Demonstration of cohpac II for control of fine particulate emissions and air toxics from coal-fired power plants

摘要

The Clean Air Act Amendments of 1990 require utilities to reduce sulfur dioxide (SO_x) emissions and study the potential affect of trace emissions, such as mercury, from power plants. Certain approaches for SO_x control that could be cost-effective for specific sites, such as fuel switching and sorbent injection, can severely affect the particulate collection performance of existing electrostatic precipitators (ESPs). In addition, many utilities are extremely concerned about potential regulation of trace emissions which might require improved collection of fine particles and trace element/compounds from existing power plants.