EPC for Waste Wood/Gas Power Plant

Brand:
Ausenco Sandwell
Client:
Stone Container Corporation
Location:
Coshocton, OH, USA

This EPC contract was for delivery of a power plant consisting of a combination fuel boiler, turbine generator, feedwater and feedwater makeup treatment system, and fuel handling and ash disposal systems. The boiler is a field erected B&W combination wood waste and natural gas fired unit, rated at 400,000 lb/h at 900 psig and 825°F. The GE single automatic extraction, noncondensing turbine is rated at 20,000 kW with 850 psig and 825°F with a 24,500 kVA air cooled, brushless exciter generator. The flue gas scrubber is a variable venturi type, with chevron moisture separators and a stainless steel stack. Auxiliary equipment and systems included multimedia filters and two-bed demineraliser system; condensate polisher; deaerator, feedwater heater and feedwater pumps; wood waste receiving and conveying system; mechanical ash handling system. The 20 MW cost effective power plant was designed and built on a fast-track schedule of only 18 months; 3 months ahead of the original schedule. The facility operates in excess of 99% availability.

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