SOx Scrubber - NaOH Dosing Rate
NaOH consumption rate for a closed-loop EGCS - dependent on fuel sulphur mass flow and stoichiometry.
S in fuel
1.000t/day
Pure NaOH needed
2.43t/day
NaOH solution (50 %)
4.85t/day
Formula, assumptions, and limits
Stoichiometry: 1 mol S + 2 mol NaOH → Na₂SO₄. Apply 10 % excess in practice. Closed-loop scrubbers also generate wash-water that must meet MEPC.184(59) discharge criteria.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Sulphur mass flow | t/day | FOC × S% | |
| SO₂ removal efficiency | - | OEM data |