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ASSESSMENT OF CONTROL TECHNOLOGIES FOR REDUCING EMISSIONS OF SO2 AND NOX FROM EXISTING COAL-FIRED UTILITY BOILERS
White, D. AND M. Maibodi. ASSESSMENT OF CONTROL TECHNOLOGIES FOR REDUCING EMISSIONS OF SO2 AND NOX FROM EXISTING COAL-FIRED UTILITY BOILERS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-90/018 (NTIS PB90-273574), 1990.
The report reviews information and estimated costs on 15 emissioncontrol technology categories applicable to existing coal-fired electric utility boilers. he categories include passive controls such as least emission dispatching, conventional processes, and emerging technologies still undergoing pilot scale and commercial demonstration. he status of each technology is reviewed relative to four elements: (1) Description--how the technology works; (2) Applicability--its applicability to existing plants; (3) Performance--the expected emissions reduction; and (4) Costs--the capital cost, busbar cost, and cost per ton of SO2 and NOx removed. osts are estimated for new and retrofit applications for various boiler sizes, operating characteristics, fuel qualities, and boiler retrofit difficulties. apital costs vary from $2/kW for overfire air to $2800/kW for integrated gasification combined cycle in 1988 dollars. NOTE: A major objective of the National Acid Precipitation Assessment Program is to evaluate alternative methods for reducing SO2 and NOx emissions from combustion sources and to identify options which appear most promising from both an emissions reduction and cost standpoint. Part of this overall effort is to develop up-to-date generic assessments of commercial, near-commercial and emerging emission control technology categories applicable to these utility boilers.)