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Download or read book Oil Agglomeration of Coal at a Moderate Shear Rate written by and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (683 download)
Download or read book Development of a Gas-promoted Oil Agglomeration Process written by and published by . This book was released on 1996 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a selective oil agglomeration process for cleaning coal, fine-size particles are suspended in water and treated with a water-immiscible hydrocarbon which can range from pentane to heavy fuel oil. Vigorous agitation is applied to disperse the oil and to produce frequent contacts between oil-coated particles. In Part 1 of this series of papers, it was shown that a definite amount of air had to be present in a laboratory mixing unit which produced a moderate shear rate in order to form compact, spherical agglomerates in an aqueous suspension of moderately hydrophobic coal using heptane or hexadecane as an agglomerate. In this paper, the effects of different amounts of air including dissolved air are discussed. The results indicate that a small amount of air will trigger the process of agglomeration, and even the air dissolved in water under equilibrium conditions at room temperature and pressure is sufficient to promote agglomeration provided it is released from solution.
Author : S. Komar Kawatra
Publisher : CRC Press
ISBN 13 : 1000763447
Total Pages : 497 pages
Book Rating : 4.0/5 (7 download)
Download or read book Advanced Coal Preparation and Beyond written by S. Komar Kawatra and published by CRC Press. This book was released on 2020-01-27 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: Updating content from the author’s 2001 book Coal Desulfurization, this new title focuses on CO2 sequestration and utilization. It includes information on the theory and practical approaches to CO2 capture and recent advances in the use of sequestered CO2. Avoiding these pollutants requires either forgetting about the 250 billion tons of coal reserves the United States possesses or capturing and utilizing the pollutants in a profitable and environmentally responsible fashion. The book covers postcombustion and precombustion capture approaches for coal, and postcombustion capture can be generalized to many other fuels. Recent practical implementations at full-scale power facilities around the world are discussed. The book covers sequestering CO2 via underground, oceanic, biological, and other long-term CO2 storage methods. It also includes recent advances in utilizing CO2 for enhanced oil recovery, advances in storage with depleted oil and gas reservoirs and deep saline aquifers, and additional topics. The book also examines specific applications of pure CO2 and covers chemical conversion of CO2 to useful compounds. It answers questions like "Can we create methanol from coal?" or "Can we create ethanol from coal?" It is found that methanol and ethanol cannot be sustainably produced from coal power alone. However, oxalic acid can be created at a much lower energy cost than methanol or ethanol. Oxalic acid can be used to extract rare earths, which are not currently produced anywhere in the United States, but are typically concentrated in coal ash. Aimed at researchers and industry professionals in chemical, environmental, and energy engineering, this book provides insight and inspiration into capturing CO2 not merely as a response to regulatory pressure and climate change but as an inherently profitable and valuable venture.
Author : J. Laskowski
Publisher : Elsevier
ISBN 13 : 0080529240
Total Pages : 386 pages
Book Rating : 4.0/5 (85 download)
Download or read book Coal Flotation and Fine Coal Utilization written by J. Laskowski and published by Elsevier. This book was released on 2001-07-04 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: To stay profitable while complying with environmental regulations requires that the coal industry not only improve fine coal recovery but also finds better ways for its utilization. This is the first monograph on the processing of fine coal which recognizes that all unit operations that handle fine coal depend on coal surface properties, and which in one single volume provides a comprehensive introduction to coal surface chemistry, using it rigorously in treating coal flotation fundamentals and engineering, fine coal manipulation, pelletization and briquetting, and coal-water slurries. Readers involved in mineral processing, chemical engineering, mining and metallurgical engineering; technical personnel working for reagent suppliers; and scientists researching the field of coal surface chemistry, flotation and fine coal utilization will find this volume of great interest.
