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Author :
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (49 download)
Download or read book Upgrading of Low-rank Coals written by and published by . This book was released on 1997 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
![Download Upgrading and Slurryfication [sic] of Low Rank Coals PDF Online Free](https://books.google.com/books/content/images/frontcover/7oRwuAAACAAJ?fife=w200-h370)
Author : Hiromoto Usui
Publisher :
ISBN 13 :
Total Pages : 176 pages
Book Rating : 4.:/5 (456 download)
Download or read book Upgrading and Slurryfication [sic] of Low Rank Coals written by Hiromoto Usui and published by . This book was released on 1999 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upgrading of Low-rank Coals written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (683 download)
Download or read book Upgrading Low Rank Coal Using the Koppelman Series C Process written by and published by . This book was released on 1998 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: Development of the K-Fuel technology began after the energy shortage of the early 1970s in the United States led energy producers to develop the huge deposits of low-sulfur coal in the Powder River Basin (PRB) of Wyoming. PRB coal is a subbituminous C coal containing about 30 wt % moisture and having heating values of about 18.6 megajoules/kg (8150 Btu/lb). PRB coal contains from 0.3 to 0.5 wt % sulfur, which is nearly all combined with the organic matrix in the coal. It is in much demand for boiler fuel because of the low-sulfur content and the low price. However, the low-heating value limits the markets for PRB coal to boilers specially designed for the high- moisture coal. Thus, the advantages of the low-sulfur content are not available to many potential customers having boilers that were designed for bituminous coal. This year about 250 million tons of coal is shipped from the Powder River Basin of Wyoming. The high- moisture content and, consequently, the low-heating value of this coal causes the transportation and combustion of the coal to be inefficient. When the moisture is removed and the heating value increased the same bundle of energy can be shipped using one- third less train loads. Also, the dried product can be burned much more efficiently in boiler systems. This increase in efficiency reduces the carbon dioxide emissions caused by use of the low-heating value coal. Also, the processing used to remove water and restructure the coal removes sulfur, nitrogen, mercury, and chlorides from the coal. This precombustion cleaning is much less costly than stack scrubbing. PRB coal, and other low-rank coals, tend to be highly reactive when freshly mined. These reactive coals must be mixed regularly (every week or two) when fresh, but become somewhat more stable after they have aged for several weeks. PRB coal is relatively dusty and subject to self-ignition compared to bituminous coals. When dried using conventional technology, PRB coal is even more dusty and more susceptible to spontaneous combustion than the raw coal. Also, PRB coal, if dried at low temperature, typically readsorbs about two- thirds of the moisture removed by drying. This readsorption of moisture releases the heat of adsorption of the water which is a major cause of self- heating of low-rank coals at low temperature.
Author : M. V. K. Chari
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (246 download)
Download or read book Thermal Upgrading of Low-rank Coal written by M. V. K. Chari and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Zhongyang Luo
Publisher : Woodhead Publishing
ISBN 13 : 0081009291
Total Pages : 367 pages
Book Rating : 4.0/5 (81 download)
Download or read book Low-rank Coals for Power Generation, Fuel and Chemical Production written by Zhongyang Luo and published by Woodhead Publishing. This book was released on 2017-06-22 with total page 367 pages. Available in PDF, EPUB and Kindle. Book excerpt: Low-Rank Coals for Power Generation, Fuel and Chemical Production provides a thorough introduction to lignite (brown coal) and subbituminous coals and explores how they can be used efficiently and economically in place of hard coal. The book examines the undesirable characteristics of low-quality coals, such as high moisture content, low calorific value, and aggressive ash characteristics, and the resulting refinements to standard technologies and practices required for successful combustion, gasification, and pyrolysis.The first part of this book provides a comprehensive and systematic review of the properties of low-rank coals and corresponding preparation methods, such as drying, cleaning, and upgrading. Power generation from low-rank coals is the focus of Part 2, with chapter topics ranging from high efficiency pulverized coal combustion and circulatingfluidized bed combustion to emerging areas such as chemical looping and oxyfuel combustion. The final contributions address the important subjects of coal-to-liquids,polygeneration and coke production using low-rank coals, as well as the critical issue of carbon capture and storage.This book is a valuable resource for power generation engineers and researchers seeking to maximize the opportunities provided by these cheaper coal feedstocks for efficient and environmentally compatible power generation. Presents the most in-depth treatment of low-rank coals available Addresses both power generation and fuel production Includes coverage that spans pulverized coal combustion and emerging technologies, such as CFBC, UCG, CLC, and oxyfuel combustion
Author : Glenn B. Stracher
Publisher : Geological Society of America
ISBN 13 : 0813741181
Total Pages : 304 pages
Book Rating : 4.8/5 (137 download)
Download or read book Geology of Coal Fires written by Glenn B. Stracher and published by Geological Society of America. This book was released on 2007-01-01 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Naturally burning coal fires and those ignited by human activities receive little attention from the media compared to other environmental hazards, but their study is gaining ground. Here, the world's leading experts present their research findings covering topics such as the gases generated in underground coal fires, the origin of gas-vent minerals and land-cover changes due to coal fires.
