# ArcelorMittal Minorca Mine Inc. **NO x**  

# Potential to Em**it Calculations** Updated: 5/9/2012
**Stack Vent Emission Unit**  **Control Equipment Group Number** 
**ID ID**  **ID ID**  **Potential to Emit Emission Factor**  **Source Pollutant**  **(Units/hr) Units**  **Reference (Units/yr)**  **Units Ref**  **EF Units**  **Ref lbs/hr**  **tpy Ref**  SV 014 - SV 017 EU 026 CE 014 - CE 017
--- Indurating Machine - TOTAL Natural Gas Preheat + Primary

Burners Yes Permit Limit NOx 1 hr [103] 8,760hr [104] 1088 lb/hr [110] 1,088.0 4,765.4 [111] SV 026 EU 036 CE 026
--- Emergency Generator Diesel Yes AP-42 NOx 1,000.0HP at 1800 RPM [101] 8,760,000HP at 1800 RPM [104] 0.024lb/hp-hr [106] 24.0 105.1 [112] SV 027 EU 037 CE 027
--- Emergency Fire Pump Diesel Yes AP-42 NOx 300.0HP at 2300 RPM [101] 2,628,000HP at 2300 RPM [104] 0.024lb/hp-hr [106] 7.2 31.5 [112]

--- FS 001
--- --- Blasting Blasting No Title V App NOx 571 lb explosive/hr [105] 5,000,000 lb explosive/yr [102] 17 lb/ton explosive [107] 4.9 21.3 [113] **Description Throughput**  **Maximum Potential to Emit**  **Emission Factor** 

### Question 6 **Document 6 -** **1**

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# ArcelorMittal Minorca Mine Inc.

**SO 2** 

# Potential to Emit Calculations

Updated: 5/9/2012 **Stack Vent Emission Unit**  **Control Equipment Group Number**  **ID ID**  **ID ID**  **Potential to Emit Emission Factor**  **Source Pollutant**  **(Units/hr) Units**  **Reference (Units/yr)**  **Units Ref**  **EF Units**  **Ref lbs/hr**  **tpy Ref**  Indurating Machine - Preheat Burners Natural Gas Preheat Burners Yes (but see total) AP-42 SO2 80.0 mmbtu [101] 700,800 mmbtu [104] 0.00058 lb/mmbtu [108] 0.05 0.2 [111] Indurating Machine - Primary Burners Fuel Oil Primary Burners Yes (but see total) AP-42 SO2 250.0 mmbtu [101] 2,190,000 mmbtu [104] 2.0 lb/mmbtu [108] 500.00 2,190.0 [111] Indurating Machine - Induration SO2 from Ore Yes (but see total) Stack Test SO2 400.0 LT Pellets [101] 3,504,000 LT Pellets [104] 0.1680 lb/LT Pellets [109] 67.20 294.3 [111] Indurating Machine - TOTAL Preheat Burners + Primary Burners + Induration Yes Sum of Above SO2 --- --- --- --- --- --- --- --- --- 567.2 2,484.5 SV 026 EU 036 CE 026
--- Emergency Generator Diesel Yes AP-42 SOx 1,000.0hp [101] 8,760,000 hp [104] 0.00040 lb/hp-hr [106] 0.4 1.8 [112] SV 027 EU 037 CE 027
--- Emergency Fire Pump Diesel Yes AP-42 SOx 300.0hp [101] 2,628,000 hp [104] 0.00040 lb/hp-hr [106] 0.1 0.5 [112]

--- FS 001
--- --- Blasting Blasting No Title V App SOx 571 lbs explosive [105] 5,000,000 lbs explosive [102] 2 lb/ton explosive [107] 0.6 2.5 [113] **Maximum Potential to Emit**  **Throughput Emission Factor** 

SV 014 - SV 017 EU 026 CE 014 - CE 017
--- **Description** 

### Question 6 **Document 6 -** **1**

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# ArcelorMittal Minorca Mine Inc.

**Potential to Emit Calculations References** 

Updated: 5/9/2012 [101] Maximum rates 400 long tons pellets/hr EU 026 3,504,000 long tons pellets/year EU 026 80.0 MMBtu/hr EU 026 240.0 MMBtu/hr EU 026 1,040 Btu/scf EU 026 1,773 gal/hr EU 026 141,000.0 Btu/gal EU 026 250.0 MMBtu/hr 800 kW EU 036 1,000 HP at 1800 RPM EU 036 7.0 MMBtu/hr EU 036 300 HP at 2300 RPM EU 037 2.1 MMBtu/hr EU 037 [102] Maximum production rates for fugitive emission calculations from Title V Air Permit Application form EC-15 (1/13/1995) 5,000,000 lb explosive/yr FS 001 Estimate maximum capacity Maximum hourly * 8760 hours/year Preheat Burners (10 MMBtu/hr/burner * 8 burners)

Primary Burners on Oil (based on maximum oil burning gal/hr and Btu/gal) Primary Burners on Natural Gas (60 MMBtu/hr/burner * 4 burners) Primary Burners

Maximum Capacity from Title V Air Permit Application form EC-01 

# Question 6 **Document 6 -** **1**

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# 5,000,000 lb explosive/yr FS 001 [103] For calculations based on stack tests and lb/hr permit limits, assumes 8,760 hours per year. [104] Annual rate = hourly rate * 8,760 hours/year [105] hourly rate = annual rate / 8,760 hours/year [106] Emission factor from AP-42, 5th Edition, Section 3.4 'Large Stationary Diesel and all Stationary Dual-fuel Engines' Table 3.4-1 [107] Emission factor from Title V Air Permit Application, Form EC-01, January 13, 1995 [108] EU 026 Indurating Furnace Emission Factors from Title V Permit Application, Form EC-01, January 13, 1995 SO2 Natural Gas 0.6 lb/mmscf SO2 Fuel Oil 2 lb/mmbtu Maximum Capacity from Title V Air Permit Application form EC-01

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# [109] SO2 from Induration Process. Assume all SO2 emitted from induration is from sulfur in ore. Calculate emission factor based upon maximum stack test multiplied by 2 to account for ore sulfur content variability Emission Factor = Maximum Stack Test (lb/LT) * 2

Date Stack Test lb SO2 / LT 6/17/1997 0.0840 6/19/2007 0.0246 3/22/2008 0.0560 4/1/2009 0.0664 Max 0.0840 Emission Factor for Induration 0.1680 [110] Indurating Furnace NOx Permit Limit (1,088 lb/hr) distributed between the 4 stacks based on stack test data Stack A 17.4% 189.3 lb/hr Stack B 19.3% 210.4 lb/hr Stack C 28.0% 304.2 lb/hr Stack D 35.3% 384.1 lb/hr TOTAL 100.0% 1,088.0 lb/hr [111] Emissions calculation: Hourly Controlled Emissions = Controlled EF (lb/unit) * XXX units/hr Annual Controlled Emissions = Controlled EF (lb/unit) * XXX units/yr * ( 1 ton / 2,000 lb) [112] Emissions calculation:

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# [112] Emissions calculation: Hourly Controlled Emissions = Controlled EF (lb/hp) * XXX hp/hr Annual Controlled Emissions = Controlled EF (lb/hp) * XXX hp/yr * ( 1 ton / 2,000 lb) [113] Emissions calculation: Hourly Controlled Emissions = Controlled EF (lb/ton explosive) * XXX lb explosive/hr * (1 ton /2,000 lb) Annual Controlled Emissions = Controlled EF (lb/ton explosive) * XXX lb explosive/yr * (1 ton /2,000 lb) * (1 ton/2,000 lb)

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