Petrography and chemistry of high-carbon fly ash from the Shawnee Power Station, Kentucky
- Univ. of Kentucky, Lexington, KY (United States)
- Tennessee Valley Authority, Chattanooga, TN (United States)
The Shawnee power station in western Kentucky consists of ten 150-MW units, eight of which burn low-sulfur (< 1 wt %) eastern Kentucky and central West Virginia coal. The other units burn medium- and high-sulfur (> 1 wt %) coal in an atmospheric fluidized-bed combustion unit and in a research unit. The eight low-sulfur coal units were sampled in a 1992 survey of Kentucky utilities. Little between-unit variation is seen in the ash-basis major oxide and minor element chemistry. The carbon content of the fly ashes varies from 5 to 25 wt %. Similarly, the isotropic and anisotropic coke in the fly ash varies from 6% to 42% (volume basis). Much of the anisotropic coke is a thin-walled macroporous variety, but there is a portion that is a thick-walled variety similar to a petroleum coke.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 212184
- Journal Information:
- Energy Sources, Journal Name: Energy Sources Journal Issue: 1 Vol. 18; ISSN 0090-8312; ISSN EGYSAO
- Country of Publication:
- United States
- Language:
- English
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