Demonstration of dry carbon-based sorbent injection for mercury control in utility ESPs and baghouses

Introduction Coal has been the predominant fossil fuel used to generate electricity in the United States. It is important that coal continues to be a major source of fuel, as long as it can be burned in an economical and environmentally appropriate manner. The 1990 Clean Air Act Amendment (CAAA) has required that the Environmental Protection Agency (EPA) assess the health risks associated with air toxic emissions from fossil-fuel-fired utility boilers. A considerable level of attention has specifically been given to mercury in terms of its environmental release and impacts.