Power Group Online Article |  | |
31 December 2007 -- Xcel Energy told Minnesota state regulators it plans to control mercury emissions at Sherburne County (Sherco) Generating Plant Unit 3 and the Allen S. King Plant by installing and operating a sorbent injection system.
The company estimates the systems will remove up to 90 percent of the mercury in the coal burned at King and Sherco Unit 3.
Under the plans, a fine powder would be injected into the ductwork of the plants' air quality control equipment to capture mercury. Mercury would collect on the surface of the powder, which would be captured by the air quality control equipment.
The plans must be approved by state regulators before they can be implemented. Each system is expected to cost $4.5 million to install and $3.8 to $5.5 million annually to operate and maintain. If approved, Xcel Energy will implement mercury reductions by Dec. 31, 2009, at Sherco 3 and by Dec. 31, 2010, at King. The plans for King and Sherco Unit 3 are required under the Minnesota Mercury Emissions Reduction Act, which Xcel Energy and other stakeholders agreed to in 2006.
|
Return to Previous Page
Power Engineering Webcasts | |
|
Sponsored White Papers Library | | |
|
|
|
|
Articles 
| View all PennWell sites | View all PennWell events
Add RSS Feed
