['Air Programs']
['Air Quality']
05/09/2024
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| 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 |
X = The sulfur feed rate from the sweetening unit (i.e., the H 2 S in the acid gas), expressed as sulfur, Mg/D(LT/D), rounded to one decimal place.
Y = The sulfur content of the acid gas from the sweetening unit, expressed as mole percent H 2 S (dry basis) rounded to one decimal place.
Z = The minimum required sulfur dioxide (SO 2) emission reduction efficiency, expressed as percent carried to one decimal place. Z i refers to the reduction efficiency required at the initial performance test. Z c refers to the reduction efficiency required on a continuous basis after compliance with Z i has been demonstrated.
[89 FR 17043, Mar. 8, 2024]
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