Characterization of stoker ash from the combustion of high-lanthanide coal at a Kentucky bourbon distillery
作者： James C. Hower , Elizabeth Cantando , Cortland F. Eble , Gregory C. Copley
DOI: 10.1016/J.COAL.2019.103260
关键词:
摘要: Abstract Lanthanide- and yttrium-bearing minerals were examined by transmission electron microscopy - energy-dispersive spectroscopy (TEM-EDS) related diffraction techniques in the combustion ash produced from burning of an eastern Kentucky coal a stoker boiler. The feed has nearly 2000 ppm over 1400-ppm lanthanides + Y Sc In one section, zircon with trace amounts was noted. Hafnium noted preliminary scanning EDS examination zircon. TEM procedure, Hf peaks overlap other and, thus, presence could not be confirmed. Both La-, Ce-, Nd-monazite Ce-bearing Ti-Fe mineral observed ash. latter corresponds both composition aspects pattern to crichtonite or davidite loveringite, all within Dana-class group.
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