Coal Feed-Dependent Variation in Fly Ash Chemistry in a Single Pulverized-Combustion Unit

James C. Hower; John G. Groppo; Shelley D. Hopps; Tonya D. Morgan; Heileen Hsu-Kim; Ross K. Taggart

doi:10.3390/min12091071

Coal Feed-Dependent Variation in Fly Ash Chemistry in a Single Pulverized-Combustion Unit

James C. Hower, John G. Groppo, Shelley D. Hopps, Tonya D. Morgan, Heileen Hsu-Kim, Ross K. Taggart

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Four suites of fly ash, all generated at the same power plant, were selected for the study of the distribution of rare earth elements (REE). The fly ashes represented two runs of single-seam/single-mine coals and two runs of run-of-mine coals representing several coal seams from several mines. Plots of the upper continental crust-normalized REE, other parameters derived from the normalization, and the principal components analysis of the derived REE parameters (including the sum of the lanthanides plus yttrium and the ratio of the light to heavy REE) all demonstrated that the relatively rare earth-rich Fire Clay coal-derived fly ashes have a different REE distribution, with a greater concentration of REE with a relative dominance of the heavy REE, than the other fly ashes. Particularly with the Fire Clay coal-derived fly ashes, there is a systematic partitioning of the overall amount and distribution of the REE in the passage from the mechanical fly ash collection through to the last row of the electrostatic precipitator hoppers.

Original language	English
Article number	1071
Journal	Minerals
Volume	12
Issue number	9
DOIs	https://doi.org/10.3390/min12091071
State	Published - Sep 2022

Bibliographical note

Publisher Copyright:
© 2022 by the authors.

Funding

The current study is based upon work supported by the Department of Energy, Office of Fossil Energy and Carbon Management under Award Number DE-FE0032054. The 1999 and 2012 collections were funded by grants from the Commonwealth of Kentucky to the Center for Applied Energy Research. The collection and the original analyses of the 2014 and 2016 samples sets were completed as part of U.S. Department of Energy contract DE-FE0026952 and National Science Foundation grants CBET-1510965 and CBET-1510861 to Duke University and the University of Kentucky, respectively.

Funders	Funder number
National Science Foundation (NSF)	CBET-1510965, CBET-1510861
Michigan State University-U.S. Department of Energy (MSU-DOE) Plant Research Laboratory	DE-FE0026952
University of Kentucky
COMMONWEALTH OF KENTUCKY
Office of Fossil Energy and Carbon Management	DE-FE0032054

Keywords

coal combustion
critical elements
lanthanides
sustainability

ASJC Scopus subject areas

Geotechnical Engineering and Engineering Geology
Geology

Access to Document

10.3390/min12091071

Cite this

@article{a6e7a273084b4f85b1b8cf5959815daa,

title = "Coal Feed-Dependent Variation in Fly Ash Chemistry in a Single Pulverized-Combustion Unit",

abstract = "Four suites of fly ash, all generated at the same power plant, were selected for the study of the distribution of rare earth elements (REE). The fly ashes represented two runs of single-seam/single-mine coals and two runs of run-of-mine coals representing several coal seams from several mines. Plots of the upper continental crust-normalized REE, other parameters derived from the normalization, and the principal components analysis of the derived REE parameters (including the sum of the lanthanides plus yttrium and the ratio of the light to heavy REE) all demonstrated that the relatively rare earth-rich Fire Clay coal-derived fly ashes have a different REE distribution, with a greater concentration of REE with a relative dominance of the heavy REE, than the other fly ashes. Particularly with the Fire Clay coal-derived fly ashes, there is a systematic partitioning of the overall amount and distribution of the REE in the passage from the mechanical fly ash collection through to the last row of the electrostatic precipitator hoppers.",

keywords = "coal combustion, critical elements, lanthanides, sustainability",

author = "Hower, {James C.} and Groppo, {John G.} and Hopps, {Shelley D.} and Morgan, {Tonya D.} and Heileen Hsu-Kim and Taggart, {Ross K.}",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors.",

year = "2022",

month = sep,

doi = "10.3390/min12091071",

language = "English",

volume = "12",

number = "9",

}

TY - JOUR

T1 - Coal Feed-Dependent Variation in Fly Ash Chemistry in a Single Pulverized-Combustion Unit

AU - Hower, James C.

AU - Groppo, John G.

AU - Hopps, Shelley D.

AU - Morgan, Tonya D.

AU - Hsu-Kim, Heileen

AU - Taggart, Ross K.

PY - 2022/9

Y1 - 2022/9

N2 - Four suites of fly ash, all generated at the same power plant, were selected for the study of the distribution of rare earth elements (REE). The fly ashes represented two runs of single-seam/single-mine coals and two runs of run-of-mine coals representing several coal seams from several mines. Plots of the upper continental crust-normalized REE, other parameters derived from the normalization, and the principal components analysis of the derived REE parameters (including the sum of the lanthanides plus yttrium and the ratio of the light to heavy REE) all demonstrated that the relatively rare earth-rich Fire Clay coal-derived fly ashes have a different REE distribution, with a greater concentration of REE with a relative dominance of the heavy REE, than the other fly ashes. Particularly with the Fire Clay coal-derived fly ashes, there is a systematic partitioning of the overall amount and distribution of the REE in the passage from the mechanical fly ash collection through to the last row of the electrostatic precipitator hoppers.

AB - Four suites of fly ash, all generated at the same power plant, were selected for the study of the distribution of rare earth elements (REE). The fly ashes represented two runs of single-seam/single-mine coals and two runs of run-of-mine coals representing several coal seams from several mines. Plots of the upper continental crust-normalized REE, other parameters derived from the normalization, and the principal components analysis of the derived REE parameters (including the sum of the lanthanides plus yttrium and the ratio of the light to heavy REE) all demonstrated that the relatively rare earth-rich Fire Clay coal-derived fly ashes have a different REE distribution, with a greater concentration of REE with a relative dominance of the heavy REE, than the other fly ashes. Particularly with the Fire Clay coal-derived fly ashes, there is a systematic partitioning of the overall amount and distribution of the REE in the passage from the mechanical fly ash collection through to the last row of the electrostatic precipitator hoppers.

KW - coal combustion

KW - critical elements

KW - lanthanides

KW - sustainability

UR - http://www.scopus.com/inward/record.url?scp=85138736539&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85138736539&partnerID=8YFLogxK

U2 - 10.3390/min12091071

DO - 10.3390/min12091071

M3 - Article

AN - SCOPUS:85138736539

VL - 12

JO - Minerals

JF - Minerals

IS - 9

M1 - 1071

ER -

Coal Feed-Dependent Variation in Fly Ash Chemistry in a Single Pulverized-Combustion Unit

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this