Abstract
To check the relation between polycyclic aromatic hydrocarbons (PAHs) and particulate matter (PM), this study chose a low-low temperature electrostatic precipitator (LLT-ESP) in an ultra-low-emission coal-fired power plant to study the mechanism at two operation conditions. Sixteen U.S Environmental Protection Agency PAHs in filterable and condensable PM were analyzed. The removal efficiency of the LLT-ESP for filterable PM2.5 was 98.8% and 98.4% at two different stages. The removal efficiency of the LLT-ESP for condensable PM was 77.1% at high temperature and 89.6% at low temperature. The boiler load markedly affected the emission of filterable PM, condensable PM, and particle-associated PAHs. The PAHs’ concentration distribution was related to the PM concentration distribution. The mass concentration of total PAHs and the proportion of 5-ring and 6-ring PAHs in filterable PM2.5 increased significantly when the flue gas passed through the LLT-ESP. The 3- and 4-ring PAHs accounted for the main part of con...
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call