UTILIZATION OF LOW NOx COAL COMBUSTION BY-PRODUCTS

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Potomac Electric Power Company (PEPCo) Class F fly ash is the first material to be worked on in this project. A head sample was taken and a screen analysis performed. Each size fraction was evaluated for LOI content. Table 1 shows the distribution of the as-received material by size and LOI content. From the data, 80% of the as-received material is finer than 400 mesh and the LOI content goes from high at coarse fractions and decreases to a low at the finest size fraction. SEM chemical analysis identified the as-received fly ash to mainly consist of silica (46%), aluminum ... continued below

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16 pages

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HEIN, A.M.; HWANG, J.Y.; MCKIMPSON, M.G.; GREENLUND, R.C. & HUANG, X. October 1, 1998.

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Description

Potomac Electric Power Company (PEPCo) Class F fly ash is the first material to be worked on in this project. A head sample was taken and a screen analysis performed. Each size fraction was evaluated for LOI content. Table 1 shows the distribution of the as-received material by size and LOI content. From the data, 80% of the as-received material is finer than 400 mesh and the LOI content goes from high at coarse fractions and decreases to a low at the finest size fraction. SEM chemical analysis identified the as-received fly ash to mainly consist of silica (46%), aluminum oxide (21%), and iron in various forms (16%). The high iron content presents an extreme case as compared to other fly ash samples we have evaluated previously. Its effect on product testing applications could identify physical and chemical limitations as product testing progresses. Because of the high iron content, it was realized that magnetic separation would be incorporated into the early part of the pilot plant flowsheet to remove magnetic iron and, hopefully, reduce the total iron content. More analytical data will be presented in the next reporting period.

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16 pages

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OSTI as DE00007936

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  • Other Information: PBD: 1 Oct 1998

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  • Report No.: DE--FC26-98FT40324--02
  • Grant Number: FC26-98FT40324
  • DOI: 10.2172/7936 | External Link
  • Office of Scientific & Technical Information Report Number: 7936
  • Archival Resource Key: ark:/67531/metadc743062

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Office of Scientific & Technical Information Technical Reports

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  • October 1, 1998

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  • Oct. 19, 2015, 7:39 p.m.

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  • April 15, 2016, 1:37 p.m.

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HEIN, A.M.; HWANG, J.Y.; MCKIMPSON, M.G.; GREENLUND, R.C. & HUANG, X. UTILIZATION OF LOW NOx COAL COMBUSTION BY-PRODUCTS, report, October 1, 1998; Morgantown, West Virginia. (digital.library.unt.edu/ark:/67531/metadc743062/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.