The Babcock & Wilcox Co. (NYSE:BWC) said March 14 that subsidiary Babcock & Wilcox Power Generation Group (B&W PGG) has been awarded a contract to deliver, erect and commission a dry flue gas desulfurization system for Interstate Power and Light’s (IPL) 270-MW coal-fired Lansing Generating Station in Iowa.
IPL is a subsidiary of Alliant Energy (NYSE: LNT).
Under contract to Burns & McDonnell, B&W will deliver and erect a circulating dry scrubber (CDS) with a lime and byproduct solids handling system for the reduction of emissions, including SO2. B&W will also supply new bags for the plant’s existing pulse jet fabric filter. Babcock & Wilcox Construction will erect the environmental equipment.
CDS technology – also known as Circulating Fluid Bed Flue Gas Desulfurization (CFB-FGD) – is applicable to a wide range of unit sizes and fuel sulfur content, but is ideally suited for smaller units that fire medium- to high-sulfur coals, the company noted. In conjunction with the pulse jet fabric filter, the CDS reduces an array of emissions with low capital and operating costs, and no waste water production.
“We’ve enjoyed an outstanding professional relationship with Interstate Power and Light Company and Burns & McDonnell on past projects, and we appreciate this opportunity to work with these two outstanding companies again,” B&W PGG President and Chief Operating Officer J. Randall Data said. “A CDS system supplied by B&W is an ideal solution for many customers who are looking to reduce a plant’s SO2 emissions while minimizing capital cost.”
Construction on the Lansing project is scheduled to begin in 2014 and to be completed in 2015. Commissioning and startup will also occur in 2015.
U.S. Energy Information Administration data shows the Lansing plant taking Powder River Basin coal last year from several suppliers, including the Cordero mine of Cloud Peak Energy (NYSE: CLD) and the Black Thunder mine of Arch Coal (NYSE: ACI).
Alliant, in its Feb. 26 annual Form 10-K report, said that several emissions projects are in the works for IPL and its Wisconsin Power and Light (WPL) subsidiary. The company plans to retire Lansing Unit 3, with 38 MW of capacity, by the end of 2014. The environmental compliance plans by subsidiary are:
- George Neal 3-4, in-service in 2013-2014, scrubber and baghouse;
- Ottumwa 1, in-service in 2014, scrubber and baghouse;
- Lansing 4, in-service in 2015, scrubber;
- Columbia 1-2, in-service in 2014, scrubber and baghouse; and
- Edgewater Unit 5, in-service in 2016, scrubber and baghouse.