Division BAT 54 In order to reduce sulphur emissions to air from off-gases containing hydrogen sulphides (H2S), BAT is to use all of the techniques given below.
United Kingdom
| May not be applicable for stand-alone lubricant or bitumen refineries with a release of sulphur compounds of less than 1 t/d | ||
| Technique | Description | Applicabilityf1 |
|---|---|---|
| (i) Acid gas removal e.g. by amine treating | See Section 1.20.3 | Generally applicable |
| (ii) Sulphur recovery unit (SRU), e.g. by Claus process | See Section 1.20.3 | Generally applicable |
| (iii) Tail gas treatment unit (TGTU) | See Section 1.20.3 | For retrofitting existing SRU, the applicability may be limited by the SRU size and configuration of the units and the type of sulphur recovery process already in place |
Annotations
Footnotes
- f1
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May not be applicable for stand-alone lubricant or bitumen refineries with a release of sulphur compounds of less than 1 t/d
Notes on Division
Footnotes
- f1
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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.