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Author : David H. Birlingmair
Publisher :
ISBN 13 :
Total Pages : 16 pages
Book Rating : 4.:/5 (274 download)
Download or read book Physical and Physiochemical Removal of Sulfur from Coal written by David H. Birlingmair and published by . This book was released on 1978 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 218 pages
Book Rating : 4.:/5 (727 download)
Download or read book Removal of Organic and Inorganic Sulfur from Ohio Coal by Combined Physical and Chemical Process. Final Report written by and published by . This book was released on 1989 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project consisted of three sections. In the first part, the physical cleaning of Ohio coal by selective flocculation of ultrafine slurry was considered. In the second part, the mild oxidation process for removal of pyritic and organic sulfur.was investigated. Finally, in-the third part, the combined effects of these processes were studied. The physical cleaning and desulfurization of Ohio coal was achieved using selective flocculation of ultrafine coal slurry in conjunction with froth flotation as flocs separation method. The finely disseminated pyrite particles in Ohio coals, in particular Pittsburgh No. 8 seam, make it necessary to use ultrafine ( -500 mesh) grinding to liberate the pyrite particles. Experiments were performed to identify the ''optimum'' operating conditions for selective flocculation process. The results indicated that the use of a totally hydrophobic flocculant (FR-7A) yielded the lowest levels of mineral matters and total sulfur contents. The use of a selective dispersant (PAAX) increased the rejection of pyritic sulfur further. In addition, different methods of floc separation techniques were tested. It was found that froth flotation system was the most efficient method for separation of small coal flocs.
Author : Colorado School of Mines. Chemical and Petroleum Refining Engineering Department
Publisher :
ISBN 13 :
Total Pages : 116 pages
Book Rating : 4.:/5 ( download)
Download or read book Removal of Sulfur from Coal by Treatment with Hydrogen written by Colorado School of Mines. Chemical and Petroleum Refining Engineering Department and published by . This book was released on 1973 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : B.K. Parekh
Publisher : Elsevier
ISBN 13 : 1483290271
Total Pages : 645 pages
Book Rating : 4.4/5 (832 download)
Download or read book Processing and Utilization of High-Sulfur Coals V written by B.K. Parekh and published by Elsevier. This book was released on 2013-10-22 with total page 645 pages. Available in PDF, EPUB and Kindle. Book excerpt: Utilization of high sulfur coals is becoming increasingly difficult in view of tighter environmental regulations being imposed around the world. To meet the challenge of utilizing high sulfur coals without damaging the environment, many scientists and engineers around the world are engaged in developing novel technologies. In the U.S.A. alone, the federal government has spent about five billion dollars to achieve that goal. This conference, like its predecessors, emphasizes desulfurization with papers on physical and chemical cleaning as well as post-treatment and fluid-bed combustion technologies. Of the 45 papers submitted, 15 papers deal with physical cleaning and 7 deal with chemical cleaning of coal, suggesting that a major emphasis is still be placed on pre-cleaning of coal. The post-treatment technologies, being developed with the support of U.S. federal and state government agencies, emphasize removal of both SOx and NOx gases. The book will be of particular interest and benefit to researchers, graduate students and other people involved in coal processing, characterization and utilization; public policy making and administration related to energy conservation, economic development, and environmental protection; and investors in industry and new technology.
Author : R.A. Meyers
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (841 download)
Download or read book Chemical Removal of Nitrogen and Organic Sulfur from Coal written by R.A. Meyers and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Allen Meyers
Publisher : Marcel Dekker
ISBN 13 :
Total Pages : 280 pages
Book Rating : 4.:/5 (42 download)
Download or read book Coal Desulfurization written by Robert Allen Meyers and published by Marcel Dekker. This book was released on 1977 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sam Stuart
Publisher : Butterworth-Heinemann
ISBN 13 : 1483162087
Total Pages : 366 pages
Book Rating : 4.4/5 (831 download)
Download or read book The Problems of Sulphur written by Sam Stuart and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Problems of Sulphur discusses all aspects of the problems associated with sulfur in coal. The book is divided into three parts. Part 1 addresses the forms of sulfur in coal and evaluates processes directed at the chemical removal of sulphur. Part 2 expands on this to look at alternative means of removing sulfur both physically and biologically, sulfur removal during the combustion of coal and flue gas desulfurization processes. Part 3 looks at the role of sulphates in the atmosphere from the points of view of their formation, transport and deposition and of their effects on health, materials and the atmosphere. The book will be of value to engineers, environmentalists, and chemists.
