In this project, trona and powder-activated carbon (PAC) are simultaneously infused into the flue gases for reducing sulfur dioxide (SO2) and mercury (Hg) from the plant’s exhaust.
When NRG sought to reduce emissions of particulates, SO2, and mercury at the two stations, the company selected CBEEC’s environmental control technology for meeting the emissions requirements.
For this project, CBEEC engineered and supplied all Air Pollution Control (APC) equipment and ancillary systems down to the foundations. The project included demolishing existing equipment, erecting new equipment, hot to cold ductwork conversions of all 12 air heaters, piping, low and medium-voltage electrical work, and thermal insulation.
The company said that performance tests indicate that emissions of SO2 are reduced by over 55%, mercury levels reduced by over 90%, and particulate levels reduced to less than 0.010 lbs/MMBtu.
The work for the project included engineering, procurement, construction, and commissioning.