Author : S. K. Kawatra
Publisher : Taylor & Francis
ISBN 13 : 9789056996963
Total Pages : 376 pages
Book Rating : 4.9/5 (969 download)
Download or read book Coal Desulfurization written by S. K. Kawatra and published by Taylor & Francis. This book was released on 2001 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written to provide a comprehensive survey of the current state-of-the-art information in coal preparation, with particular emphasis on coal desulfrization. The primary audience for this book will be practising coal preparation engineers who need complete information about all of the coal preparation and desulphurization technologies that are available now, or that may be available in the future. It will also be valuable for coal researchers who need details and comparative data for cutting-edge technologies that are still under development. The main emphasis is on physical coal preparation, but chapters also include chemical and biological technologies that are under development, but not yet used in industrial practice. Along with the successful technologies, also included are details of processes and techniques that were attempted, but were subsequently abandoned, along with discussions of the reasons they were abandoned.
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ISBN 13 :
Total Pages : 586 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994 with total page 586 pages. Available in PDF, EPUB and Kindle. Book excerpt: Semiannual, with semiannual and annual indexes. References to all scientific and technical literature coming from DOE, its laboratories, energy centers, and contractors. Includes all works deriving from DOE, other related government-sponsored information, and foreign nonnuclear information. Arranged under 39 categories, e.g., Biomedical sciences, basic studies; Biomedical sciences, applied studies; Health and safety; and Fusion energy. Entry gives bibliographical information and abstract. Corporate, author, subject, report number indexes.
Author : Genadiy Pivnyak
Publisher : CRC Press
ISBN 13 : 0203332660
Total Pages : 360 pages
Book Rating : 4.2/5 (33 download)
Download or read book Technical and Geoinformational Systems in Mining written by Genadiy Pivnyak and published by CRC Press. This book was released on 2011-09-05 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: New trends of mineral deposits mining in the world consist of intensifying and concentration of mining operations. This is achieved with the help of new technical equipment that is more reliable, having greater service life and more available power. Consideration is given to quantity reduction of stopes and development workings together with t
Author : Wieslaw S. Blaschke
Publisher : Taylor & Francis
ISBN 13 : 9782884491396
Total Pages : 1034 pages
Book Rating : 4.4/5 (913 download)
Download or read book New Trends in Coal Preparation Technologies and Equipment written by Wieslaw S. Blaschke and published by Taylor & Francis. This book was released on 1995-09 with total page 1034 pages. Available in PDF, EPUB and Kindle. Book excerpt: First published in 2004. Routledge is an imprint of Taylor & Francis, an informa company.
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ISBN 13 :
Total Pages : 43 pages
Book Rating : 4.:/5 (685 download)
Download or read book Basic Principles and Mechanisms of Selective Oil Agglomeration. Fossil Energy Interim Report, October 1, 1983--September 30, 1992 written by and published by . This book was released on 1992 with total page 43 pages. Available in PDF, EPUB and Kindle. Book excerpt: Numerous agglomeration tests were conducted with several types of low-ash coal and graphite, high grade mineral pyrite, and other materials. Relatively pure hydrocarbons, including heptane and hexadecane, were used as agglomerants. Access of air to the system was controlled. Particle recovery by agglomeration was observed to depend on a number of system parameters. Among the most important parameters are the hydrophobicity of the particles and the oil dosage, so that the, recovery of solids per unit of oil administered is proportional to the hydrophobicity. The pH and ionic strength of the aqueous suspension affect particle recovery in different ways depending on the surface properties of the particles. On the other hand, the presence of air in the system generally improves particle recovery. The greatest effect of air was observed in a closely related study which showed that air had to be present to produce good agglomerates from a moderately hydrophobic coal in a mixer producing a lower shear rate. The rate of agglomeration was found to be much greater for a strongly hydrophobic coal than for a moderately hydrophobic coal, and the rate was observed to be proportional to the oil dosage. Also the rate was enhanced by the presence of air in the, system. For hydrophobic coals, the rate increased with increasing ionic strength of the aqueous medium, but it was not affected greatly by pH over a wide range. The separation of coal and pyrite particles by selective agglomeration was found to depend on the relative hydrophobicity of the materials, the oil dosage, and the properties of the aqueous medium.
