Author: Pat M. BrownPublisher:
ISBN:
Category : Clay wastes
Languages : en
Pages : 16
Book Description
Dewatering of Coal-clay Waste Slurries from Preparation Plants
Author: Pat M. BrownPublisher:
ISBN:
Category : Clay wastes
Languages : en
Pages : 16
Book Description
A Study of the Oxidation of Coal
Author: Horace Chamberlain PorterPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 32
Book Description
Natural Oxidation of Coal
Author: Robert M. DavidsonPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 84
Book Description
Effect of Low-temperature Oxidation on the Hydrogen in Coal and the Change in Weight of Coal on Drying
Author: Sidney Hershberg KatzPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 16
Book Description
Oxidizing Pittsburgh-bed Coal
Author: Milan J. KovalikPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 38
Book Description
Effects of Oxidation Upon the Carbonizing Properties of Pocahontas No. 3- and No. 4-bed Coals from Eastgulf, Raleigh County, W. Va
Author: Joseph Dana DavisPublisher:
ISBN:
Category : Coal
Languages : en
Pages : 22
Book Description
Coal Geology
Author: Larry ThomasPublisher: John Wiley & Sons
ISBN: 1118385721
Category : Science
Languages : en
Pages : 713
Book Description
Coal Geology, second edition, offers a thoroughly revised and updated edition of this popular book which provides a comprehensive overview of the field of coal geology. Coal Geology covers all aspects of coal geology in one volume, bridging the gap between the academic aspects and the practical role of geology in the coal industry. The object of the book is to provide the reader with a with a description of the origins of coal together with the physical and chemical properties of coal and coal petrology before proceeding to cover all areas of coal exploration, production and use. Bridges the gap between academic aspects of coal geology and the practical role of geology in the coal industry Examines historical and stratigraphical geology, together with mining, environmental issues, geophysics and hydrogeology and the marketing of coal Defines worldwide coal resource classifications and methods of calculation Addresses the alternative uses of coal as a source of energy, together with the environmental implications of coal usage Includes improved illustrations including a colour section Offers a global approach covering expanding fields in America, China and India The truly global approach, drawn from the international experiences of the author, recognizes the growing role of coal use in emerging markets. With fully revised coverage of the latest modelling techniques, environmental legislation, equipment and recording methods, the second edition offers a truly invaluable resource for anyone studying, researching or working in the field of coal geology, geotechnical and mining engineering and environmental science.
Geology of Coal Fires
Author: Glenn B. StracherPublisher: Geological Society of America
ISBN: 0813741181
Category : Science
Languages : en
Pages : 304
Book Description
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.
Oxidation of Coal. [100 References].
![Oxidation of Coal. [100 References]. PDF](https://books.google.com/books/content/images/frontcover/MHt4swEACAAJ?fife=w80-h100)
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Certain organic compounds are oxidized more readily than others. The ease with which an organic substance will oxidize depends on the functional groups present in the molecule. Oxidation of coal is affected by incorporation of oxygen functional groups, such as the peroxide, the hydroxyl, the aldehyde, the carbonyl, the carboxyl, the ether linkage, and the methoxyl groups. Once oxygen has been combined with an organic molecule, further oxidation may occur more readily. Compounds with oxygen functional groups attached are more susceptible to further oxidation than their progenitors. For example, alcohol and acetaldehyde oxidize more readily than ethane, phenol and naphthol more easily than benzene and naphthalene, and benzaldehyde more readily than toluene. Saturated and purely aromatic hydrocarbons are more difficult to oxidize than their derivatives containing oxygen functional groups. The formation of peroxide appears to be one of the initial steps of coal oxidation; it can lead then to the formation of other oxygen functional groups. The weathering of coal increases the concentration of the oxygen functional groups, and some reduction of carbon content results, technological quality of coal changes, water content increases, and alkali-soluble products similar to the humic acids form, as well as water-soluble lower molecular weight acids. In the early stages of oxidation oxygen is being added to the coal bulk composition and water is lost, while during the later stages of humification of coal, CO/sub 2/, CO, and H/sub 2/O evolve. The oxidation proceeds along the periphery of the macromolecule clusters in coal and affects the C--C bonds, rupturing the aromatic rings. Further oxidation reactions are described.
Author: John B. Gayle