skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Chemistry and petrology of paired feed coal and combustion ash from anthracite-burning stoker boilers

Authors:
ORCiD logo; ; ;
Publication Date:
Sponsoring Org.:
USDOE
OSTI Identifier:
1416613
Grant/Contract Number:
FE0026952
Resource Type:
Journal Article: Publisher's Accepted Manuscript
Journal Name:
Fuel
Additional Journal Information:
Journal Volume: 199; Journal Issue: C; Related Information: CHORUS Timestamp: 2018-01-11 08:38:07; Journal ID: ISSN 0016-2361
Publisher:
Elsevier
Country of Publication:
United Kingdom
Language:
English

Citation Formats

Hower, James C., Hood, Madison M., Taggart, Ross K., and Hsu-Kim, Heileen. Chemistry and petrology of paired feed coal and combustion ash from anthracite-burning stoker boilers. United Kingdom: N. p., 2017. Web. doi:10.1016/j.fuel.2017.03.007.
Hower, James C., Hood, Madison M., Taggart, Ross K., & Hsu-Kim, Heileen. Chemistry and petrology of paired feed coal and combustion ash from anthracite-burning stoker boilers. United Kingdom. doi:10.1016/j.fuel.2017.03.007.
Hower, James C., Hood, Madison M., Taggart, Ross K., and Hsu-Kim, Heileen. Sat . "Chemistry and petrology of paired feed coal and combustion ash from anthracite-burning stoker boilers". United Kingdom. doi:10.1016/j.fuel.2017.03.007.
@article{osti_1416613,
title = {Chemistry and petrology of paired feed coal and combustion ash from anthracite-burning stoker boilers},
author = {Hower, James C. and Hood, Madison M. and Taggart, Ross K. and Hsu-Kim, Heileen},
abstractNote = {},
doi = {10.1016/j.fuel.2017.03.007},
journal = {Fuel},
number = C,
volume = 199,
place = {United Kingdom},
year = {Sat Jul 01 00:00:00 EDT 2017},
month = {Sat Jul 01 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1016/j.fuel.2017.03.007

Citation Metrics:
Cited by: 1work
Citation information provided by
Web of Science

Save / Share:
  • Results are presented for regime adjustment of feed systems for a TPP-210A boiler for the burning of highly concentrated culm-anthracite coal dust. As compared with nonoptimal regimes, optimal regimes of high-concentration-feed systems improve the economy of the boiler by 1.7% on average.
  • In this work, the petrology and chemistry of fly ashes produced in a Spanish power plant from the combustion of complex pulverized feed blends made up of anthracitic/meta-anthracitic coals, petroleum, and natural coke are investigated. It was found that the behavior of fly ash carbons derived from anthracitic coals follows relatively similar patterns to those established for the carbons from the combustion of bituminous coals. Fly ashes were sampled in eight hoppers from two electrostatic precipitator (ESP) rows. The characterization of the raw ashes and their five sieved fractions (from {gt}150 to {lt}25 {mu}m) showed that glassy material, quartz, oxides,more » and spinels in different proportions are the main inorganic components. As for the organic fraction, the dominant fly ash carbons are anisotropic carbons, mainly unburned carbons derived from anthracitic vitrinite. The concentration of Se and Hg increased in ashes of the second ESP row, this increase being related to the higher proportion of anisotropic unburned carbons, particularly those largely derived from anthracitic vitrinite in the cooler ashes of the ESP (second row) and also related to the decrease in the flue gas temperature. This suggests that the flue gas temperature plays a major role in the concentration of mercury for similar ratios of unburned carbons. It was also found that Hg is highly concentrated in the medium-coarser fractions of the fly ashes ({gt} 45 {mu}m), there being a positive relationship between the amount of these carbons, which are apparently little modified during the combustion process, in the medium-coarse fractions of the ashes and the Hg retention. According to the results obtained, further research on this type of fly ash could be highly productive. 28 refs., 10 figs., 8 tabs.« less
  • Cited by 9
  • A Kentucky cyclone-fired unit burns coal and tire-derived fuel, sometimes in combination with petroleum coke. A parallel pulverized combustion (pc) unit at the same plant burns the same coal, without the added fuels. The petrology, chemistry, and sulfur isotope distribution in the fuel and resulting combustion products was investigated for several configurations of the fuel blend. Zinc and Cd in the combustion products are primarily contributed from the tire-derived fuel, the V and Ni are primarily from the petroleum coke, and the As and Hg are probably largely from the coal. The sulfur isotope distribution in the cyclone unit ismore » complicated due to the varying fuel sources. The electrostatic precipitator (ESP) array in the pc unit shows a subtle trend towards heavier S isotopic ratios in the cooler end of the ESP.« less
  • The Department of Defense (DOD) has 28 installations that use coal and produces about 120,000 short tons of ash per year. Coal ash may he classified as hazardous waste if regulatory tests show leaching of heavy metals and other elements, which would make disposal a more complicated and expensive process. However, the hazardous nature of coal ash remains unclear because current toxicity tests fail to effectively characterize the elemental distribution and chemical solubility of trace metals in the landfill environment. This study investigated the hazardous potential of industrial coal-fired boiler wastes and outlined disposal regulations and feasible disposal options. Coalmore » and ash samples from three Illinois sites were examined and the leaching characteristics of the ash samples analyzed with specially designed laboratory extraction procedures in association with inductively coupled plasma-atomic emission spectroscopy analysis (ICP-AES). Regulated elements including Ag, As, Ba, Cd, Cr, Hg, Pb, and Se were shown to remain in largely insoluble forms while elements such as B and S leached at higher levels. Experimental results obtained in this research will help operators of coal-fired boilers select coal types and disposal options to curtail the leaching of potentially toxic levels of inorganic contaminants.« less