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Original Articles

Sulfur Trioxide Conditioning

Pages 156-158 | Published online: 13 Mar 2012
 

Abstract

Burning of western low sulfur coal, to reduce sulfur oxide emissions, has resulted in decreased electrostatic precipi-tator collection efficiencies. In an effort to restore pre-cipitator performance a flue gas conditioning program was established by the company. This paper is a brief history of Commonwealth Edison Company’s experience with sulfur trioxide as a flue gas conditioning agent. Testing at State Line Station has proven that sulfur trioxide conditioning can effectively be used to improve precipitator performance when burning low sulfur coals. Although the first phase of the conditioning program is not completed, information has been gained which is being used as a basis in design and evaluation of future systems.

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