MEPC.340(77) equivalence: SO₂/CO₂ ratio must be ≤ 4.3 for 0.50 % global cap (or ≤ 21.7 for 3.5 % cap) when using an EGCS scrubber instead of compliant fuel.
Formula
$$ \frac{\text{SO}_2 [\text{ppm}] / 10^4}{\text{CO}_2 [%]} \leq {4.3 , (0.50%), ; 0.86 , (0.10%)} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $SO₂$ | Sulphur dioxide in dry exhaust | ppm | CEMS / portable analyser |
| $CO₂$ | Carbon dioxide | % v/v | CEMS / portable analyser |
Sources
- IMO Resolution MEPC.340(77).