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ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.0/5 ( download)
Download or read book Proceedings written by and published by . This book was released on 1992 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 698 pages
Book Rating : 4.:/5 (31 download)
Download or read book Fossil Energy Update written by and published by . This book was released on 1981 with total page 698 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Upgraded Low-rank Coal User Guidelines written by and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Don L. Crawford
Publisher : CRC Press
ISBN 13 : 9780849345517
Total Pages : 240 pages
Book Rating : 4.3/5 (455 download)
Download or read book Microbial Transformations of Low Rank Coals written by Don L. Crawford and published by CRC Press. This book was released on 1992-09-24 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fifteen leading scientists active in research on the chemistry, microbiology, enzymology, and genetics of coal biotransformation summarize knowledge of the mechanisms by which bacteria and fungi metabolize the macromolecular structure of lignite coals. They also explore the potential for developing commercially viable biotransformations of low rank coals into useful chemicals and clean-burning liquid and gaseous fuels. Microbial Transformations of Low Rank Coals reviews the types of aerobic and anaerobic microbes known to transform fuel and discusses the relative potential of aerobic versus anaerobic organisms. Biochemical mechanisms used by microorganisms to solubilize, depolymerize, liquify, and gasify coal are examined. The book also reviews the potential for using microorganisms to remove organic sulfur from coal and the potential for using genetic engineering to improve coal biotransforming microorganisms.
Author : H. Huettenhain
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (254 download)
Download or read book Thermal Upgrading of Low-rank Coal written by H. Huettenhain and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 : 9781642240313
Total Pages : 358 pages
Book Rating : 4.2/5 (43 download)
Download or read book Low-Rank Coals written by and published by . This book was released on 2018-05 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of low quality coals has emerged in current years. A major strategic concern is that the rapid growth in hard coal production has resulted in a sharp fall in the reserves- to production ratios worldwide. As hard coals are depleting rapidly, the resulting price surge and supply risks are the key challenges facing many coal consuming countries. Moreover, coal market dynamics are also changing; this change in market dynamics has forced some coal importers to seek new sources of supply, with subbituminous coal having already begun to gain attention in world markets. Low quality coals thus have an important role to play in maintaining security of coal supply. In addition, since low quality coals are generally produced by surface mining, their production costs are much lower than hard coals that are extracted through underground operations. To this end, for instance, a number of high efficiency processes are under development in Australia, Germany, Japan and the USA. All these developments in power generation, CTL, UCG, drying and upgrading are likely to ensure a sustainable future for low quality coals. Low-rank Coals for Power Generation, Fuel and Chemical Production discusses the current status of utilization of low quality coals for power generation worldwide. It provides a comprehensive and systematic review of the properties of low-rank coals Power generation using low quality coals is dominated by Pulverised Coal Combustion (PCC) plants. Although the majority of PCC plants use subcritical technologies, a number of new plants have adopted supercritical steam conditions at large scale. This book will presents research results and reviews discussing the impact of coal characteristics, operational experience gained with low quality coals, and future trend of development. This book is a valuable information resource for power generation engineers and researchers seeking to maximize the opportunities provided by these cheaper coal feedstock for effective and eco-friendly power generation.
