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Show term commercial operation. Nevertheless, they are quite encouraging since they exceed the 60 percent NOx reduction goal by a substantial margin. CONCLUSION GR is primarily a N0x. emission control technology. Since it does not affect the design or operatl0n of the combustion system, GR may be integrated with a range of other emission control technologies, for greater NOx and/or SO~ control. GR is being demonstrated on three coal fired utility boilers as part of the DOE Clean Coal Technology Program. Initial field test results on a 71 MW tangentially fired unit have shown that NOx reduction has· exceeded the goal of 60 percent control. The test results closely match performance projections. ACKNOWLEDGMENTS Both projects are being conducted as part of the U.S . Department of Energy (DOE) Clean Coal Technology Program. The GR-SI project is funded by DOE through Cooperative Agreement No. DE-FC22-88PC79796; the Gas Research Institute through Contract No. 5087-254-1494; and the State of Illinois Department of Energy and Natural Resources through a Coal and Energy Development Agreement. The GR-LNB project is funded by DOE through Cooperative Agreement No. DE-FC22-90PC90547; the Gas Research Institute through Contract No. 5090-254-1994; Publ ic Service Company of Colorado through a Host Agreement, Colorado Interstate Gas Company; and the Electric Power Research Institute. REFERENCES 1. Reed, R. D., "Process for Disposal of Nitrogen Oxide," John Zink Company, U.S. Patent 1,274,637, 1979. 2. Sternling, C. V. et al., 14th Symposium (International) on Combustion, p. 897, The Combustion Institute, 1973. 3. Takahashi, Y. et al., "Development of Mitsubishi MACT In-Furnace NOx Removal Process," Presented at U.S. -Japan NOx Information Exchange, Tokyo, Japan, May 25-30, 1981. 4. Ogikami, N. et al., "Multistage Combustion Method for Inhibiting Formation of Nitrogen Oxides," U.S. Patent 4,395,223, 1983. 5. Borio, R. W. et. al., "Reburn Technology for Boiler NOx Control," ASME Winter Annual Meeting, San Francisco, California, December 1989. 6. Greene, S. B. et al., "Bench Scale Process Evaluation of Reburning and Sorbent Injection for In-Furnace NOx/SOx Reduction," EPA-600/7-85-012, March, 1985. 7. Greene, S. B. et al., "Bench Scale Process Evaluation of Reburning and Sorbent Injection for In-Furnace NOx Reduction," ASME Paper No. 84-JPGCAPC- 9, 1984. 8. Seeker, W. R. et al., "Controlling Pollutant Emissions from Coal and Oil Combustors Through the Supplemental Use of Natural Gas," Final Report, GRI 5083-251-0905, 1985. 9 |
