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Title: Signatures of rare earth element distributions in fly ash derived from the combustion of Central Appalachian, Illinois, and Powder River basin coals

Abstract

We report the distribution of Rare Earth elements (REE) in coal-derived fly ashes can have distinctive patterns when fly ashes are produced from different coals within or between basins, such as the Pennsylvanian Class F fly ashes from the Illinois and Central Appalachian basins. Both the Fire Clay coal and a blend of a number of eastern Kentucky coals show strong Gd peaks and an H-type distribution in the Upper Continental Crust-corrected plots. The Fire Clay coal-derived ash has a higher heavy REE concentration than the blended coal-derived ash. The Illinois Basin-derived fly as has an overall lower REE concentration than the latter ashes. Class C fly ash derived from Powder River Basin coals has, with the exception of an Eu peak, a flatter distribution of REE and an overall L-type or indistinct H- versus L-type distribution. The signatures of the REE in fly ashes may be useful in predicting their behavior in the extraction of the REE; simple extrapolations from the basic concentrations and the predicted extraction percentages for ashes from different basins are not necessarily indicative of the actual distribution of the extracted REE.

Authors:
 [1];  [1];  [2];  [2]
+ Show Author Affiliations
  1. University of Kentucky, Lexington, KY (United States)
  2. Duke University, Durham, NC (United States)
Publication Date:
Research Org.:
Duke Univ., Durham, NC (United States); Univ. of Kentucky, Lexington, KY (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE); National Science Foundation (NSF)
OSTI Identifier:
1977126
Alternate Identifier(s):
OSTI ID: 1785033
Grant/Contract Number:  
FE0026952; CBET-1510965; CBET-1510861
Resource Type:
Accepted Manuscript
Journal Name:
Fuel
Additional Journal Information:
Journal Volume: 301; Journal Issue: C; Journal ID: ISSN 0016-2361
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; lanthanides; heavy rare earth elements; fly ash beneficiation; rare earth processing

Citation Formats

Hower, James C., Groppo, John G., Hsu-Kim, Heileen, and Taggart, Ross K. Signatures of rare earth element distributions in fly ash derived from the combustion of Central Appalachian, Illinois, and Powder River basin coals. United States: N. p., 2021. Web. doi:10.1016/j.fuel.2021.121048.
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Hower, James C., Groppo, John G., Hsu-Kim, Heileen, & Taggart, Ross K. Signatures of rare earth element distributions in fly ash derived from the combustion of Central Appalachian, Illinois, and Powder River basin coals. United States. https://doi.org/10.1016/j.fuel.2021.121048
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Hower, James C., Groppo, John G., Hsu-Kim, Heileen, and Taggart, Ross K. Thu . "Signatures of rare earth element distributions in fly ash derived from the combustion of Central Appalachian, Illinois, and Powder River basin coals". United States. https://doi.org/10.1016/j.fuel.2021.121048. https://www.osti.gov/servlets/purl/1977126.
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@article{osti_1977126,
title = {Signatures of rare earth element distributions in fly ash derived from the combustion of Central Appalachian, Illinois, and Powder River basin coals},
author = {Hower, James C. and Groppo, John G. and Hsu-Kim, Heileen and Taggart, Ross K.},
abstractNote = {We report the distribution of Rare Earth elements (REE) in coal-derived fly ashes can have distinctive patterns when fly ashes are produced from different coals within or between basins, such as the Pennsylvanian Class F fly ashes from the Illinois and Central Appalachian basins. Both the Fire Clay coal and a blend of a number of eastern Kentucky coals show strong Gd peaks and an H-type distribution in the Upper Continental Crust-corrected plots. The Fire Clay coal-derived ash has a higher heavy REE concentration than the blended coal-derived ash. The Illinois Basin-derived fly as has an overall lower REE concentration than the latter ashes. Class C fly ash derived from Powder River Basin coals has, with the exception of an Eu peak, a flatter distribution of REE and an overall L-type or indistinct H- versus L-type distribution. The signatures of the REE in fly ashes may be useful in predicting their behavior in the extraction of the REE; simple extrapolations from the basic concentrations and the predicted extraction percentages for ashes from different basins are not necessarily indicative of the actual distribution of the extracted REE.},
doi = {10.1016/j.fuel.2021.121048},
journal = {Fuel},
number = C,
volume = 301,
place = {United States},
year = {Thu May 27 00:00:00 EDT 2021},
month = {Thu May 27 00:00:00 EDT 2021}
}
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https://doi.org/10.1016/j.fuel.2021.121048
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