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Title: Dry SO/sub 2/ scrubbing at Antelope Valley, ND, power station

Conference · · Combustion; (United States)
OSTI ID:5474052

Pilot-plant studies of the Niro Atomizer A.S./Joy Manufacturing Co. soda ash or lime-slurry dry desulfurization system at a Minnesota powerplant preceded Basin Electric Power Cooperative's choice of the process for a 440 MW, lignite-fired unit at its Antelope Valley station near Bismarck, ND. The pilot-plant work showed that dry scrubbing would meet the EPA New Source Performance Standards for SO/sub 2/ removal and that the system would be simpler to operate, need less complex equipment, hence, more available than a wet scrubber. The $47 million advantage of the dry over a wet system is site-specific. Some of the features of the Joy/Niro system are the recycle of a portion of the spent chemicals and fly ash to the fresh feed, thereby saving time; the use of a single rotary atomizer centered in the spray dryer absorber; the compound gas disperser design; and the Joy stepped tube sheet baghouse design.

Research Organization:
Basin Electric Power Cooperative, Bismarck, ND
OSTI ID:
5474052
Report Number(s):
CONF-790443-
Journal Information:
Combustion; (United States), Vol. 51:4; Conference: American power conference, Chicago, IL, USA, 23 Apr 1979
Country of Publication:
United States
Language:
English