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The two-stage, dry FGD and particulate removal system

Journal Article · · J. Air Pollut. Control Assoc.; (United States)
The two-stage, dry FGD and particulate removal system selected for use at Coyote Station in Beulah, N.D., was developed by Wheelabrator-Frye Inc. and Rockwell International Corp. (under contract with Bechtel) and consists primarily of four spray dryers and a fabric filter. Soda ash will be used as adsorbent. The conventional spray dryers produce uniformly sized particulates which are readily collectable on a fabric filter. Both woven and felted fabrics are suitable, and polyester or acrylic can be used since the flue gas is cooled 250/sup 0/C in the dryer. The type of absorbent storage and preparation facilities used depends on choice of absorbent. With lime as the absorbent, removal efficiencies in the range of 85-90 can be obtained. The dry system can economically meet existing and proposed standards for sulfur dioxide control. Capital, operating, and maintenance costs are estimated for a lime absorbent plant.
Research Organization:
Rockwell Int. Corp.
OSTI ID:
7089062
Journal Information:
J. Air Pollut. Control Assoc.; (United States), Journal Name: J. Air Pollut. Control Assoc.; (United States) Vol. 29:4; ISSN JPCAA
Country of Publication:
United States
Language:
English