Division BAT 51: In order to reduce emissions of organic compounds to air from the desorption of CO2 from the scrubbing medium used in the EO plant, BAT is to use a combination of the techniques given below.
United Kingdom
| Technique | Description | Applicability | |
|---|---|---|---|
| Process-integrated techniques | |||
| a. | Staged CO2 desorption | The technique consists of conducting the depressurisation necessary to liberate the carbon dioxide from the absorption medium in two steps rather than one. This allows an initial hydrocarbon-rich stream to be isolated for potential recirculation, leaving a relatively clean carbon dioxide stream for further treatment. | Only applicable to new plants or major plant upgrades |
| Abatement techniques | |||
| b. | Catalytic oxidiser | See Section 12.1 | Generally applicable |
| c. | Thermal oxidiser | See Section 12.1 | Generally applicable |
Table 6.1
BAT-AEL for emissions of organic compounds to air from the desorption of CO2 from the scrubbing medium used in the EO plant
| The BAT-AEL is expressed as an average of values obtained during 1 year. | |
| In the case of significant methane content in the emission, methane monitored according to EN ISO 25140 or EN ISO 25139 is subtracted from the result. | |
| EO produced is defined as the sum of EO produced for sale and as an intermediate. | |
| Parameter | BAT-AEL |
|---|---|
| TVOC | 1–10 g/t of EO producedf1 f2 f3 |
The associated monitoring is in BAT 2.
Annotations
Footnotes
- f1
-
The BAT-AEL is expressed as an average of values obtained during 1 year.
- f2
-
In the case of significant methane content in the emission, methane monitored according to EN ISO 25140 or EN ISO 25139 is subtracted from the result.
- f3
-
EO produced is defined as the sum of EO produced for sale and as an intermediate.