Download or read book Solid Mineral Fuels Major and Minor Elements in Hard Coal Ash and Coke Ash Wavelength Dispersive X Ray Fluorescence Spectrometric Method written by British Standards Institute Staff and published by . This book was released on 1912-08-31 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid fuels, Coal, Coke, Coal products, Chemical analysis and testing, Determination of content, Ash determination, Combustion test methods, Gravimetric analysis, Test equipment
Download or read book ASTM D 4326 11 written by ASTM International and published by . This book was released on 2011 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Determination of Major and Minor Elements in the Ash of Solid Mineral Fuels method by Flame Atomic Absorption Spectrometry written by and published by . This book was released on 1983 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Analysis of Mineral Matter in Coals by X ray Fluorescence written by Martin Berman and published by . This book was released on 1968 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Occurrence and Distribution of Potentially Volatile Trace Elements in Coal written by R. R. Ruch and published by . This book was released on 1974 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Elements in Coal written by Dalway J. Swaine and published by Butterworth-Heinemann. This book was released on 2013-10-22 with total page 293 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trace Elements in Coal focuses on the compositions, reactions, and properties of trace elements in coal. The book first discusses the origin of trace elements in coal. The formation of peat; geological and geochemical aspects of coal seams; geology of Australian coals; constitution of coal; history of trace elements in coal; and coal mining in Australia are discussed. The text also clarifies the mode of occurrence of trace elements in coal. The identification of minerals in coal; silicon-rich minerals; carbonate minerals; sulfide minerals; lignites and brown coals; and phosphates are discussed. The book then underscores the methods of analysis. Inductively coupled plasma atomic emission spectrometry; atomic absorption spectrometry; spark source mass spectrometry; and neuron activation analysis are described. The text also focuses on the contents of trace elements in coal; comparisons of coal with shale and soil; relationship of radioactivity and coal; and relevance of trace elements in coal. The book is a good source of data for readers wanting to study the trace elements in coal.
Download or read book Spectrochemical Analyses of Coal Ash for Trace Elements written by Roy F. Abernethy and published by . This book was released on 1969 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Elements in Coal and Coal Combustion Residues written by Robert F. Keefer and published by CRC Press. This book was released on 2020-10-25 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: Trace Elements in Coal and Coal Combustion Residues focuses on trace metal chemistry of coal and coal combustion residues. Special emphasis is placed on management of coal combustion residues in electric power plants and the influence of coal and associated residues on soils, plants, water, and animals. Topics covered include a brief summary of research sponsored by Electric Power Research Institute, environmental pollution from coal combustion plants in low-rainfall regions, accumulation of trace elements in freshwater mussels near a power plant, testing to evaluate fossil fuel wastes by chemicals and isotopes, transport of metals from coal piles and ash impoundments, leachability and toxicity of metals in fly ash, and plant absorption of chemicals from ash. The book will be a useful reference for environmental and reclamation consultants, environmental engineers, toxicologists, environmental regulatory personnel, officials with electric power utilities and water treatment plants, and soil scientists.
