Development of Electrostatically Enhanced Core Separater for Particulate Air Toxics Control
Technical Report
·
OSTI ID:600545
The Clean Air Act Amendments of 1990 have identified 189 chemical elements and compounds as hazardous air pollutants (HAPs). The U.S. Environmental Protection Agency (EPA) has been given the task of evaluating the health risks of these so-called air toxics and determining their acceptable emission rates. The U.S. Department of Energy (DOE), in cooperation with private industry, is sponsoring research into developing new air toxic emission control technologies. Coal typically contains trace amounts of HAPS, the species and amounts vary with coal type and source. Combustion of coal in Fossil Energy Power Systems releases these HAPs into the combustion gas where they flow to the stack by passing through the gas cleanup system. Except for mercury and selenium, the HAPs exist primarily in the solid phase temperatures typical of flue gases so they can be removed by particulate cleanup systems. In fact, these solid phase HAPs are removed with approximately the same efficiency as the other particulate matter. Table 1 shows the removal efficiency of 15 HAPs by an electrostatic precipitator having an efficiency of approximately 99 percent. These results suggest that very high removal efficiencies of particulate HAPs can be achieved by using a very high efficiency particulate collector. Epidemiological studies` suggest that there may be health benefits from reducing concentrations of particulate matter in the ambient air. This paper will discuss the development of a very high efficiency particulate collector called the Electrostatically Enhanced Core Separator (EECS) system that may have the potential to significantly reduce the emission rates of both particulates and particulate air toxics from Fossil Energy Power Systems.
- Research Organization:
- LSR Technologies, Inc., Acton, MA (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
- DOE Contract Number:
- AC22-95PC95261; AC22-95PC95253
- OSTI ID:
- 600545
- Report Number(s):
- DOE/PC/95261--98/C0930; CONF-970772--; ON: DE98051627
- Country of Publication:
- United States
- Language:
- English
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