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Main Title Assessment of coal cleaning technology : final report /
Author McCandless, L. C. ; Onursal, A. B. ; Moore, J. M.
Other Authors
Author Title of a Work
Onursal, A. Bekir.
Moore, J.
CORP Author Versar, Inc., Springfield, VA.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
Publisher Air and Energy Engineering Research Laboratory, Office of Research and Development, U.S. Environmental Protection Agency,
Year Published 1986
Report Number EPA/600/7-86/037; EPA-68-02-2199
Stock Number PB87-120515
Subjects Coal preparation ; Coal--Desulfurization ; Coal ash ; Coal--Desulphurization
Additional Subjects Coal preparation ; Air pollution control ; Assessments ; Cleaning ; Sulfur dioxide ; Tables(Data) ; Desulfurization ; Flotation ; Boilers ; Environmental surveys ; Performance ; Stationary sources
Library Call Number Additional Info Location Last
NTIS  PB87-120515 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 209 pages : illustrations ; 28 cm
The report gives results of tests at seven coal preparation plants to evaluate the performance of froth flotation cells and dense-medium cyclones in removing ash and sulfur (S) from fine coal (Minus 28 mesh). Flotation circuits tested at four plants showed substantial reductions in coal ash content (64-88%), pyritic S content (48-65%), and sulfur dioxide (SO2) emission (expressed as ng SO2/million Btu; 15-87%) at mean weight recoveries of 11-54%. Raw and clean coal data sets were found to exhibit statistical properties that can be characterized by time series models. The use of low S coal, PCC, or chemical coal cleaning (CCC) was evaluated for compliance with potential SO2 emission limits for industrial boilers. PCC can achieve moderate S reductions in (high S) Northern Appalachian and Midwestern coals, but few of these coals can be cleaned to meet a 516 ng SO2/million Btu standard. Many Southern Appalachian, Alabama, or Western coals are capable of meeting the standard as mined or after cleaning.
"October 1986." Includes bibliographical references. "PB87-120515." "EPA/600/7-86/037." Microfiche.