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Author : Warrack G. Willson
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (623 download)
Download or read book Application of Liquefaction Processes to Low-rank Coals written by Warrack G. Willson and published by . This book was released on 1979 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (727 download)
Download or read book Direct Liquefaction of Low-rank Coals written by and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Co-processing of low-rank coals (LRCs) with petroleum resids under mild conditions may produce a product that extends petroleum refinery feeds with a partially coal-derived material. These co-processing products may also provide a lower-cost way to introduce coal-derived materials into the commercial market. In this staged process, the petroleum resid acts as a solvent, aiding in the solubilization of the coal during the first stage, and both the dissolved coal and the resid are upgraded during a second-stage catalytic hydrogenation. Another method of upgrading coal in a liquefaction process is the ChemCoal Process. The process uses chemical methods to transform coal into clean solid and liquid products. It features low-severity conversion of coal in a phenolic solvent, using an alkali promotor and carbon monoxide as the reductant. Oil agglomeration has been used to reduce the ash and mineral matter in bituminous coals to obtain a product with increased heating value, reduced moisture, and lower sulfur content. This method can be used to produce a clean coal feedstock for liquefaction. During agglomeration, an oil is used to preferentially wet the organic phases of the coal, and water is used to wet the minerals, resulting in a separation of ash and water from the coal. The primary objective of this project is to expand the scientific and engineering data base of LRC liquefaction by investigating direct liquefaction processes that will produce the most competitive feedstocks or liquid fuels. The work effort which was proposed for the second year of this cooperative agreement dealt primarily with co-processing and the ChemCoal Process.
Author :
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (727 download)
Download or read book Direct Liquefaction of Low-rank Coals. Annual Technical Report, April 1, 1987--March 31, 1988 Including Quarterly Technical Progress Report, January--March 1988 written by and published by . This book was released on 1988 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: Co-processing of low-rank coals (LRCs) with petroleum resids under mild conditions may produce a product that extends petroleum refinery feeds with a partially coal-derived material. These co-processing products may also provide a lower-cost way to introduce coal-derived materials into the commercial market. In this staged process, the petroleum resid acts as a solvent, aiding in the solubilization of the coal during the first stage, and both the dissolved coal and the resid are upgraded during a second-stage catalytic hydrogenation. Another method of upgrading coal in a liquefaction process is the ChemCoal Process. The process uses chemical methods to transform coal into clean solid and liquid products. It features low-severity conversion of coal in a phenolic solvent, using an alkali promotor and carbon monoxide as the reductant. Oil agglomeration has been used to reduce the ash and mineral matter in bituminous coals to obtain a product with increased heating value, reduced moisture, and lower sulfur content. This method can be used to produce a clean coal feedstock for liquefaction. During agglomeration, an oil is used to preferentially wet the organic phases of the coal, and water is used to wet the minerals, resulting in a separation of ash and water from the coal. The primary objective of this project is to expand the scientific and engineering data base of LRC liquefaction by investigating direct liquefaction processes that will produce the most competitive feedstocks or liquid fuels. The work effort which was proposed for the second year of this cooperative agreement dealt primarily with co-processing and the ChemCoal Process.
Author :
Publisher :
ISBN 13 :
Total Pages : 15 pages
Book Rating : 4.:/5 (682 download)
Download or read book Ion Exchange and Adsorption on Low Rank Coals for Liquefaction written by and published by . This book was released on 1994 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objectives of this program are to study the application of catalysts and the catalysis of liquefaction of low rank coals. Ion exchange and adsorption techniques are being used or modified to incorporate catalytically active metals (Fe, Co, Ni and Mo) in relatively small (100-2000 ppM) quantities into coal samples. Relative oil yields are being determined by PETC and Auburn University workers as collaborators to establish the effectiveness of the catalyst incorporation techniques. It is hoped that these techniques will provide highly active forms of the catalyst in low concentrations to minimize the need for metals recovery. A two step preparation of the coal is used to (1) remove material which both limits oil conversion and prepares for the addition of exchangeable catalyst, and (2) add catalytically active material which enhances the conversion of the coal matter to the oil fraction in the processing.
