||Economics of nitrogen oxides, sulfur oxides, and ash control systems for coal-fired utility power plants /
Maxwell, J. D. ;
Humphries, L. R.
||Tennessee Valley Authority, Muscle Shoals, AL. Div. of Energy Demonstrations and Technology.;Environmental Protection Agency, Research Triangle Park, NC. Air and Energy Engineering Research Lab.
|| Industrial Environmental Research Laboratory, Office of Environmental Engineering and Technology, U.S. Environmental Protection Agency,
Flue gases--Purification--Economic aspects. ;
Coal-fired power plants--Economic aspects. ;
Air pollution control equipment ;
Nitrogen oxides ;
Sulfur oxides ;
Fly ash ;
Economic analysis ;
Electric power plants ;
Industrial wastes ;
Combustion products ;
Electrostatic precipitators ;
Capitalized costs ;
Flue gases ;
Coal fired power plants ;
Air pollution economics ;
New source performance standards ;
Limestone scrubbing ;
Flue gas desulfurization
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||303 pages : illustrations ; 28 cm.
The report gives results of an EPA-sponsored economic evaluation of three processes to reduce NOx, SO2, and ash emissions from coal-fired utility power plants: one based on 3.5% sulfur eastern bituminous coal; and the other, on 0.7% sulfur western subbituminous coal. NOx control is based on an 80% reduction from current new source performance standards (NSPS); SO2 and fly ash control are based on meeting the current NSPS. Selective catalytic reduction (SCR) is used for NOx control with both coals. Limestone scrubbing and a cold-side electrostatic precipitator (ESP) are used with the 3.5% sulfur coal. Lime spray dryer flue gas desulfurization (FGD) and a baghouse for particulate collection are used with one 0.7% sulfur coal; and limestone scrubbing and a hot-side ESP, with the other. The economics consist of detailed breakdowns of the capital investments and annual revenue requirements. The 3.5% sulfur coal case is highest because of the higher SO2 control costs. The case with the spray dryer and baghouse is marginally lower in cost than that with limestone scrubbing and hot-side ESP. Costs for NOx control are 25 to 50% of the total costs.
Includes bibliographical references (pages 169-180). "February 1985." Microfiche.