ESP and Fabric Filter Considerations for Meeting Environmental Regulations: IED, LCP and WI BREF

摘要

Regulations for emission control in Europe continue to pose challenges for utilities and industrial plants. To achieve compliance, plant owners and operators must consider a multi-component strategy for removing particulate matter (PM), acid gases, mercury and other hazardous air pollutants. Air quality control systems (AQCS) are delivering maximum operating efficiency for emission control by combining different technologies such as dry sorbent injection (DSI), wet and dry electrostatic precipitators (ESPs), fabric filters, spray dryer absorbers (SDAs), fluidized bed scrubbers, and wet flue gas desulphurization (FGD). A thorough assessment of the plant’s current flue gas pollutant concentration is critical to selecting the optimum combination of technologies. This informative paper will examine how ESPs and fabric filters can effectively be integrated into a multi-component air quality control system. Co-benefits of each technology will be addressed including: 1. ESP & fabric filter design considerations for compliance strategies 2. Choosing the best combination of technologies based on the plant’s flue gas pollutants 3. Options for upgrading or retrofitting ESPs or fabric filters 4. Impact of DSI / activated carbon injection (ACI) & additional PM loading on ESPs & fabric filters 5. Factors driving the selection of wet ESPs (PM2.5, sulfuric acid mist, plume/opacity control, etc.) 6. Considerations when converting from ESP to fabric filter This paper will also cover lessons learned from emission control technologies and strategies implemented in the U.S. and their applicability to meeting future European emissions requirements. In addition, a recent reference project covering a coal-fired boiler installation will be discussed.