Division 2.1.1 BAT-AELs for emissions to air from a lower olefins cracker furnace
United Kingdom
Table 2.1
BAT-AELs for emissions to air of NOX and NH3 from a lower olefins cracker furnace
| Where the flue gases of two or more furnaces are discharged through a common stack, the BAT-AEL applies to the combined discharge from the stack. | ||
| The BAT-AELs do not apply during decoking operations. | ||
| No BAT-AEL applies for CO. As an indication, the CO emission level will generally be 10–50 mg/Nm3 expressed as a daily average or an average over the sampling period. | ||
| The BAT-AEL only applies when SCR or SNCR are used. | ||
| Parameter | BAT-AELsf1 f2 f3(daily average or average over the sampling period)(mg/Nm3, at 3 vol-% O2) | |
|---|---|---|
| New furnace | Existing furnace | |
| NOX | 60–100 | 70–200 |
| NH3 | < 5–15f4 | |
The associated monitoring is in BAT 1.
Annotations
Footnotes
- f1
-
Where the flue gases of two or more furnaces are discharged through a common stack, the BAT-AEL applies to the combined discharge from the stack.
- f2
-
The BAT-AELs do not apply during decoking operations.
- f3
-
No BAT-AEL applies for CO. As an indication, the CO emission level will generally be 10–50 mg/Nm3 expressed as a daily average or an average over the sampling period.
- f4
-
The BAT-AEL only applies when SCR or SNCR are used.