Author : S. Parkash
Publisher :
ISBN 13 :
Total Pages : 46 pages
Book Rating : 4.3/5 (91 download)
Download or read book Application of Coal Petrography in the Liquefaction of Subbituminous Coals and Lignites written by S. Parkash and published by . This book was released on 1983 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
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ISBN 13 :
Total Pages : 486 pages
Book Rating : 4.0/5 ( download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-11 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Darrell Duayne Whitehurst
Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.3/5 (91 download)
Download or read book Coal Liquefaction written by Darrell Duayne Whitehurst and published by . This book was released on 1980 with total page 404 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 : Beak Consultants
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (123 download)
Download or read book Liquefaction of Low Rank Coals written by Beak Consultants and published by . This book was released on 1978 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Martin L. Gorbaty
Publisher : Academic Press
ISBN 13 : 1483191567
Total Pages : 313 pages
Book Rating : 4.4/5 (831 download)
Download or read book Coal Science written by Martin L. Gorbaty and published by Academic Press. This book was released on 2013-10-22 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal Science, Volume 2 presents and evaluates the fundamental scientific areas involved with the structure, reactivity, and utilization of coal. This book reviews the coal's inorganic structure and reactivity and the role that ionic bonding plays in coal's chemical and physical structure and reactivity. Organized into four chapters, this volume begins with an overview of the area of mineral matter in coal and a critical survey of many specific aspects that are most intriguing scientifically. This text then examines the role of the solvent in the initial stage of coal liquefaction. Other chapters consider the primary products of decomposed plant matter, which are transformed into the various ranks of coals through a series of evolutionary changes. The final chapter deals with solvent extraction, which is the most commonly used methods for studying the chemical properties of coal. This book is a valuable resource for chemists, engineers, and research workers.
Author :
Publisher :
ISBN 13 :
Total Pages : 13 pages
Book Rating : 4.:/5 (727 download)
Download or read book Utilization of Low Rank Coals in Liquefaction written by and published by . This book was released on 1991 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the current MITRE study is to estimate the cost of the coal derived liquid products that result from processing low rank coals in the Wilsonville and HRI CTSL configurations. The resultant cost of liquids is then compared to liquids produced from bituminous coals. The methodology used to accomplish the above objective was to utilize the MITRE coal liquefaction cost model to assess the overall technical and economic performance of low rank coals in both the Wilsonville and HRI configurations. Actual test data from Wilsonville and HRI was used as the basis for these analyses. This test data is modified to simulate complete resid recycle extinction and to standardize the operating performance of the deashing unit. This corrected yield data is then used in the simulation models to predict the overall performance and economics of a conceptual commercial coal liquefaction facility. 9 refs., 7 figs.
Author :
Publisher :
ISBN 13 :
Total Pages : 886 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 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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ISBN 13 :
Total Pages : 92 pages
Book Rating : 4.:/5 (263 download)
Download or read book Frauen setzen neue Prioritäten written by and published by . This book was released on 1996 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. H. Gronhovd
Publisher : William Andrew
ISBN 13 :
Total Pages : 632 pages
Book Rating : 4.:/5 (41 download)
Download or read book Low-rank Coal Technology written by G. H. Gronhovd and published by William Andrew. This book was released on 1982 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Liquefaction written by and published by . This book was released on 1977-10 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Fred A. Curtis
Publisher : Elsevier
ISBN 13 : 148318949X
Total Pages : 1051 pages
Book Rating : 4.4/5 (831 download)
Download or read book Energy Developments: New Forms, Renewables, Conservation written by Fred A. Curtis and published by Elsevier. This book was released on 2013-09-17 with total page 1051 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Developments: New Forms, Renewables, Conservation is a collection of papers that discusses alternative energy sources. In discussing these energy sources, the text considers factors such as technical, economic, and human dimensions. The first part of the text presents articles that cover forms of energy, such as the feasibility of coal gasification and electric power from salinity gradients by reverse electrodialysis. Next, the book reviews materials about renewable forms of energy that include genetically improved hardwoods as a potential energy source and heat pump investigations for northern climate applications. In the last part, the text provides studies that deal with energy conservation, such as shared savings financing for energy efficiency and consumer information, and government energy conservation incentive programs. The book will be of use to scientists, engineers, and technicians involved in the research, development, and implementation of alternative energy technology.
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ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.:/5 (319 download)
Download or read book ERDA Research Abstracts written by and published by . This book was released on 1975 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
