SYSTEM TO REDUCE NOX EMISSIONS FROM BIOMASS BOILERS

There is a need for today’s power plants to meet th e growing demand for electricity while achieving ef ficient combustion, low emissions, and no net CO 2 releases to the environment. Biomass boilers equi pped with new combustion techniques to enhance efficiency resulting in lower heat rates, a s well as new, proven emissions control devices to significantly reduce NO x and CO emissions, have been developed to meet this need. This paper will discuss a new, patented emi ssions control technology advancements using a system called the “ RSCR ® ”, which is a selective catalytic device applied to the relatively cold gas (after the boiler and particulate removal equipment) prior to its discharge to the stack, wit h NO x reductions of >70% and CO reductions >50% achieved. The paper will describe the overall performance of a typical biomass boiler plant using this new technology. The paper will also provide ac tual operating data on the RSCR, which has been ret rofitted to three existing biomass fired unit.