Integrated coal preparation and CWF processing plant

Conference · Fri Dec 31 04:00:00 EST 1993

OSTI ID:45111

McHale, E T; Paul, A D; Bartis, J T ^[1]

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1. Science Applications International Corp., McLean, VA (United States)

At the request of the U.S. Department of Energy (DOE), Pittsburgh Energy Technology Center, a study was conducted to provide DOE with a reliable, documented estimate of the cost of producing coal-water fuel (CWF). The approach to the project was to specify a plant capacity and location, identify and analyze a suitable coal, and develop a conceptual design for an integrated coal preparation and CWF processing plant. Using this information a definitive costing study was then conducted, on the basis of which an economic and sensitivity analysis was performed utilizing a financial evaluation model to determine a price for CWF in 1992. The scale of the coal preparation and CWF plant design chosen for the study is 200 tons per hour coal output on a dry basis (285 tph CWF). The baseline case assumes round-the-clock operation with an annual operating capacity of 83 percent, corresponding to 166 tph dry coal average output or about 1.5 million tons per year. This is equivalent to the energy required to fuel approximately 500 MW of continuous electric generating capacity. (Other approximate equivalencies are 27,000 barrels per day of CWF or three unit trains per week of CWF delivery.) The design and costing are based on a battery-limit, integrated plant located at or near a coal mine site. As such, it is assumed that roads, rail lines, electric service, water access, auxiliaries, etc., will be available. Also, no provision is made for raw coal storage, since coal storage is assumed to be part of the mining operation. CWF delivery can be by rail, barge or pipeline. The normal operating mode is assumed to the out-loading of CWF directly into unit trains made up of rail tank cars. Storage is provided for two days production of CWF. Costs for off-site disposal of dewatered refuse are included in the final cost figure. The CWF type at which the study was directed is a boiler grade fuel intended to be burned in utility or large industrial units.

• OSTI ID: 45111
• Report Number(s): CONF-930413--
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CAPITALIZED COST
COAL FINES
COAL PREPARATION PLANTS
DESIGN
FUEL SLURRIES
PERFORMANCE
PRICES
PRODUCTION
WATER