| Main Title |
Preliminary evaluation of sulfar variability in low-sulfur coals from selected mines / |
| Author |
Nelson., A. Carl ;
|
| CORP Author |
PEDCo Environmental, Inc. |
| Publisher |
Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards ; For sale by the National Technical Information Service, |
| Year Published |
1977 |
| Report Number |
EPA/450-3-77-044; EPA-68-02-1321 |
| Stock Number |
PB-275 000 |
| OCLC Number |
03678678 |
| ISBN |
pbk. |
| Subjects |
Coal--Sulfur content--United States ;
Coal--United States--Sulfur content
|
| Additional Subjects |
Sulfur ;
Coal ;
Concentration(Composition) ;
Regulations ;
Statistical analysis ;
Data analysis ;
Variability ;
Coal mines ;
Tables(Data) ;
Mean ;
Standard deviation ;
Frequency distribution ;
Air pollution ;
Low sulfur coal ;
Air pollution abatement
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EKBD |
EPA-450/3-77-044 |
|
Research Triangle Park Library/RTP, NC |
09/10/1999 |
| ELBD ARCHIVE |
EPA 450-3-77-044 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ELBD RPS |
EPA 450-3-77-044 |
repository copy |
AWBERC Library/Cincinnati,OH |
05/09/2017 |
| ESAD |
EPA 450-3-77-044 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB-275 000 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
[178] pages : illustrations ; 28 cm. |
| Abstract |
Data on the variability of sulfur content and heating value of coal have been obtained from several coal and utility companies. These data have been analyzed to estimate the mean, standard deviation, and the frequency distribution of weight percent sulfur (dry basis) and the impact of this variability on the required average sulfur content to comply with an emission regulation. In order to assess the implications of sulfur variability for compliance with emission regulations, such as those specified by State Implementation Plans(SIP) and New Source Performance Standards (NSPS), the relative standard deviation (RSD) of weight percent sulfur was estimated as a function of the amount of coal sampled and the number of composite samples for the specified averaging period. These RSD's were used to estimate the required average sulfur content to yield 95 and 99 percent compliance with the emission limitation of 1.2 lb SO2/MM Btu. The detailed computations are given for two sizes of power plants, 500 MW and 25 MW (250 MM Btu/hour, the smallest plant covered by the NSPS). As the percent of compliance increases the required average sulfur content decreases and rapidly approaches sulfur levels for which the availability of uncleaned coal to comply with the NSPS would approach zero. |
| Notes |
Contract no. 68-02-1321, task no. 41. "Nov. 1977." "EPA/450-3-77-044." Includes bibliographical references (pages 7-1). |
