Babcock & Wilcox Environmental (B&W) provides GMAB™ flue gas cleaning and flue gas condensation technologies for a wide range of applications, including waste-to-energy, co-incineration and hazardous waste incineration plants.

Modern incineration plants are equipped with a boiler system that transforms a large portion of flue gases’ energy content into steam. The steam generates electric power in turbine generators and produces heat in turbine condensers. This heat is then fed into a district heating system.

Energy recovery  is achieved by condensing the water in flue gases. The amount recovered depends on the district heating water temperature; it can be improved by using a heat pump, which can increase recovery by approximately 5 percent. If the flue gas temperature after the boiler is approximately 150ºC, it is then possible to increase the energy efficiency by an additional 20%.

Photo credit: courtesy Babcock & Wilcox