OCR Text |
Show 7,000 • Gas Reburn :0- 6,000 ~ • OEAS Q) > 0E • Oxy-Fuel Q) 5,000 ~ ~ )( Oxy-Fuel 0Z t ~ (rebuild c: 4,000 ~ scheduled) 0 ~~ ~ NOaxty. gGena s= =4 $0 3 $.5lt0o/nm mBtu (5 3,000 - ~ Initial NO = 7 Iblton 'E x 0 (.) - 2,000 - 0 rn 0 (.) 1,000 - I Z 0 I I I 0 2 3 4 Final NOx (Ib/ton glass) Figure 10. Cost of control for container glass furnace (7 Ib/ton initial NO ). It 3,000 ~ 2,500 ~ o> E Q) ~)( 2,000 - oz c: o ~ 1,500 - (5 -~ 8c: 1,000 - -o 8rn 500- 0 0 Figure 12. t • Gas Rebum t • OEAS ~ • Oxy-Fuel Oxy-Fuel ~ (rebuild scheduled) Nat. gas = 3.50 SlmmBtu Oxygen = 40 $/ton InitiaJ NO = 14 Iblton x I I 1 I I I I I 2 3 4 5 6 7 Final NO (Ib/ton glass) x Cost of control for flat glass furnace. 8 7,000 • • Gas Reburn :0- 6,000 ~ X LNB Q) > 0 • OEAS E Q) 5,000 ~ ~ ~ • Oxy-Fuel )( 0 Zc: 4,000 - Oxy-Fuel 0 ~ (rebuild ~ scheduled) (5 3,000 - ~ Nat. gas = $3.50/mmBtu 'E Oxygen = 40 Slton (0.) Initial NO =4 .5 Ib/ton 2,000 ~ x '0 • rn • 0 (.) 1,000 ~ X 0 I I 1 I I 0.0 0.5 1.0 1.5 2.0 2.5 3.0 Final NOx (Ib/ton glass) Figure 11. Cost of control for container glass furnace (4.5 Ib/ton initial NO ). It 7,000 Cost of O2 = 40 $/ton - 1:J Initial NO x =7 Iblton Q) 6,000 > 0 E Q) ... 5,000 Oxy-Fuel )( -------- 0 Z c: 0 -~ -0.. . c: 0 U --0 (/) 0 U 18 4,000 3,000 o~ (rebuild scheduled) 2,000 ~ 1,000 :;::::::=- OEAS o o 1 234 567 Cost of Natural Gas ($/mmBtu) Figure 13. Impact of natural gas cost on cost of control for container glass furnace . |