Properties of premium coal water fuel prepared by advanced physical fine coal cleaning
- Entech Global, Inc., Golden, CO (United States)
- Dept. of Energy, Pittsburgh, PA (United States)
Coal water slurry fuels (CWF) were prepared from six finely ground bituminous coals cleaned by two advanced physical fine coal cleaning processes, column flotation and selective agglomeration, which reduced their ash contents to less than 2 lb/MBtu. A-23M was used as a dispersant. The CWF slurries prepared from -62 mesh to -150 mesh hvA Taggart, Elkhorn No. 3, Sunnyside and Hiawatha coals contained 59.5 to 67 percent coal, or 8,500 to 10,200 Btu/lb. CWF prepared from minus 325 mesh hvG Indiana VII coal contained 50.9 to 52.5 percent coal, or 7,100 to 7,400 Btu/lb. The cleaning method had no discernible impact on the slurry properties. Adjustment of the natural particle size distributions by regrinding a portion of the clean coal improved the loadings by a small amount while Flocon stabilizer additions had an adverse effect. Because of the cost of the stabilizer, it is recommended that CWFs be burned soon after preparation.
- OSTI ID:
- 490354
- Report Number(s):
- CONF-970310-; TRN: 97:003021-0073
- Resource Relation:
- Conference: 22. international technical conference on coal utilization and fuel systems, Clearwater, FL (United States), 17-20 Mar 1997; Other Information: PBD: [1997]; Related Information: Is Part Of The proceedings of the 22nd international technical conference on coal utilization and fuel systems; Sakkestad, B.A. [ed.]; PB: 1012 p.
- Country of Publication:
- United States
- Language:
- English
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