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PRELIMINARY ESTIMATES OF PERFORMANCE AND COST OF MERCURY CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS
Citation:
Srivastava*, R K., C B. Sedman*, J D. Kilgroe*, D. Smith, AND S. Renninger. PRELIMINARY ESTIMATES OF PERFORMANCE AND COST OF MERCURY CONTROL TECHNOLOGY APPLICATIONS ON ELECTRIC UTILITY BOILERS. JOURNAL OF AIR & WASTE MANAGEMENT ASSOCIATION. Air & Waste Management Association, Pittsburgh, PA, 51(10):1460-1470, (2001).
Description:
Under the Clean Air Act Amendments of 1990, the Environmental Protection Agency has determined that regulation of mercury emissions from coal-fired power plants is appropriate and necessary. To aid in this determination, preliminary estimates of the performance and cost of powdered activated carbon (PAC) injection-based mercury control technologies were developed. This paper presents these estimates and develops projections of costs for future applications.
Cost estimates were developed based on using PAC to achieve a minimum of 80% mercury removal at plants using electrostatic precipitators and a minimum of 90% removal at plants using fabric filters. These estimates range from 0.305 to 3.783 mills/kWh. However, the higher costs are associated with the minority of plants using hot-side electrostatic precipitators (HESPs). If these costs are excluded, the estimates range from 0.305 to 1.915 mills/kWh. Cost projections, developed based on using a composite lime-PAC sorbent for mercury removal, range from 0.183 to 2.270 mills/kWh with the higher costs being associated with the minority of plants using HESPs.