OCR Text |
Show NOx EMISSIONS: OPPOSED-FIRING , IBS k W Firing Rata > Fuel and Oxidant injected from Opposite Sides of Furnace • 2-3% Oa (vol. wet) at Flue o.OJ , NO. Emissions < 0.008 g MJ (ISppmd) ^. -T.-1371K - N » < 5 6 % "O" 0.02 Not Oo./O o A O B a, C v 0 • Not. Co./Ait • F / / : ,° i i i i / • *J? ptx&r*;- ' ) 20 40 60 e 70 fin 50 40 30 ?n 10 BO 100 Nf, X (vol. wet) \PRAXAIR NOx EMISSIONS: BURNER TYPE , 185 k W Firing Rata , 2 5 % Ch (vol wet) at Flue ,T>1370K i NO. Emissions for D O C Burner Two Orders Of Magnitude Leaa Than Convention a* Burner System ^a Coo.lol-Tuba Burnar / i Slog.d Coo.lal-Tub. Burnar _ - ** * Dilute Oiygen Combustion Bu e/ , n.r 20 40 60 80 100 N(, X (vol. wet) iPRAXAIR NOx EMISSIONS: Temp., %N2 10"' . 185 k W Firing Rate • Co-Firing Arrangement • 2.5% Oj (vol. wet) at Flue io~' • NO. Emissions Increase with - Increasing Temp. 2 - Increasing N2 Concentration o> 3 .NO. Emissions < 0.006 pyMJ 0 (10 ppmd) E -T.<1550K - N i < 4 0 % ,n-4 • C O < 35 ppmd (typ.) 10~5 - »--""' * " - * * " »• • a* - •"" - - " ,«~~-'*" tr' ^ % 0 •'•sri*' a is* N tr A 6 41 Nj 0 IMN, O 4}» N, V 54* N, a 771 N 10* E a ">' 1" N 10° 0 2" | 10-1 - z 1100 1200 1300 1400 1500 1600 T , K mPRAXAIR SCALE-UP BURNER TESTS • Co-Firing Arrangement . N A M C O Furnace D 005° -2.3 2.3 9.1 m(7.5 7.5 30 rt) 0 0040 -Tf~1477K(2200°F) - Low Furnace N2 Content 3 o oojo a Low NOx Emissions Achieved •« • NOx Emission Scaling Law £ °°°2° Being Developed 0.0010 Firing Rota, M M S t u /h S.0 S.5 SO |.| 7.0 7.5 1.0 O 0 0 1.4 l.t 1.S 2.0 2.2 2 Firing Rote. MW mmpRAXAiR 10 ' E a D 0~ M m 0 1 ? • 0" z |