Division

United Kingdom

BAT-associated environmental performance levels (BAT-AEPL): See Table 17.

Table 17

BAT-associated environmental performance levels for a waste gas sulphur (H₂S) recovery system

	BAT-associated environmental performance level (monthly average)
Sulphur recovery efficiency is calculated over the whole treatment chain (including SRU and TGTU) as the fraction of sulphur in the feed that is recovered in the sulphur stream routed to the collection pits. When the applied technique does not include a recovery of sulphur (e.g. seawater scrubber), it refers to the sulphur removal efficiency, as the % of sulphur removed by the whole treatment chain.
Acid gas removal	Achieve hydrogen sulphides (H₂S) removal in the treated RFG in order to meet gas firing BAT-AEL for BAT 36
Sulphur recovery efficiency^f1	New unit: 99,5 – > 99,9 %
Sulphur recovery efficiency^f1	Existing unit: ≥ 98,5 %

The associated monitoring is described in BAT 4.

BAT 54In order to reduce sulphur emissions to air from off-gases containing hydrogen sulphides (H2S), BAT is to use all of the techniques given below.

Annotations

Footnotes

f1

Sulphur recovery efficiency is calculated over the whole treatment chain (including SRU and TGTU) as the fraction of sulphur in the feed that is recovered in the sulphur stream routed to the collection pits.

When the applied technique does not include a recovery of sulphur (e.g. seawater scrubber), it refers to the sulphur removal efficiency, as the % of sulphur removed by the whole treatment chain.