Cleaning the waste streams leaving energy production plants is a critical component of today’s energy production processes.
For coal fired power plants there are many critical applications in the flue gas desulphurization (FGD) system that depend on composite equipment to maintain reliable control and containment of sulfur dioxide (SO2) emissions.
The FGD systems rely on the proven use of fiber reinforced plastic (FRP) composites for scrubber vessels, internal distribution piping, outlet ducting, chimney liners and storage tanks.
Composites are also seeing increasing application in the carbon capture and storage (CCS) equipment projects that are being piloted with the involvement of the US Department of Energy to better manage the CO2 generated by coal based energy production.
The fiber reinforced composite is typically a combination of epoxy vinyl ester resin and corrosion resistant glass fibers.
Due to their large diameters, some equipment such as tanks and chimney liners are required to be fabricated on site using a fabrication technique known as filament winding.
The equipment in energy production plants sees aggressive corrosion service from off gas contaminants such as SO2, SO3, NOx, HCL and sulfuric acid mist. These constituents create environments that are far too corrosive for standard industrial metals. FRP composites maintain superior corrosion resistance in these aggressive gas and liquid environments and allow the critical FGD and CCS systems to be constructed without the use of expensive rare earth metal alloys.