Feasibility of Installing Sulfur Dioxide Scrubbers on Stationary Sources in the South Coast Air Basin of California. Volume II:Technical Discussion.

摘要

The feasibility and costs of flue gas scrubbing to remove sulfur dioxide were determined for selected oil-fired power plants and industrial sources of SO2 (including flue gas from fluid catalytic cracking units,coke calcining kilns and sulfuric acid plants) in the Los Angeles area. The objective was to achieve a 90percent reduction in SO2emissions from each facility. Technical feasibility for SO2removal was established on the basis of the lime-limestone nonregenerable scrubber technology demonstrated in Japan and on units currently being installed and operated in the United States. Other factors such as compatibility with facility operations,space requirements,waste handling,and disposal were examined. Power,water,and flue gas reheating requirements were also addressed. It was concluded that all of the sites studied can be retrofitted with wet nonregenerable scrubbers capable of removing SO2to the levels specified. The degree of difficulty of the scrubber installations varied considerably. Disposal of scrubber wastes produced from the scrubbers does not appear to present a significant handling problem or impact on existing Class I landfill disposal sites in Los Angeles County. Annualized charges in terms of mills per kilowatt hour,dollars per ton SO2removed,and dollars per ton product,as appropriate,are reported.