| Main Title |
Physical and chemical characterization of coal / |
| Author |
Hamblen, D. G. ;
Solomon, P. R. ;
Hobbs, R. H.
|
| Other Authors |
|
| CORP Author |
United Technologies Research Center, East Hartford, CT.;Industrial Environmental Research Lab., Research Triangle Park, NC. |
| Publisher |
[U.S. EPA] ; Reproduced by National Technical Information Service, |
| Year Published |
1980 |
| Report Number |
EPA 600-7-80-106; EPA-68-02-3116 |
| Stock Number |
PB80-220775 |
| OCLC Number |
07326238 |
| Subjects |
Coal--Analysis
|
| Additional Subjects |
Coal ;
Chemical analysis ;
Particle size distribution ;
Electron probes ;
Sulfur ;
Pyrite ;
Data ;
|
| Internet Access |
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| EJBD |
EPA 600-7-80-106 |
|
Headquarters Library/Washington,DC |
03/15/2019 |
| ELBD ARCHIVE |
EPA 600-7-80-106 |
Received from HQ |
AWBERC Library/Cincinnati,OH |
10/04/2023 |
| ERAD |
EPA 600/7-80-106 |
|
Region 9 Library/San Francisco,CA |
02/19/2013 |
| ESAD |
EPA 600-7-80-106 |
|
Region 10 Library/Seattle,WA |
03/23/2010 |
| NTIS |
PB80-220775 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
viii, 154 pages : illustrations ; 28 cm |
| Abstract |
The report describes an automated scanning electron microprobe method of analyzing sulfur forms and mineral matter in coal. The microprobe is used to measure the spatial distribution of a number of elements (including Fe, S, Si, Al, Ca, and K) on a scale where individual grains can be observed. These data are then analyzed to extract the following information: organic sulfur concentration; mineral sulfur concentration; total sulfur concentration; major mineral concentrations, including Al2O3, SiO2, K2O, and CaCO3; and stoichiometry of iron sulfide, FeSx. The procedure is fully automated: all of the above information is obtained on a 200 mg coal sample in less than 15 minutes. Sulfur forms and total sulfur were reproducible to within 0.1 wt%. In addition, estimates of the pyrite particle size for two coals were obtained from the spatial distribution of the Fe and S data, and these estimates are compared with the results of a washability study. A commercial elemental analyzer, evaluated for use in determining nitrogen in coal, gave results that were reproducible and accurate to within 3%. |
| Notes |
On cover: Prepared for Industrial Environmental Research Lab. Includes bibliographical references (page 59). Contract no. 68-02-3116; program element no. INE624. "EPA 600-7-80-106." "May 1980." Cover title. On cover: PB80-220775. |