Author : Michael Prior
Publisher :
ISBN 13 :
Total Pages : 33 pages
Book Rating : 4.:/5 (186 download)
Download or read book Physical and Chemical Cleaning of Coal to Remove Sulphur written by Michael Prior and published by . This book was released on 1977 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Author : Srikanta Srikantapura
Publisher :
ISBN 13 :
Total Pages : 246 pages
Book Rating : 4.:/5 (347 download)
Download or read book Removal of Trace Elements from Coal by Advanced Physical and Chemical Techniques written by Srikanta Srikantapura and published by . This book was released on 1996 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1040 pages
Book Rating : 4.X/5 (2 download)
Download or read book Coal Desulfurization written by and published by . This book was released on 1979 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : TRW Systems Group
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (389 download)
Download or read book Chemical Removal of Nitrogen and Organic Sulfur from Coal written by TRW Systems Group and published by . This book was released on 1971 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Thomas D. Wheelock
Publisher :
ISBN 13 :
Total Pages : 360 pages
Book Rating : 4.:/5 (44 download)
Download or read book Coal Desulfurization written by Thomas D. Wheelock and published by . This book was released on 1977 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on a symposium sponsored by the Division of Fuel Chemistry at the 173rd meeting of the American Chemical Society.
Author :
Publisher :
ISBN 13 :
Total Pages : 202 pages
Book Rating : 4.:/5 (126 download)
Download or read book Proceedings of Symposium on Biological and Chemical Removal of Sulfur and Trace Elements in Coal and Lignite written by and published by . This book was released on 1982 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert J. Herhal
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (112 download)
Download or read book Assessment of Physical Coal Cleaning Practices for Sulfur Removal written by Albert J. Herhal and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States Coal Research Office
Publisher :
ISBN 13 :
Total Pages : 99 pages
Book Rating : 4.:/5 (841 download)
Download or read book Removal of Sulfur from Coal by Treatment with Hydrogen, Phase I: The Effect of Operating Variables and Raw Material Properties, Research and Development Report No. 77, Interim Report written by United States Coal Research Office and published by . This book was released on 1973 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ming Le
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (25 download)
Download or read book Biological Coal Desulfurization written by Ming Le and published by . This book was released on 1991 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur removal from coal before combustion is of considerable interest to avoid emission of oxides of sulfur(SOx). Chemical and physical methods have been developed for removing the inorganic sulfur component in coal. This component is generally associated with pyrites(FeS2). However, no commercial methods have been developed for the removal of the organic sulfur conponent. This study describes microbial methods for removing organically bound sulfur from coal. The specific goals of this study were to ascertain whether a robust biologically active population such as activated sludge biomass can remove organic sulfur from coal and to devise sulfur analytical methods that are less cumbersome than the accepted standards for screening research results. Dibenzothiophene is used in isolating microorganisms that use sulfur as the sole source for growth. It was found that about 55% sulfur can be removed by activated sludge in shaker flasks from a coal which was previously treated to remove inorganic sulfur(IBC-108). A no cycling leaching reactor with activated sludge removed 50% sulfur from the same type of coal. Almost 72% sulfur is removed by A-i, S-Dl, T3-2 and Ar-i mixed cultures. It was also found that about 25 to 29% sulfur can be removed by different cultures from a commercially prepared washed coal in which the pyritic and organic sulfur have not been altered. The application of ion-chromatography and atomic spectrometry in analyzing sulfate, pyritic sulfur, organic sulfur and total sulfur following ASTM extraction can achieve easier and quicker sulfur determinations without sacrificing accuracy and reproducibility.
