**Atomizing Air**  **Fired North**  **South North**  **South Fan**  **% Measured NOx Emissions**  **Pellets Chamber**  **Chamber Chamber**  **Chamber Damper**  **Total Stoichiometric**  **Total lbs/million**  **Date LTPH**  **Burner Burner**  **Total Burner**  **Burner Total**  **% Open ACFM**  **lbs/min Air**  **PPM lbs/hr**  **PPM lbs/hr**  **PPM lbs/hr**  **PPM lbs/hr**  **lbs/hr lbs/LTP**  **Btu's** 0 #DIV/0! 0 **HE Stack #2 WBE Stack #3**  **WBE Stack #4 Hibtac Pelletizing Line 3 NOx Reduction Study**  **By Increasing A**

**tomizing Air Fan Airflow**

**Natural Gas (MCF/hr) Natural Gas (lbs/min)**  **Atomizing Air Fan HE Stack #1** **Probe Length**  **Into Ty** **pe Pelet**  **Stack Mine**  **Pellets Line**  **Stack Date**  **Time inches**  **NOx CO**  **O2** Hibtac Standard 3 Windbox Exhaust #3 3.47 111 Hibtac Standard 3 Windbox Exhaust #3 11 113 Hibtac Standard 3 Windbox Exhaust #3 20.4 114 Hibtac Standard 3 Windbox Exhaust #3 33.9 115 Hibtac Standard 3 Windbox Exhaust #3 71.1 115 Hibtac Standard 3 Windbox Exhaust #3 84.6 114 Hibtac Standard 3 Windbox Exhaust #3 94 112 Hibtac Standard 3 Windbox Exhaust #3 102 107 Hibtac Standard 3 Windbox Exhaust #3 3.47 112 Hibtac Standard 3 Windbox Exhaust #3 11 111 Hibtac Standard 3 Windbox Exhaust #3 20.4 108 Hibtac Standard 3 Windbox Exhaust #3 33.9 104 Hibtac Standard 3 Windbox Exhaust #3 71.1 101 Hibtac Standard 3 Windbox Exhaust #3 84.6 104 Hibtac Standard 3 Windbox Exhaust #3 94 104 Hibtac Standard 3 Windbox Exhaust #3 102 104 Hibtac Standard 3 Windbox Exhaust #3 Average 109 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 144,378 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 207.8 DSCMM = 4,086

NOx Emissions = 112 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,086

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 110 MCF/hr Natural Gas = 78 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing**  **Atomizing Air Fan Damper 25% Open** 

**Emission Reading (PPM) Probe**  **Length Into**  **Ty pe**  **Pelet Stack**  **Mine Pellets**  **Line Stack**  **Date Time**  **feet NOx**  **CO O2**  Hibtac Standard 3 Windbox Exhaust #4 10/1/02 14:15 3.47 144 Hibtac Standard 3 Windbox Exhaust #4 11 147 Hibtac Standard 3 Windbox Exhaust #4 20.4 150 Hibtac Standard 3 Windbox Exhaust #4 33.9 152 Hibtac Standard 3 Windbox Exhaust #4 71.1 151 Hibtac Standard 3 Windbox Exhaust #4 84.6 150 Hibtac Standard 3 Windbox Exhaust #4 94 148 Hibtac Standard 3 Windbox Exhaust #4 102 Hibtac Standard 3 Windbox Exhaust #4 3.47 Hibtac Standard 3 Windbox Exhaust #4 11 Hibtac Standard 3 Windbox Exhaust #4 20.4 Hibtac Standard 3 Windbox Exhaust #4 33.9 Hibtac Standard 3 Windbox Exhaust #4 71.1 Hibtac Standard 3 Windbox Exhaust #4 84.6 Hibtac Standard 3 Windbox Exhaust #4 94 Hibtac Standard 3 Windbox Exhaust #4 102 Hibtac Standard 3 Windbox Exhaust #4 Average 149 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 148,000 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 283.0 DSCMM = 4,188

