AMEC performs recovery boiler upgrade
|Location:||Catawba, South Carolina, US|
When the time came for Bowater to execute their commitment to advanced levels of environmental performance in their Catawba, South Carolina mill they called on AMEC.
AMEC was contracted to perform the capacity / environmental upgrade for boiler modifications to an existing 450,000 lbs/hr Babcock & Wilcox process recovery boiler firing Kraft black liquor (three million lbs dry solids/day). The scope included all demolition and installation including secondary airport wall panel openings, secondary velocity airports, windbox modifications, drum/header drilling, supply/riser piping circuitry additions, complete drum internals, feedwater air-heater and piping.
Bowater reported, “particulate emissions produced at our Catawba operations are less than half the amount allowed by operating permits, thanks in part to a US$1.3 million upgrade of the combustion boiler’s electrostatic precipitators.” The company also stated that the conversion of the existing recovery boiler to a ‘low odour’ unit, reduced sulphur emissions from the allowable 20 parts per million (PPM) to less than five PPM.