JV Task-123 Determination of Trace Element Concentrations at an Eastern Bituminous Coal Plant Employing an SCR and Wet FGD

Dennis Laudal

关键词: AIR;    BITUMINOUS COAL;    DESULFURIZATION;    ELECTROSTATIC PRECIPITATORS;    ELEMENTS;    EPRI;    FLUE GAS;    MASS BALANCE;    MERCURY;    POLLUTION CONTROL;    POWER PLANTS;    SAMPLING;    TRACE AMOUNTS;   

DOI  :  10.2172/989403
RP-ID  :  None
PID  :  OSTI ID: 989403
Others  :  TRN: US201019%%613

美国|英语

来源: SciTech Connect

【 摘 要 】

The Energy & Environmental Research Center (EERC), in partnership with Babcock & Wilcox (B&W) and with funding from U.S. Department of Energy (DOE), conducting tests to prove that a high level of mercury control (>90%) can be achieved at a power plant burning a high-sulfur eastern bituminous coal. With funding from the Electric Power Research Institute (EPRI), DOE, and Center for Air Toxic Metals{reg_sign} (CATM{reg_sign}) Affiliates Program, the EERC completed an additional sampling project to provide data as to the behavior of a number of trace elements across the various pollution control devices, with a special emphasis on the wet flue gas desulfurization (FGD) system. Results showed that the concentrations of almost all the elements of interest leaving the stack were very low, and a high percentage of the trace elements were captured in the electrostatic precipitator (ESP) (for most, >80%). Although, with a few exceptions, the overall mass balances were generally quite good, the mass balances across the wet FGD were more variable. This is most likely a result of some of the concentrations being very low and also the uncertainties in determining flows within a wet FGD.