Abstract
As part of the Combustion 2000 Program of the US Department of Energy, advanced low-emission boiler systems are being developed for future coal-fired power plants. These plants will be extremely clean, highly efficient and economic, by employing emerging and state-of-the-art technologies. The emissions of SOx, NOx and particulates from the plants will be much lower than the current new source performance standards (NSPS), and the net plant efficiency of generating electricity will be higher than that of today's pulverized-coal-fired utility plants. The high plant efficiency results in low fuel use and reduced emission of gases (CO2) associated with global warming. At present, engineering development of advanced systems is being conducted by three industry teams. The development work includes new emission control technologies, state-of-the-art boiler designs and low-temperature heat recovery systems for improved plant efficiencies, systems for improved ash disposability and reduced waste generation, and optimum system integration and plant controls. The technologies considered by these teams for low-emission boiler systems are discussed.
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