Engineering development of advanced physical fine coal cleaning for premium fuel applications

Abstract

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Engineering development of advanced physical fine coal cleaning for premium fuel applications

“…A column flotation installation at the latter plant was particularly attractive because of an expansion program then in progress. A conceptual evaluation indicated that clean coal centrifuge cake could be produced there for $ 6.20/st (dry basis) when using column flotation. Thermal drying would add $8.80/st to the cost.…”

“…Also, further optimize process conditions to obtain design parameters so that the coal company may assess feasibility of a plant conversion to the advanced cleaning process. 5. Determine dewatering, CWF preparation, and briquetting properties of fine clean coal from the pilot operation so that the marketing prospects of the additional coal production can be included in the coal company assessment.…”

Engineering development of advanced physical fine coal cleaning for premium fuel applications. Quarterly technical progress report 15, April--June 1996

“…The project scope includes laboratory research and benchscale testing on six coals to optimize these processes, followed by the design, construction, and operation of a 2-t/hr process development unit (PDU). The project began in October, 1992, and is scheduled for completion by September 1997. Under Subtask 6.4, the benefits of slurry PSD (particle size distribution) modification 'and pH adjustment were evaluated for the Taggart and Hiawatha coals.…”