Author : European Commission European Commission
Publisher : Dictus Publishing
ISBN 13 : 9783844361858
Total Pages : 100 pages
Book Rating : 4.3/5 (618 download)
Download or read book Upgrading of High Moisture Low Rank Coal written by European Commission European Commission and published by Dictus Publishing. This book was released on 2013 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The C2H upgrade project developed a new process for upgrading high moisture low rank brown coals yielding two valuable products: - a H2-rich fuel gas which can be used for high efficient power generation in a combined cycle or as a natural gas substitute; - a pre-calcined feed for a cement clinker kiln consisting of CaO, CaSO4 and coal ash. The C2H upgrade process consists of two core reactors: (i) a steam gasifer with in situ CO2 capture by CaO, and (ii) a sorbent regenerator with the possibility to produce a separate CO2 stream. The project evaluated the necessary aspects of process development. Characterisation of coals and CaO-based sorbents: A European geological survey produced suitable locations for a C2H plant. A methodology for evaluation of calcium-based sorbents was developed. Pilot scale gasification: Testing on three different reactor types was successfully completed (ABFB, PBFB, Rotary Kiln). A H2-rich (>85 vol. %) and CO2-lean gas with low tar content (
Download or read book Pyrolysis and Catalytic Upgrading of Low-rank Coal Using a NiO/MgO–Al2O3 Catalyst written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shusheng Pang
Publisher : CRC Press
ISBN 13 : 1351000853
Total Pages : 210 pages
Book Rating : 4.3/5 (51 download)
Download or read book Drying of Biomass, Biosolids, and Coal written by Shusheng Pang and published by CRC Press. This book was released on 2019-03-14 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Drying of Biomass, Biosolids, and Coal: For Efficient Energy Supply and Environmental Benefits provides insight into advanced technologies and knowledge of the drying of biomass, biosolids, and coal in terms of improved efficiency, economics, and environmental impact. It comprehensively covers all the important aspects of drying for a variety of biomass, biosolids and coal resources. This book covers the drying of biomass, bio-solids and coal while also providing integration of the drying process with the energy system. Important issues in the commercial drying operations are tackled, including energy and exergy efficiencies, environmental impact, and potential safety concerns. It also assesses the performance of energy production plants in integration with biomass/coal drying to provide information for plant optimization. It offers in-depth analysis and data for process understanding and design, and analyzes the drying process’s effect on economics and the environment. This book is aimed at drying professionals and researchers, chemical engineers, industrial engineers, and manufacturing engineers. It will also be of use to anyone who is interested in the utilization of biomass, organic solid wastes, algae and low-rank coals for energy.
Author : Bruce G. Miller
Publisher : Elsevier
ISBN 13 : 0080961169
Total Pages : 697 pages
Book Rating : 4.0/5 (89 download)
Download or read book Clean Coal Engineering Technology written by Bruce G. Miller and published by Elsevier. This book was released on 2010-11-15 with total page 697 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concern over the effects of airborne pollution, green house gases, and the impact of global warming has become a worldwide issue that transcends international boundaries, politics, and social responsibility. The 2nd Edition of Coal Energy Systems: Clean Coal Technology describes a new generation of energy processes that sharply reduce air emissions and other pollutants from coal-burning power plants. Coal is the dirtiest of all fossil fuels. When burned, it produces emissions that contribute to global warming, create acid rain, and pollute water. With all of the interest and research surrounding nuclear energy, hydropower, and biofuels, many think that coal is finally on its way out. However, coal generates half of the electricity in the United States and throughout the world today. It will likely continue to do so as long as it's cheap and plentiful [Source: Energy Information Administration]. Coal provides stability in price and availability, will continue to be a major source of electricity generation, will be the major source of hydrogen for the coming hydrogen economy, and has the potential to become an important source of liquid fuels. Conservation and renewable/sustainable energy are important in the overall energy picture, but will play a lesser role in helping us satisfy our energy demands today. Dramatically updated to meet the needs of an ever changing energy market, Coal Energy Systems, 2nd Edition is a single source covering policy and the engineering involved in implementing that policy. The book addresses many coal-related subjects of interest ranging from the chemistry of coal and the future engineering anatomy of a coal fired plant to the cutting edge clean coal technologies being researched and utilized today. A 50% update over the first edition, this new book contains new chapters on processes such as CO2 capture and sequestration, Integrated Gasification Combined Cycle (IGCC) systems, Pulverized-Coal Power Plants and Carbon Emission Trading. Existing materials on worldwide coal distribution and quantities, technical and policy issues regarding the use of coal, technologies used and under development for utilizing coal to produce heat, electricity, and chemicals with low environmental impact, vision for utilizing coal well into the 21st century, and the security coal presents. Clean Liquids and Gaseous Fuels from Coal for Electric Power Integrated Gasification Combined Cycle (IGCC) systems Pulverized-Coal Power Plants Advanced Coal-Based Power Plants Fluidized-Bed Combustion Technology CO2 capture and sequestration
