FABRIC
FILTER NEWSLETTER
February 2009
No. 400
Oregon DEQ BART Proposal for Boardman
The Oregon Department of Environmental Quality (DEQ) recommends the following Best Available Retrofit Technologies (BART), or equivalent technologies, for Portland General Electric’s (PGE) coal-fired power plant near Boardman, OR.
|
Pollutant |
Control Technology |
Emission Limit |
Averaging Time |
Installation Date |
|
|
Nitrogen Oxides (NOx) |
New low NOx burners with modified overfire air system (NLNB/MOFA) |
0.28 lb/MMBtu heat input _____________ 0.23 lb/MMBtu heat input |
30-day rolling average _____________ 12-month rolling average |
7/1/11
__________ 7/1/11 |
|
|
Selective Non-Catalytic Reduction (SNCR) contingency |
0.23 lb/MMBtu heat input |
30-day rolling average |
7/1/14 |
||
|
Sulfur Dioxide (SO2) |
Semi-dry flue gas desulfurization (SDFGD) |
0.12 lb/MMBtu heat input |
30-day rolling average |
7/1/14 |
|
|
Particulate Matter (PM) |
Pulse jet fabric filter (PJFF) as part of the SDFGD system and in addition to the existing electrostatic precipitator |
0.012 lb/MMBtu heat input |
3-hour average based on the results of compliance source testing |
7/1/14 |
|
The SNCR contingency is included with BART in the event that new low NOx burners with modified overfire air cannot achieve 0.23 lb/MMBtu heat input. The Department also recommends a Phase 2 NOx emission reduction to 0.07 lb/MMBtu heat input (30-day rolling average) based on installation of a SCR or equivalent by July 1, 2017. This additional control requirement is recommended in order to minimize Boardman’s NOx emissions to ensure that reasonable progress is being made to meet the regional haze goals for Class I Wilderness Areas and National Parks and to further improve the air quality and scenic vistas in the Columbia River Gorge National Scenic Area. It is estimated that the capital cost of Phase 1 will be 280 million dollars with an annualized cost of 40.3 million dollars per year (2007 dollars). Phase 2 for NOx will add an additional capital cost of 191 million dollars with an annualized cost of 23.1 million dollars (2007 dollars). The other option for PGE is to install the low NOx burners but not the FGD and SCR systems, and then shut the plant down in 2020. See www.deq.state.or.us/aq/haze/pge.htm
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