Download or read book Direct Analysis of Coal by Total Reflection X ray Fluorescence Spectrometry written by and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The application of coal accounts for the 45% of the world’s electrical energy. With new stringent requirements regarding emission, various elements (critical trace elements As, Cr, Ni, Pb and Mn) are under scrutiny. They may be released into the atmosphere during coal mining, combustion and utilization. The development of new methods of techniques for the determination of these elements has become a necessity. Typically, coal analysis involves ashing followed by digestion .of the ash with a mixture of acids and subsequent analysis of the solution by inductively coupled plasma optical emission spectrometer (ICP-OES). This method is time consuming and may result in loss of some elements as volatile species. Alternative methods for coal analysis include coal slurry analysis by graphite furnace atomic absorption spectrometry (GF- AAS) and ICP-OES I inductively coupled plasma mass spectrometer (ICP-MS). Direct analysis of coal can also be performed using classical wavelength dispersive X-ray fluorescence spectrometry and energy dispersive X-ray fluorescence spectrometry techniques but these have limitations at the trace levels. This study investigates the possibility of whether total reflection X-ray spectrometry (TXRF) can be used as an alternative method for the determination of trace elements in coal by the direct analysis of coal slurries. Coal certified reference materials, were prepared as fine suspensions (slurries) of dry milled material and N,N-dimethyl formamide and Triton X-100. An internal standard was added for the quantification of the coal material using the TXRF technique. Dispersion of particles deposited on the disc was also studied, by obtaining scanning electron microscope images of the samples deposited on the discs using three different techniques for deposition. Spectral overlaps were investigated to determine the capability of the deconvolution software employed and evaluate the internal standard element that could be used. The measurement results obtained showed that the TXRF technique is a suitable technique for the direct analysis of coal prepared as suspension of fine material, without the need for closely matched calibration standards. The sample droplets deposited as 5 μL or 10 μL were shown to be presented to the instrument as thin film requiring no further matrix correction. Lutetium as internal standard permitted the quantification of a wide range of analytes
Download or read book Trace Elements in Coal written by Vlado Valković and published by . This book was released on 1983 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Trace Elements in Coal written by Robert M. Davidson and published by . This book was released on 1996 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Coal Spectroscopy written by Henk Meuzelaar and published by Springer Science & Business Media. This book was released on 2013-12-14 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past decade has witnessed major advances in our understanding of the chemical composition, structure, and reactivity of the complex organic-rich fossil matter known as "coal. " Nevertheless, important scientific questions concerning molecular weight distributions, degree of crosslinking, typical duster sizes, type of interconnecting bridges, the possible role of a "mobile phase," and the nature of organic sulfur forms remain topics of heated debate. Moreover, there appears to be a notable lack of consensus regarding the overall direction and goals of structural elucidation work. Is it worthwhile to study whole coal samples, or should we separate out the various, more or less well-defined, maceral and mineral constituents before attempting to describe the structural and compositional features of coal at the molecular Ievel? Second, should there be more emphasis on key structural features and average statistical parameters, or is it necessary to identify individual chemical structures in considerable detail? From the developments of the past decade it is clear that advanced spectroscopic techniques are playing an increasingly important role in resolving difficult questions with regard to the chemical structure and composition of coal. Moreover, it has become equally clear that no single spectroscopic approach can provide all the answers but multiple techniques need to be used in a highly integrated and synergistic manner.
Download or read book Elemental Analysis Of Coal And Its By products Proceedings Of The Conference written by George Vourvopoulos and published by World Scientific. This book was released on 1992-04-30 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rare Elements in Coal written by Roy Franklin Abernethy and published by . This book was released on 1963 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solid Mineral Fuels Determination of Total Fluorine in Coal Coke and Fly Ash written by British Standards Institute Staff and published by . This book was released on 1916-12-31 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coal, Coke, Solid fuels, Mathematical calculations, Chemical analysis and testing, Determination of content, Carbon, Hydrogen, Nitrogen, Sulfur, Oxygen
Download or read book Impact of Mineral Impurities in Solid Fuel Combustion written by R. Gupta and published by Springer Science & Business Media. This book was released on 1999-10-31 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains papers presented at the Engineering Foundation Conference on mineral matter in fuels held on November 2-7, 1997 in Kona, Hawaii. The conference is one of a continuing series that was initiated by the CEGB Mar- wood Engineering Laboratories in 1963. The conference was to be eventually organised by the Engineering Foundation as the need for multi-disciplinary work related to c- trolling ash effects in combustors became apparent. The conference covers both the science and the applications. The papers also present case histories, particularly for current fuel technologies, developments in advanced technologies for power generation and mathematical modelling of these processes. Developments since 1963 have been slow, but steady, due to the complexity of the chemical and physical processes involved. However, the research presented here displays great improvement in our understanding of the mechanisms by which mineral matter will influence fuel use. Steve Benson from EERC presented a review and current status of issues related to ash deposition in coal combustion and gasification. The application of new analytical tools, which have been detailed in the previous conferences, is presented. These include CCSEM, as well as new techniques for char- terising sintering of ash, such as TMA, image analysis, X-ray diffraction crystallography and thermal analysis. The new analytical techniques were extended to encompass widely differing fuels such as biomass. Ole H Larsen from ELSAM Denmark presented a review of these advanced techniques.
Download or read book Mineral Matter and Ash in Coal written by Karl Spyros Vorres and published by . This book was released on 1986 with total page 560 pages. Available in PDF, EPUB and Kindle. Book excerpt:
