Regulations last checked for updates: May 18, 2024

Title 40 - Protection of Environment last revised: May 16, 2024
Appendix - Table 1 to Subpart OOOO of Part 60—Required Minimum Initial SO2 Emission Reduction Efficiency (Zi)
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 ≥ 5079.088.51X 0.0101Y 0.0125 or 99.9, whichever is smaller.
20 ≤ Y < 5079.088.51X 0.0101Y 0.0125 or 97.9, whichever is smaller97.9
10 ≤ Y < 2079.088.51X 0.0101Y 0.0125 or 93.5, whichever is smaller93.593.5
Y < 1079.079.079.079.0
[78 FR 58447, Sept. 23, 2013]
authority: 42 U.S.C. 7401
source: 36 FR 24877, Dec. 23, 1971, unless otherwise noted.