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Measuring Graphitic Carbon and Crystalline Minerals in Coals and Bottom Ashes

Published online by Cambridge University Press:  06 March 2019

David L. Wertz
Affiliation:
Dept, of Chemistry & Center for Coal Product Research University of Southern Mississippi Hattiesburg, MS 39406-5043
Leo W. Collins
Affiliation:
Dept, of Chemistry & Center for Coal Product Research University of Southern Mississippi Hattiesburg, MS 39406-5043
Franz Froelicher
Affiliation:
Dept, of Chemistry & Center for Coal Product Research University of Southern Mississippi Hattiesburg, MS 39406-5043
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Abstract

The use of coal, as either a primary energy source or as a source of feedstock chemicals, has been complicated by the noxious and toxic chemical species formed in its gaseous effluents and also by the huge quantities of ash vhich result from its processing. Both the noxious gases and the ash have been the subjects of Federal legislations.

X-ray powder patterns (XRPP), composed of atom-pair and self x~ray scattering and the diffraction produced by crystalline phases, have long been used to investigate coals and particularly their combustion ashes (1-3). Over twenty different crystalline phases have recently been reported to exist in certain lignite fly ash (3). Analysis of the crystalline phases has typically been emphasized in previous papers involving coals and ashes, but the amorphous scattering has been given little treatment.

Type
IV. Quantitative and Qualitative XRD Phase Analysis
Copyright
Copyright © International Centre for Diffraction Data 1987

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References

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