ArcelorMittal Minorca Mine Inc.

NOx 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

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] 8,760 hr [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 1,000.0 HP at 1800 RPM [101] 8,760,000 HP at 1800 RPM [104] 0.024 lb/hp-hr [106] 24.0 105.1 [112]

SV 027 EU 037 CE 027 --- Emergency Fire Pump Diesel Yes AP-42 NOx 300.0 HP at 2300 RPM [101] 2,628,000 HP at 2300 RPM [104] 0.024 lb/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

Emission Factor Potential to Emit

Question 6

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NOx PTE

Date Printed: 8/13/2012

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ArcelorMittal Minorca Mine Inc.

SO2 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 1,000.0 hp [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 300.0 hp [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

Throughput Emission Factor Potential to Emit

SV 014 - SV 017 EU 026 CE 014 - CE 017 ---

Description

Question 6

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SO2 PTE

Date Printed: 8/13/2012

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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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References

Date Printed: 8/13/2012

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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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References

Date Printed: 8/13/2012

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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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References

Date Printed: 8/13/2012

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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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References

Date Printed: 8/13/2012

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