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Physical coal cleaning to reduce Illinois no: 6 seam coal's slagging potential

Conference · · Prepr., Soc. Min. Eng. AIME; (United States)
OSTI ID:6281033

This paper compares the ash slagging potential of Illinois No. 6 Seam coal: as raw coal; as commercially cleaned coal processed in a baum-jig plant; and as coal cleaned to a reduced ash specification at the Electric Power Research Institute's Coal Cleaning Test Facility. The comparison is based on: ASTM ash fusibility data, A slagging index Gravity fractionation analyses of critical mineral matter compounds, Comparative pilot combustion tests. The first three grounds of comparison are laboratory data; and the final comparison involves burning approximately 15 tons of each coal at CONOCO's 1.5 MBtu/hr (440 KW) test combustor. The evidence of these four comparisons indicates that lowering the ash specification of coal before combustion can significantly improve the ash slagging characteristics of Illinois No. 6 Seam coal.

Research Organization:
Electric Power Research Institute, Homer City, Pennsylvania
OSTI ID:
6281033
Report Number(s):
CONF-840218-
Journal Information:
Prepr., Soc. Min. Eng. AIME; (United States), Journal Name: Prepr., Soc. Min. Eng. AIME; (United States) Vol. 84-166; ISSN PMAID
Country of Publication:
United States
Language:
English