Apparatus and method for improving electrostatic precipitator performance by plasma reactor conversion of SO{sub 2} to SO{sub 3}
An apparatus and process that utilize a low temperature nonequilibrium plasma reactor, for improving the particulate removal efficiency of an electrostatic precipitator (ESP) are disclosed. A portion of the flue gas, that contains a low level of SO{sub 2}, O{sub 2}, H{sub 2}O, and particulate matter, is passed through a low temperature plasma reactor, which defines a plasma volume, thereby oxidizing a portion of the SO{sub 2} present in the flue gas into SO{sub 3}. An SO{sub 2} rich flue gas is generated. The SO{sub 3} rich flue gas is then returned to the primary flow of the flue gas in the exhaust treatment system prior to the ESP. This allows the SO{sub 3} to react with water to form H{sub 2}SO{sub 4} that is in turn is absorbed by fly ash in the gas stream in order to improve the removal efficiency of the EPS.
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 20013234
- Resource Relation:
- Other Information: PBD: 9 Nov 1999
- Country of Publication:
- United States
- Language:
- English
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