25 Feb 2002 – Alstom has been awarded a contract worth more than €142m by East Kentucky Power Cooperative, Inc. (EKPC) to design, supply and build a 268 MW, coal-fired circulating fluid bed (CFB) boiler at the utility’s H.L. Spurlock Power Station near Maysville, Kentucky, USA.
EKPC will break ground on the project this month, with commercial operation scheduled for late 2004. The new boiler – to be named the E.A. Gilbert Unit- will be the third generating unit at the plant. It will be situated adjacent to the existing Spurlock Unit 2, a 500 MW pulverized coal-fired unit built in 1981, and will burn coal supplied predominately by a variety of Kentucky mines.
Under the terms of the contract, Alstom’s scope includes design and supply of the CFB boiler and associated auxiliary equipment, design and supply of the gas cleaning equipment, and erection.
The new CFB boiler will provide the Spurlock plant with greater operating flexibility and efficiency, whilst minimising sulphur dioxide and nitrogen oxide emissions through the use of in-furnace combustion control techniques.
To control emissions further, the plant design will also include Alstom’s Flash Dryer Absorber (FDA) system, an emissions control technology that will make this CFB one of the cleanest burning coal-fired boilers in the United States. The FDA system, which integrates several key flue gas desulphurisation functions into one unit, will allow the Gilbert Unit to achieve nearly 98 per cent sulphur dioxide removal.
Since 1986, Alstom has supplied worldwide a total of 84 environmentally-friendly CFBs, representing roughly 8000 MW (gross electric output) of power. These units provide clean combustion of a wide variety of fuels, including biomass, bituminous and sub-bituminous coal, anthracite, brown coal, lignite, petroleum coke, and coal washery wastes.