Processing and Utilization of High-Sulfur Coals V

Processing and Utilization of High-Sulfur Coals V
Author: B.K. Parekh
Publisher: Elsevier
Total Pages: 645
Release: 2013-10-22
Genre: Technology & Engineering
ISBN: 1483290271

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.

Processing and Utilization of High-sulfur Coals IV

Processing and Utilization of High-sulfur Coals IV
Author: Patrick R. Dugan
Publisher: Elsevier Publishing Company
Total Pages: 852
Release: 1991
Genre: Technology & Engineering
ISBN: 9780444882639

These proceedings comprise peer-reviewed articles summarizing the most recent progress made by many of the leaders of high-sulfur coal research and development in the past two years. Four papers cover the conversion of coals to liquid and gaseous products both as a means of removing sulfur and for increasing the utility and value of the coal. Improvements in coal cleaning technology by application of biological, physical and chemical processes, as well as combinations of these methods are reported. Methods of beneficiation including the emerging electrochemical and ultrasonic approaches are also presented. Several papers cover the fundamentals and applications of flotation as a technique for separating the sulfur from the carbon content of coal once the sulfur has been liberated from the coal matrix. One paper describes a microbial process for removing solubilized iron and sulfur (as sulfate) that have been liberated from coal. Eight contributions deal with the various aspects of cleaning potential atmospheric contaminants from coal combustion gasses.The book will be of particular interest and benefit to researchers, graduate students and all persons involved in coal production, processing and utilization; public policy making and administration related to energy conservation, economic development, and environmental protection; and investors in industry and new technology.

Processing and Utilization of High-sulfur Coals III

Processing and Utilization of High-sulfur Coals III
Author: Richard Markuszewski
Publisher: Elsevier Publishing Company
Total Pages: 840
Release: 1990
Genre: Science
ISBN:

This volume is a collection of peer-reviewed articles providing a summary of the most recent accomplishments by many of the leaders of high-sulfur coal research and development. Improvements in coal cleaning technology by application of either physical, chemical, or biological processes, and new developments in both the froth flotation and oil agglomeration methods of cleaning are reported. Innovative electrostatic and aerodynamic methods are described for cleaning coal, and progress is noted in the development of coal desulfurization by either caustic leaching, oxidative leaching, microbial treatment, or low-temperature pyrolysis. Papers also included in this book concern the capture of sulfur oxides either during or following the combustion of coal; sorbent characterization and the effects of different factors and/or additives on sorbent utilization; the capture of sulfur oxides in various types of combustion systems, including pulverized coal, slagging, fluidized bed and magnetohydrodynamic systems. Recent technical developments are reported for sorbent injection in flue-gas ducts as a means of capturing sulfur oxides.

Coal Flotation and Fine Coal Utilization

Coal Flotation and Fine Coal Utilization
Author: J. Laskowski
Publisher: Elsevier
Total Pages: 386
Release: 2001-07-04
Genre: Science
ISBN: 0080529240

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.

Coal

Coal
Author: National Research Council
Publisher: National Academies Press
Total Pages: 183
Release: 2007-12-21
Genre: Science
ISBN: 030911022X

Coal will continue to provide a major portion of energy requirements in the United States for at least the next several decades. It is imperative that accurate information describing the amount, location, and quality of the coal resources and reserves be available to fulfill energy needs. It is also important that the United States extract its coal resources efficiently, safely, and in an environmentally responsible manner. A renewed focus on federal support for coal-related research, coordinated across agencies and with the active participation of the states and industrial sector, is a critical element for each of these requirements. Coal focuses on the research and development needs and priorities in the areas of coal resource and reserve assessments, coal mining and processing, transportation of coal and coal products, and coal utilization.

Coal Desulfurization

Coal Desulfurization
Author: S. K. Kawatra
Publisher: Taylor & Francis
Total Pages: 376
Release: 2001
Genre: Science
ISBN: 9789056996963

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.

Advanced Coal Preparation and Beyond

Advanced Coal Preparation and Beyond
Author: S. Komar Kawatra
Publisher: CRC Press
Total Pages: 497
Release: 2020-01-27
Genre: Technology & Engineering
ISBN: 1000763447

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.

Coal Science

Coal Science
Author: J.A. Pajares
Publisher: Elsevier
Total Pages: 875
Release: 1995-08-29
Genre: Science
ISBN: 0080544630

This volume contains papers presented at the 8th International Conference on Coal Science, held in Oviedo, Spain, September 10-15, 1995. Volume I contains papers dealing with Fundamentals and General Aspects, Combustion and Gasification and Pyrolysis and Carbonization. Volume II covers papers discussing Liquefaction and Hydropyrolysis and Coal and the Environment.The scope of topics covered will give the reader a state-of-the-art impression of coal characterization and depolymerization, coal-derived carbons, coal carbonization and liquefaction, and the progress towards making coal an environmentally acceptable fuel during its combustion in electricity production. The use of modern physicochemical characterization techniques has advanced knowledge of coal composition and structure enormously in the last twenty years, and it is hoped that coal will enter into the next millenium as a clean and efficient fuel.

Atmospheric Fluidized Bed Coal Combustion

Atmospheric Fluidized Bed Coal Combustion
Author: M. Valk
Publisher: Elsevier
Total Pages: 479
Release: 2013-10-22
Genre: Technology & Engineering
ISBN: 1483290506

The use of fluidized bed coal combustion technology has been developed in the past decade in The Netherlands with a view to expanding the industrial use of coal as an energy supply. Various research groups from universities, institutes for applied science and from boiler industries participated and contributed to this research area. Comprehensive results of such recent experimentation and development work on atmospheric fluidized bed combustion of coal are covered in this volume. Each chapter, written by an expert, treats one specific subject and gives both the theoretical background as well as experimental results and verifications. Though the contents deal primarily with coal combustion, much information proved applicable and relevant for the combustion or incineration of other solid fuels and waste in a fluidized bed. Results of extended research and fundamental backgrounds are presented in order to provide the designer and operator of fluidized bed combustors with more complete and systematic information needed for an optimal design and operation. The design and operating experience of a full scale fluidized bed boiler are discussed and compared with the results of theoretical and experimental research on pilot plant scale.