| OCR Text |
Show of boiler capacity were originally designed for coal firing, but are currently firing some alternate fuel. These boilers could fire a coal-water mixture with a minimum amount of boiler island modifications. In addition, approximately 100,000 MWe of capacity, designed for oil firing, could be converted to a coal-water mixture with some combination of boiler modifications and derating. The amount of derating would depend on the particular boiler design and the parent coal used to produce the coal-water mixture. Derating would be minimized by careful fuel selection and ash beneficiation. Slurrytech, Inc. officials and a representative of at least one other coal-water mixture producer estimate the cost of coal-water mixtures will be approx-imately $3/10 x Btu. This price assumes that the price of coal is approximately $30/ton. The immediate application of this fuel appears to be the displacement of oil in boilers originally designed for coal firing. Later applications will be to utility and industrial boilers designed for oil firing, industrial heating, pipeline transportation of coal, marine propulsion, marine tanker transportation of coal, and as fuel for high pressure gasifiers and fluidized bed combustors. Present development efforts at B&W, Alfred University , and Kennedy Van Saun provide the fuel supply and design data necessary to complete larger scale pumping and combustion tests. These tests, in turn, will provide the information necessary to successfully demonstrate the utilization of Co-AL as a utility boiler fuel in late 1982. ACKNOWLEDGEMENTS The authors gratefully acknowledge the efforts of Steve Johnson, and John Tang of the B&W Alliance Research Center, and J. E. Funk, Jr., D. F. Dinger of Alfred University for their contributions to this paper. Also, a special note of thanks is given to Ms. Nettie Cross for her administrative and secretarial assistance. 13-9 |
