The paper describes work in several areas relating to reducing SO2 and NOx emissions from coal-fired utility boilers and provides an overview of objectives, approach, current status, and plans for each. In addition, it describes plans for a small-scale selective catalytic reduction system. SO2 and NOx are major pollutants resulting from fuel combustion. Coal-fired utility boilers account for about 65% of the SO2 and 29% of the NOx emissions in the U.S. These pollutants are generally believed to be major precursors of acid rain, and their control is a significant concern of the U.S. EPA, the utility industry, and other private and public organizations. The national strategy for reducing acid rain is still being debated in Congress; the choice of a strategy will determine the control techniques for limiting SO2 and NOx emissions from utility boilers and will most likely include a mix of technologies to achieve the desired reduction at minimum cost.

"Richard D. Stern, project officer." "Presented at the 14th International Conference on Coal and Slurry Technology, Clearwater, FL, 4/24 - 27, 1989." "EPA-600/D-89/041." Microfiche.