From in-situ coal to fly ash: a study of coal mines and power plants from Indiana |
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| Authors: | Maria Mastalerz James C Hower Agnieszka Drobniak Sarah M Mardon Grzegorz Lis |
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| Affiliation: | aIndiana Geological Survey, Indiana University, 611 North Walnut Grove, Bloomington, IN 47405, USA;bUniversity of Kentucky Center for Applied Energy Research, 2540 Research Park Drive, Lexington, KY 40511, USA;cDepartment of Geological Sciences, Indiana University, Bloomington, IN 47405, USA |
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| Abstract: | This paper presents data on the properties of coal and fly ash from two coal mines and two power plants that burn single-source coal from two mines in Indiana. One mine is in the low-sulfur (<1%) Danville Coal Member of the Dugger Formation (Pennsylvanian) and the other mines the high-sulfur (>5%) Springfield Coal Member of the Petersburg Formation (Pennsylvanian). Both seams have comparable ash contents (11%). Coals sampled at the mines (both raw and washed fractions) were analyzed for proximate/ultimate/sulfur forms/heating value, major oxides, trace elements and petrographic composition. The properties of fly ash from these coals reflect the properties of the feed coal, as well as local combustion and post-combustion conditions. Sulfur and spinel content, and As, Pb and Zn concentrations of the fly ash are the parameters that most closely reflect the properties of the source coal. |
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| Keywords: | Coal Fly ash Trace elements Indiana Mercury |
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