OCR Text |
Show is also planned. Modifications to the probe design will also be made to allow for sampling systems with S02/S03 and fly ash, etc., in the flue gas. A Phase III field demonstration of the Phase II NH3 probe system is planned for late 1992/ear1y 1993 on an SNCR system installed on a boiler . TABLE 1. LABORATORY TEST RESULTS Inlet NH3 Gas Measured NOx NH3 to NO Concentration Velocity Temperature Concentration Conversion Run (ppm) (m/sec) (K) (ppm) (%) 1a 56.7 0.03 1,204 41 71 Ib 56.7 0.03 1,213 49 86 2a 56.7 0.12 1,209 44 78 3 56.7 0.17 1,059 41 73 4 56.7 0.17 878 35 62 5 56.7 0.23 1,198 45 80 2b 57.2 0.12 1,212 45 79 2c 57.2 0.12 1,212 36 63 6a 96 0.03 1,209 18 19 6b 96 0.03 1,198 3 3 7 96 0 . 06 1,205 65 67 8a 96 0.12 1,209 85 89 8b 96 0.12 1,214 77 80 8 96 0.12 1,212 93 97 9 96 0.17 878 75 78 10 96 0.17 694 4 5 11 96 0.17 1,212 84 87 12a 96 0.238 1,205 92 96 12b 96 0.23 1,211 88 91 12 96 0.23 1,208 93 97 13 96 0.23 1,238 94 98 14 29b 0.12 1,212 24 83 8Reactor modified. blnitial gas mixture contained 25 ppm of NO. . 9 |