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Plume characteristics. [Sulfur dioxide conversion to sulfate in plumes from oil and coal-fired power plants]

Conference ·
OSTI ID:7312317
Sulfur-dioxide conversion (oxidation to sulfate) in both oil and coal-fired power plant plumes was demonstrated. Samples were obtained by fixed-wing aircraft and analyzed for SO/sub 2/ and particulate sulfate content as well as stable sulfur isotope ratios. A mechanism was proposed for the oxidation which involved the dissolution of a small fraction of the SO/sub 2/ in the water associated with the particulates, followed by a fast catalytic formation of sulfate, permitting more SO/sub 2/ to dissolve. Maximum conversion reached 20% in the oil-fired plume, whereas it seldom exceeded 5% in the coal-fired plume. The difference was attributed to the particulate loading and the catalytic nature of the particulates in the respective plumes.
Research Organization:
Brookhaven National Lab., Upton, NY (USA)
DOE Contract Number:
EY-76-C-02-0016
OSTI ID:
7312317
Report Number(s):
BNL-22525; CONF-770315-1
Country of Publication:
United States
Language:
English