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Show 22 CONCLUSIONS Based on the results of field tests carried out at Huntington Park, it is concluded that - 1. Combustion air staging, with injection of a steady oxidant downstream of the primary flame, is very effective in significantly reducing NOx emissions. 2. The amount of NO x generated is not a function of the type of secondary oxidant. 3. Moderate levels of CO (up to 5000 vppm) can be effectively burned out within the regenerator in the presence of even small amounts of excess air (0.5%) in the top of the regenerator. 4. The changes made to the furnace and the operation of air staging is basically transparent to the furnace operators. The glass pull rate and the glass quality are unaffected. ACKNOWLEDGMENTS A number of organizations and persons have contributed to the successful development of this technology. Their contributions are gratefully acknowledged. Anchor G lass Container: Combustion Tec, Inc.: Institute of Gas Technology: REFERENCES CITED Mr. William Benz Mr. John Blair Mr. Glenn C. Neff, Sr. Mr. William Hobson Mr. Mark Khinkis Mr. Walter Kunc 1. Barklage-Hilgefort, H., "Reduction of NO x Emission of Glass Melting Furnaces by Primary Measures. " 2. Abbasi, H. A. and Fleming, D. K., "Development of NO x Control Methods for Glass Melting Furnaces," Final Report GRI-87/0202, Chicago, August 1987. 3. Moilanen, G. L., Van Kalsbeek, B. and McQueen, A., "Glass Furnace Applications of SNCR NOx Control Technology: Comparison of Predicted and Actual Performance," in Wilcox, D. L. and Bergernon, C. G., Eds., in Proceedings of the 52nd Conference on Glass Problems. Westerville, Ohio: The American Ceramic Society, Inc., November 12-13, 1991. 4. Abbasi, H. A., Khinkis, M. 1. and Fleming, D. K., "Development of NO x Control Methods for Glass Melting Furnaces," Annual Report GRI-84/0053, Chicago, September 1983. 5. Carvalho, M. and Lockwood, F. C., "Thermal Comparison of Glass Furnace Operation With Oil and Natural Gas," Glastech. Ber. 63, No.9 (1990). (P-002\1194Maui.doc |