Authority: IC 13-14-8; IC 13-17
Affected: IC 13-15
Sec. 14.
The following sources and emissions units located in Porter County shall comply with the sulfur dioxide emission limitations in pounds per million Btu (lbs/MMBtu) and pounds per hour (lbs/hr), unless otherwise specified, and other requirements:
Facility Description | Emission lbs/MMBtu | Limitations lbs/hr |
(i) Blast Furnace C Stoves | 0.83 | 545 |
(ii) Blast Furnace D Stoves | 0.83 | 545 |
(iii) Sinter Plant Windbox | 1.0 pound per ton process material | 400 |
(iv) No. 1 Coke Battery Underfire | 1.73 | 803 |
(v) No. 2 Coke Battery Underfire | 1.96 | 911 |
(vi) 160 inch Plate Mill Continuous Reheat Furnace No. 1 and Boiler No. 1 | 1.96 | 29.9 |
(vii) 160 inch Plate Mill Continuous Reheat Furnace No. 2 and Boiler No. 3 | 1.96 | 299 |
(viii) 80 inch Hot Strip Mill Furnace No. 1, 2, and 3 | 1.96 | 79 each |
(ix) 110 inch Plate Mill Furnaces No. 1 and 2 | 1.96 | 44.1 |
(x) 110 inch Plate Mill Normalizing Furnace | 1.07 | 88 |
(xi) 160 inch Plate Mill I & O Furnaces No. 4 and 5 | 1.96 | 27.4 |
(xii) 160 inch Plate Mill I & O Furnaces No. 6 and 7 | 1.96 | 27.4 |
(xiii) Power Station Boiler No. 7 | 0.8 | 520 |
(xiv) Power Station Boilers No. 8, 9, 10, 11, and 12 | 1.45 | 2,378 |
(xv) Blast Furnace Gas Flare | 0.50 | N/A |
Where: Elb/mmbtu = The emission rate in units of the standard in pounds per one million (1,000,000) British thermal units (lb/MMBtu).
Cgr/dscf = The sulfur concentration, as measured by ASTM D 6228 in units of grains per dry standard cubic feet.
mol S = Molar mass of sulfur.
mol SO2 = Molar mass of sulfur dioxide.
Fd = Volume of combustion components per unit of heat content in units of standard cubic feet per one million (1,000,000) British thermal units (scf/MMBtu).
Where: Fd = Volume of combustion components per unit of heat content in units of scf/mmBTU.
%H = Concentration of hydrogen from ultimate analysis of fuel, weight percent.
%C = Concentration of carbon from ultimate analysis of fuel, weight percent.
%S = Sulfur content of as-fired fuel, dry basis, weight percent.
%N = Concentration of nitrogen from ultimate analysis of fuel, weight percent.
%O = Concentration of oxygen from ultimate analysis of fuel, weight percent.
GHV = Gross calorific value of the fuel determined by ASTM D 3588, Btu/lb. The equation presumes that sulfur concentration will be measured in gr/dscf. If sulfur is measured in parts per million (ppm), the equation will require an adjustment using standard temperature and pressure (STP) defined as sixty-eight (68) degrees Fahrenheit and one (1) standard atmosphere (atm).
Facility Description | Emission Limitations lbs/MMBtu |
Gas Turbine 10 | natural gas only |
Facility Description | Emission Limitations lbs/MMBtu |
Babcock and Wilcox Boiler 1 and Erie City Boilers No. 1, 2, and 3 | 1.33 each |
Only two (2) of four (4) boilers may burn fuel oil with a sulfur dioxide emission rate greater than three-tenths (0.3) pounds per million Btu at the same time. Midwest Steel shall maintain records of fuel type for each boiler for each hour. The records of fuel type shall be made available to the department upon request.
Facility Description | Emission Limitations |
All boilers and the No. 3 Hydrogen Reformer | natural gas only |
326 IAC 7-4-14