System approach to reducing NO{sub x} emissions on a three cell high burner, heavy oil-fired boiler
Conference
·
OSTI ID:389891
- DB Riley, Inc., Worcester, MA (United States)
- Commonwealth Electric Co., Wareham, MA (United States)
This paper documents the installation of plug-in low NO{sub x} burners on a utility boiler with cell burners. The original rapid mix burners and typical close burner centerline spacing produced a very hot furnace environment resulting in extremely high NO{sub x} emissions, in this case as high as 1.0 lbs/MMBtu. The unit was a {number_sign}6 oil-fired, 560 MW{sub e} supercritical pressure, three-cell burner boiler at Commonwealth Electric`s Canal Station, Unit {number_sign}1. This paper presents the results including emissions and boiler performance of the retrofit of DB Riley low NO{sub x} STS (Swirl Tertiary Stage) burners. Low NO{sub x} burners were used in conjunction with close-coupled overfire air using existing burner openings. The project reduced NO{sub x} emissions greater than 705 while firing {number_sign}6 oil, and this was accomplished with less than 10% flue gas recirculation.
- OSTI ID:
- 389891
- Report Number(s):
- CONF-960426--
- Country of Publication:
- United States
- Language:
- English
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