Author : Lewis H. King
Publisher : Queen's Printer
ISBN 13 :
Total Pages : 50 pages
Book Rating : 4.3/5 (243 download)
Download or read book A Laboratory Study on the Agglomeration of Coal in the Presence of Plasticizing Agents at Moderate Temperatures and High Pressures written by Lewis H. King and published by Queen's Printer. This book was released on 1959 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Surendra K. Mishra
Publisher : William Andrew
ISBN 13 :
Total Pages : 480 pages
Book Rating : 4.:/5 (41 download)
Download or read book Fine Coal Processing written by Surendra K. Mishra and published by William Andrew. This book was released on 1987-12-31 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dave Osborne
Publisher : Elsevier
ISBN 13 : 085709730X
Total Pages : 787 pages
Book Rating : 4.8/5 (57 download)
Download or read book The Coal Handbook: Towards Cleaner Production written by Dave Osborne and published by Elsevier. This book was released on 2013-10-31 with total page 787 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal is an important fossil fuel resource for many nations due to its large remaining resources, relatively low production and processing cost and potential high energy intensity. Certain issues surround its utilisation, however, including emissions of pollutants and growing concern about climate change. The coal handbook: Towards cleaner production Volume 1 reviews the coal production supply chain from analysis to extraction and distribution.Part one explores coal characterisation and introduces the industrial use of coal as well as coal formation, petrography, reserves, sampling and analysis. Part two moves on to review coal extraction and preparation. Chapters highlight advances in coal mining technology, underground coal gas extraction, coal sizing, comminution and cleaning, and solid-liquid separation technologies for coal. Further chapters focus on economic factors affecting coal preparation, post-treatment of coal, coal tailings treatment, and the optimisation, simulation and control of coal preparation plants. Finally, part three considers aspects of the coal supply chain including the management approach and individual functions such as coal blending and homogenisation, transportation and handling along the entire supply chain.With its distinguished editor and international team of expert contributors, The coal handbook Volumes 1 and 2 is a comprehensive and invaluable resource for professionals in the coal mining, preparation, and utilisation industry, those in the power sector, including plant operators and engineers, and researchers and academics interested in this field. - Reviews the coal production supply chain from analysis to extraction and distribution - Explores coal characterisation, formation, petrography, reserves, sampling and analysis - Examines coal extraction and preparation and highlights advances in coal mining technology, underground coal gas extraction, coal sizing, comminution and cleaning, and solid-liquid separation technologies
Author : David Tyson
Publisher :
ISBN 13 :
Total Pages : 252 pages
Book Rating : 4.:/5 (238 download)
Download or read book An Analysis of the Kinetics for Oil Agglomeration of Coal written by David Tyson and published by . This book was released on 1990 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fujie Zhang
Publisher :
ISBN 13 :
Total Pages : 126 pages
Book Rating : 4.:/5 (333 download)
Download or read book On the Kinetics of the Oil Agglomeration of Coal written by Fujie Zhang and published by . This book was released on 1995 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Iowa State University. Department of Chemical Engineering
Publisher :
ISBN 13 :
Total Pages : 36 pages
Book Rating : 4.:/5 (318 download)
Download or read book Chemical Engineering Graduate Studies written by Iowa State University. Department of Chemical Engineering and published by . This book was released on 1999 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Botsaris
Publisher : CRC Press
ISBN 13 : 9780824778538
Total Pages : 468 pages
Book Rating : 4.7/5 (785 download)
Download or read book Interfacial Phenomena in Coal Technology written by Botsaris and published by CRC Press. This book was released on 1988-12-22 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: A different face of coal than that seen by miners. Focusses on the conversion of coal to a liquid and the clean utilization of coal. Among topics discussed are surface phenomena involved in the beneficiation processes, flotation and spherical agglomeration, the modification of coal-fluid interfaces,
Author :
Publisher :
ISBN 13 :
Total Pages : 616 pages
Book Rating : 4.3/5 (243 download)
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1994 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt:
