Direct SO{sub 3} flue gas conditioning (in-duct) within the economizer section ductwork -- Low cost concepts
- Monsanto Enviro-Chem Systems Inc., St. Louis, MO (United States)
- Wilhelm Environmental Technologies, Inc., Indianapolis, IN (United States)
The Clean Air Act Amendments of 1990 has put into place several regulations, guidelines, and deadlines which have a substantial impact on the electric utility industry. One result has been a steady move to the use of low sulfur coal in order to comply with current and future regulations on the emission of SO{sub 2}. A side effect of the move to low sulfur coal, however, has been a general degradation of the performance of electrostatic precipitators (ESP) due to change in the resistivity of the fly ash particles. Rather than a costly redesign and replacement of these precipitators, several methods of conditioning the flue gas to provide optimum operation of the ESP have been tried with varying degrees of success: injection of SO{sub 3} or other material (water or ammonia); slip-stream reaction of native SO{sub 2} to SO{sub 3} (EPRICON process); in-duct reaction of native SO{sub 2} to SO{sub 3}. In this paper, the authors explore the requirements and possibilities for an alternative to the EPRICON process, namely in-duct reaction of native SO{sub 2} to SO{sub 3}.
- OSTI ID:
- 376158
- Report Number(s):
- CONF-960426-; TRN: IM9642%%246
- Resource Relation:
- Conference: 58. annual meeting of the American power conference, Chicago, IL (United States), 9-11 Apr 1996; Other Information: PBD: 1996; Related Information: Is Part Of Proceedings of the American Power Conference. Volume 58-I; McBride, A.E. [ed.]; PB: 767 p.
- Country of Publication:
- United States
- Language:
- English
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