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Show I Page 11 I 1. Reduced flame contact with the waterwalls. 2. Reduced the CO to less than 50 ppm when firing either oil or gas. 3. Reduced the NOx when firing refinery fuel gas from 200 ppm to the 100 to 130 ppm range. 4. Reduced the 02 level when firing gas from 8% to 1 .6%. 5. Demonstrated firing oil at 300,000 Ibs steam/hr with less than 3% 02. 6. Replaced the UV flame scanners with IR scanners to solve the loss of the flame scanners' output signal during operation with oil firing in comDlnation with FGR. 7. Optimized the air register setting so one setting is suitable for both oil and gas firing. TOTAL QUALITY MANAGEMENT TEAM A joint meeting was held at the site in early March 1992 with the boiler manufacturer, the owner and John link to determine the action required to resolve the high NOx when firing refinery fuel gas problem. It was decided a TQM (Total Quality Management) team be assembled representing expertise from all three parties involved, John link, the boiler manufacturer, and the owner. The TQM team consisted from the owner's side - Three people responsible for the equipment operations at the refinery; two people responsible for technical approval. From John link - a vice president in charge of Burner Systems and myself, the Technical Manager of Burner Systems. From the Boiler Manufacturer - the Director of Projects. |