| Main Title |
Assessment of coal cleaning technology : final report / |
| Author |
McCandless, L. C. ;
Onursal, A. B. ;
Moore, J. M.
|
| Other Authors |
|
| 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
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| 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 |
| Abstract |
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. |
| Notes |
"October 1986." Includes bibliographical references. "PB87-120515." "EPA/600/7-86/037." Microfiche. |
