Division BAT 45 In order to reduce non-methane volatile organic compounds (NMVOC) and methane (CH4) emissions to air from the combustion of natural gas in spark-ignited lean-burn gas engines, BAT is to ensure optimised combustion and/or to use oxidation catalysts.
United Kingdom
Table 26
BAT-associated emission levels (BAT-AELs) for formaldehyde and CH4 emissions to air from the combustion of natural gas in a spark-ignited lean-burn gas engine
| For existing plants operated < 500 h/yr, these levels are indicative. | |||
| This BAT-AEL is expressed as C at full load operation. | |||
| Combustion plant total rated thermal input (MWth) | BAT-AELs (mg/Nm3) | ||
|---|---|---|---|
| Formaldehyde | CH4 | ||
| Average over the sampling period | |||
| New or existing plant | New plant | Existing plant | |
| ≥ 50 | 5–15f1 | 215–500f2 | 215–560 |
Annotations
Footnotes
- f1
-
For existing plants operated < 500 h/yr, these levels are indicative.
- f2
-
This BAT-AEL is expressed as C at full load operation.