Flue Gas Desulfurization at Navy Bases, Navy Energy Guidance Study. Phase IV.
BECHTEL NATIONAL INC SAN FRANCISCO CA
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The availability, costs, operating performance of industrial-sized flue gas desulfurization FGD systems for coal-fired boilers were studied. A generic overview analysis showed that conventional soda liquor scrubbing offered lowest costs and highest performance when environmental permits can be obtained for disposal of liquid wastes. When wastes must be in solid form, the lowest costs are offered by conventional limestone, lime, and double alkali calcium-based throwaway processes. Several processes still under development were identified as promising but not yet proven. A site specific study identified three industrial-sized FGD installations with inherent availabilities in excess of 98. The contract called for consideration and general comparison of lime, limestone, double alkali, sodium carbonate, sodium sulfite-bisulfite Wellman-Lord, activated charcoal, and other candidate technologies. A comparison of approximate levelized life-cycle costs is reported for the current technologies.
- Air Pollution and Control