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PROTOTYPE SCALE TESTING OF LIMB TECHNOLOGY FOR A PULVERIZED-COAL-FIRED BOILER
England, G., D. Moyeda, Q. Nguyen, AND B. Folsom. PROTOTYPE SCALE TESTING OF LIMB TECHNOLOGY FOR A PULVERIZED-COAL-FIRED BOILER. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/R-96/062 (NTIS PB96-183850), 1996.
The report summarizes results of an evaluation of furnace sorbent injection (FSI) to control sulfur dioxide (SO2) emissions from coal-fired utility boilers. (NOTE: FSI of calcium-based sorbents has shown promise as a moderate SO2 removal technology.) The Electric Power Research Institute (EPRI) and the U.S. Environmental Protection Agency (EPA) have sponsored development of FSI since the early 1980s. FSI of lime for moderate SO2 removal was evaluated on the 61 MW tangentially fired boiler at Richmond Power and Light's Whitewater Valley station in Richmond, IN. A bituminous coal of about 2.5% sulfur was fired. This project, cosponsored by EPRI and the EPA, is one of three projects in the U.S. that will evaluate calcium-based FSI for SO2 control at utility scale. A sorbent injection system was installed and tested over a wide range of conditions. A flue gas humidification system was also installed and tested to enhance electrostatic precipitator performance during sorbent injection. The project emphasized the evaluation of a wide range of process parameters during relatively short term periods of operation to enhance understanding of the process, as opposed to a demonstration over an extended period of time under optimum sorbent injection conditions. The process parameters evaluated were sorbent type, boiler operating conditions, and injection parameters.