the survival and growth of mankind. This new book throws light on new and recent research on and development of effective strategies for sustainable utilization of bioresources using modern tools and techniques to help meet this challenge. This volume addresses the utilization of bioresources in therapeutics, in biofuel, in agriculture, and in environmental protection. Beginning with the diverse potential applications of bioresources in food, medicine, and cosmetics, the volume goes on to address the various different underutilized bioresources and their sustainable uses. It discusses important advances in biofuel and patents that highlight recent developments that address the energy crises and the continuously fluctuating cost of petroleum. It explores new renewable energy sources from bioresources and their sustainable utilization in the bioenergy and biofuel industry. Several chapters focus on the sustainable utilization of bioresources in the agricultural sector. The volume considers that developing countries have huge agricultural resources that could be employed for production of value-added byproducts for the sustainable development of a bio-based economy. The book discusses efficient use of underexploited natural bioresources, new chemical approaches for the generation of novel biochemicals, and the applications of genetics approaches for bioresource conservation and production of value-added products. Further, strategies for the production of biopesticides utilizing bioresources are also discussed.
Download or read book New Trends in Ion Exchange Studies written by Selcan Karakus and published by BoD – Books on Demand. This book was released on 2018-11-07 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers new systems in technology that have developed our knowledge of ion exchange. This book discusses ion exchange resins to enhance cell growth; anion exchange membrane; nanosystems in ion exchange and ion exchange in environmental applications. The ion exchange system is used in bionanotechnology, cosmetic industry and water treatment.
Download or read book XVIII International Coal Preparation Congress written by Vladimir Litvinenko and published by Springer. This book was released on 2016-10-21 with total page 1165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gathers technical and scientific articles by leading experts from 15 countries and originally presented at the world’s most prestigious forum on coal preparation: the XVIII International Coal Preparation Congress. Topics addressed include: the mineral resources basis of the coal industry; problems and prospects of development in the coal industry; crushing, grinding, screening and classification processes used at sorting plants; coal processing and briquette factories; review of plant designs and operations used around the world; new developments in dense-medium separators, water-based separation processes, froth flotation and dewatering; technologies and equipment for the dry separation of coal; coal deep processing technologies and equipment; energy generation as an area of coal deep processing; and simulation and optimization software for separation processes.In general, the future of coal around the world is defined by its competitiveness. As the cheapest form of fuel (comparatively speaking), coal undoubtedly continues to be in high demand around the world.
Download or read book Synthesis of Higher Grade Fly Ash Zeolite X From Fly Ash Via Three Step Fusion written by Bhagwanjee Jha and published by . This book was released on 2013 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: Several researchers have established the fusion of fly ash-NaOH mixtures at 450°C to 900°C. The fly ash gets partially converted to zeolite X when the fused ash is further treated in a hydrothermal system. However, such a solid residue (the end product) exhibits a low cation-exchange capacity. A culprit of such a deficiency in zeolite is improper contact between the NaOH and the fly ash particles during their fusion. To enhance the degree of fusion, in the present study we attempted to demonstrate a three-step fusion technique that does not favor any further treatment in a hydrothermal system. Observed changes in the characteristics (cation exchange capacity, pore volume, pore area, mineralogy, and thermal stability) of the end product of three-step fusion corresponding to an NaOH/fly ash ratio equal to 1.0 proves the suitability of this fusion technique for the synthesis of a better grade of zeolite X (viz., Na-X and Na-Y).
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.
Download or read book Fly Ash Zeolite Catalyst Support for Fischer Tropsch Synthesis written by Adam Campen and published by . This book was released on 2012 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation research aimed at evaluating a fly ash zeolite (FAZ) catalyst support for use in heterogeneous catalytic processes. Gas phase Fischer-Tropsch Synthesis (FTS) over a fixed-bed of the prepared catalyst/FAZ support was identified as an appropriate process for evaluation, by comparison with commercial catalyst supports (silica, alumina, and 13X). Fly ash, obtained from the Wabash River Generating Station, was first characterized using XRD, SEM/EDS, particle size, and nitrogen sorption techniques. Then, a parametric study of a two-step alkali fusion/hydrothermal treatment process for converting fly ash to zeolite frameworks was performed by varying the alkali fusion agent, agent:flyash ratio, fusion temperature, fused ash/water solution, aging time, and crystallization time. The optimal conditions for each were determined to be NaOH, 1.4 g NaOH: 1 g fly ash, 550 °C, 200 g/L, 12 hours, and 48 hours. This robust process was applied to the fly ash to obtain a faujasitic zeolite structure with increased crystallinity (40 %) and surface area (434 m 2 /g). Following the modification of fly ash to FAZ, ion exchange of H+ for Na+ and cobalt incipient wetness impregnation were used to prepare a FTS catalyst. FTS was performed on the catalysts at 250-300 °C, 300 psi, and with a syngas ratio H2 :CO = 2. The HFAZ catalyst support loaded with 11 wt% cobalt resulted in a 75 % carbon selectivity for C5 - C18 hydrocarbons, while methane and carbon dioxide were limited to 13 and 1%, respectively. Catalyst characterization was performed by XRD, N2 sorption, TPR, and oxygen pulse titration to provide insight to the behavior of each catalyst. Overall, the HFAZ compared well with silica and 13X supports, and far exceeded the performance of the alumina support under the tested conditions. The successful completion of this research could add value to an underutilized waste product of coal combustion, in the form of catalyst supports in heterogeneous catalytic processes.
