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Show 17 It should be noted that these results were obtained in a bench-scale facility. Testing in larger-scale facilities is essential; in this manner, linkages can be established between laboratory-scale facilities and field units. ABB CE is actively engaged in larger experimental and commercial measurements, and welcomes the availability of information being generated by DOE and Electric Power Research Institute (EPRI) under various air toxies related programs. Concluding Remarks Preliminary results obtained from this study indicate that coal combustion can result in the emissions of organic HAPs (VOCs, SVOCs and PAHs). They, however, do not support the hypothesis that low NOx firing necessarily exacerbate the emissions of these mia-opollutants. Furthermore, the emissions levels determined were quite low as compared to US EPA's MACT stipulations. It should be bome in mind that metal emissions (Hg, Se, As, Pb, etc.), which are likely to be greater, were not part of this investigation. These emissions are also under study by ABB CEo Lastly, testing in larger-scale facilities is essential so that linkages between different scale facilities can be established. Work is on-going at ABS CE to meet anticipated future challenges in this area. Acknowledgments The authors appreciatively acknowledge the following ABS personnel for their invaluable contributions in taking the experimental data, participating in the data analysis, and/or providing constructive critique of this work: G. Bums, R. Jackobek, R. Kunkel, M. Rini, J. Sutton, G. Tessier and M. Toqan. Financial support of this work was provided by ABS Corporate Research Center, ASS CE Services and ASS CE Systems. |
