NOx Control for Stationary Sources and Utility Applications

NOx control is coming to electric generation utilities and industrial plants in a big way. Federal regulations, ozone non-attainment areas, ozone “transport regions,” acid rain provisions of the Clean Air Act, and corporate goals for emission reductions are all motivators. This paper explores regulations, the chemistry of NOx formation, and practical and cost-effective ways to reduce NOx at its source, as well as “end-of-pipe” methods for the major targets: coal fired boilers, gas and oil boilers, and gas turbines.