NOx Emissions = 157 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,188

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 309 lbs/min Natural Gas = 112 MCF/hr Natural Gas = 79 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing At** **omizing A ir Fan Damper 100% Open** 

**Emission Reading (PPM)**

### Probe **Length Into**  **Type Pelet**  **Stack Mine**  **Pellets Line**  **Stack Date**  **Time feet**  **NOx CO**  **O2** Hibtac Standard 3 Hood Exhaust #1 3.47 70 Hibtac Standard 3 Hood Exhaust #1 11 70 Hibtac Standard 3 Hood Exhaust #1 20.4 70 Hibtac Standard 3 Hood Exhaust #1 33.9 70 Hibtac Standard 3 Hood Exhaust #1 71.1 69 Hibtac Standard 3 Hood Exhaust #1 84.6 68 Hibtac Standard 3 Hood Exhaust #1 94 67 Hibtac Standard 3 Hood Exhaust #1 102 64 Hibtac Standard 3 Hood Exhaust #1 3.47 72 Hibtac Standard 3 Hood Exhaust #1 11 71 Hibtac Standard 3 Hood Exhaust #1 20.4 71 Hibtac Standard 3 Hood Exhaust #1 33.9 70 Hibtac Standard 3 Hood Exhaust #1 71.1 70 Hibtac Standard 3 Hood Exhaust #1 84.6 67 Hibtac Standard 3 Hood Exhaust #1 94 66 Hibtac Standard 3 Hood Exhaust #1 102 64 Hibtac Standard 3 Hood Exhaust #1 Average 69 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 150,952 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 130.6 DSCMM = 4,272

NOx Emissions = 74 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,272

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 110 MCF/hr Natural Gas = 78 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing**  **Atomizing Air Fan Damper 25% Open** 

**Emission Reading (PPM)**

### Probe **Length Into**  **Type Pelet**  **Stack Mine**  **Pellets Line**  **Stack Date**  **Time feet**  **NOx CO**  **O2** Hibtac Standard 3 Hood Exhaust #2 3.47 54 Hibtac Standard 3 Hood Exhaust #2 11 53 Hibtac Standard 3 Hood Exhaust #2 20.4 53 Hibtac Standard 3 Hood Exhaust #2 33.9 52 Hibtac Standard 3 Hood Exhaust #2 71.1 51 Hibtac Standard 3 Hood Exhaust #2 84.6 51 Hibtac Standard 3 Hood Exhaust #2 94 49 Hibtac Standard 3 Hood Exhaust #2 102 45 Hibtac Standard 3 Hood Exhaust #2 3.47 52 Hibtac Standard 3 Hood Exhaust #2 11 50 Hibtac Standard 3 Hood Exhaust #2 20.4 52 Hibtac Standard 3 Hood Exhaust #2 33.9 52 Hibtac Standard 3 Hood Exhaust #2 71.1 53 Hibtac Standard 3 Hood Exhaust #2 84.6 53 Hibtac Standard 3 Hood Exhaust #2 94 54 Hibtac Standard 3 Hood Exhaust #2 102 55 Hibtac Standard 3 Hood Exhaust #2 Average 52 #DIV/0! #DIV/0!

Measured Waste Gas Stack Airflow = 157,796 DSCFM

NOx Emissions:

Mg/M3 = 154*(46/24.2) = 98.5 DSCMM = 4,466

NOx Emissions = 58 lbs/hr

CO Emissions:

Mg/M3 = 22*(28/24.2) = #DIV/0! DSCMM = 4,466

CO Emissions = #DIV/0! lbs/hr

Natural Gas Burner Primary Air = 249 lbs/min Natural Gas = 110 MCF/hr Natural Gas = 78 lbs/min **Hibtac Line 3 Emission Testing For NOx and CO**

**100% Natural Gas Firing At** **omizing A ir Fan Damper 25% Open** 

**Emission Reading (PPM)**