- Table 2 to Subpart OOOOa of Part 60—Required Minimum SO2 Emission Reduction Efficiency (Zc)

H2S content of acid gas (Y),
(%)
Sulfur feed rate (X), LT/D 2.0 ≤ X ≤ 5.0 5.0 < X ≤ 15.0 15.0 < X ≤ 300.0 X > 300.0 Y ≥ 5074.085.35X 0.0144Y 0.0128 or 99.9, whichever is smaller. 20 ≤ Y < 5074.085.35X 0.0144Y 0.0128 or 97.5, whichever is smaller97.5 10 ≤ Y < 2074.085.35X 0.0144Y 0.0128 or 90.8, whichever is smaller90.890.8 Y < 1074.074.074.074.0
[89 FR 62888, Aug. 1, 2024]