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Show railroad access. Further, restricted space often prohibits installation of coal handling and preparation facilities. The potential market for slurry fuels in the U.S. is substantial. Fuel burning equipment that can be converted to the use of slurry fuels includes utility and industrial boilers, blast furnaces, kilns and process heaters. Coal is available domestically in abundant quantities and its cost, on a thermal input basis, is much less than fuel oil and natural gas. Due to this cost differential, coal slurry fuels promise to be cost effective. The need to develop slurry fuel technology as a substitute for fuel oil cannot be overemphasized. In 1979 Occidental Petroleum Corporation (OXY) recognized the need for a national source of an alternate fuel and embarked on an aggressive program for the commercialization of slurry fuels. A one million barrel per year coal-oil mixture (COM) demonstration plant has been in operation since 1981. However, OXY now plans to convert this plant for production of CWM because this technology has greater economic potential. Over the last three years, OXY has conducted an extensive CWM R&D program. Combustion research has been an integral part of this program to establish a fuel specification. While CWM can be handled and stored like fuel oil, its combustion characteristics are quite different. The combustion tests were therefore directed at determining how the fuel rheological properties can influence its combustion characteristics. The results of this combustion research effort, which was conducted by KVB for OXY, are reported in this paper• 1.2 OBJECTIVES The primary objective of the CWM combustion test program was the identification of the effects of compositional and operational variable on CWM combustion performance. The compositional variables included (1 ) coal type, (2) coal grind size and distribution, and (3) stabilizing additive type. Operational variables included (1) furnace heat release (load), (2) atomizer design, (3) furnace excess air, (4) flame stabilization method, and (5) atomizing air to fuel mass flow ratio. 2 KVB72-P327 D194 |