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Table 4-1:   Summary of SCAQMD NOx rules

Rule 474 — Fuel Burning Equipment — Oxides of Nitrogen

Emission Source

Non-Mobil Fuel Burning Equipment

Steam Generating Equipment

Heat Rate (MBtu/hr)

555 to 1,785

1,786 to 2,142

>2,143

>555

Fuel

Gas

Oil

Gas

Oil

Gas

Oil

Gas

Oil

NOx Emissions

 (ppmvd @ 3% O2)

 (lb/MMBtu)

300

0.37

400

0.52

225

0.28

325

0.42

125

0.15

225

0.29

125

0.15

225

0.29

Rule 1109 — Emissions of Oxides of Nitrogen for Boilers and

Process Heaters in Petroleum Refineries

Emission Source

Boilers and Process Heaters in Petroleum Refineries

NOx (lb/MMBtu)

0.03

Rule 1110.2 — Emissions from Stationary Internal Combustion Engines

(gaseous- & liquid-fueled)

Emission Source

Stationary Internal Combustion Engines

Energy Consumption (Btu/bhp-hr)

8000

NOx Emissions

 (ppmvd @ 15% O2)

 (lb/MMBtu)

 (g/bhp-hr)

36

0.121

0.44

Rule 1134 — Emissions of Oxides of Nitrogen from Stationary Gas

34

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