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Regulations last checked for updates: Apr 04, 2025
Title 40 - Protection of Environment last revised: Feb 04, 2028
All Titles
Title 40
Chapter I
Part 60
Subpart OOOOb
Appendix - Table 4 to Subpart OOOOb of Part 60—Required Minimum SO2 Emission Reduction Efficiency (Zc)
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Appendix - Table 4 to Subpart OOOOb of Part 60—Required Minimum SO2 Emission Reduction Efficiency (Zc)
Table 4 to Subpart OOOO
b
of Part 60—Required Minimum SO
2
Emission Reduction Efficiency (Z
c
)
H
2
S 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 ≥ 50
74.0
85.35X
0.0144
Y
0.0128
or 99.9, whichever is smaller.
20 ≤ Y < 50
74.0
85.35X
0.0144
Y
0.0128
or 97.5, whichever is smaller
97.5
10 ≤ Y < 20
74.0
85.35X
0.0144
Y
0.0128
or 90.8, whichever is smaller
90.8
90.8
Y < 10
74.0
74.0
74.0
74.0
[89 FR 62917, Aug. 1, 2024]
authority:
42 U.S.C. 7401
source:
36 FR 24877, Dec. 23, 1971, unless otherwise noted.
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