Fuel oil: sulphur, ash and sodium brought down in one treatment
A residual fuel oil parcel arrived with sulphur, ash and sodium all above the buyer's limits. One chemical treatment brought the three down together; flash point and density held.
What was done
Desulphurisation by chemical reaction with metal deactivation, dosed and stirred in the laboratory on the buyer's own sample, then applied at parcel scale. The treated sample was tested by an independent ISO 9001 laboratory in Hamriyah. The full report, with its reference number, is available on request.
The report, row by row
| Test | Method | Before | After |
|---|---|---|---|
| Sulphur | ASTM D4294-21 | 0.2392 % mass | 0.0084 % mass |
| Ash | ASTM D482-19 | 0.52 % mass | 0.01 % mass |
| Sodium | ASTM D5185 | 269 mg/kg | 48 mg/kg |
| Kinematic viscosity at 50 °C | ASTM D445-21e1 | 12.18 cSt | 10.79 cSt |
| Density at 15 °C | ASTM D1298-12b | 1.0536 kg/L | 1.050 kg/L |
| Flash point | ASTM D93b-20 | 63 °C | 64 °C |
Independent ISO 9001 laboratory, Hamriyah Free Zone. Report available on request. Red marks the value before treatment; green, after; plain figures held within the method's repeatability.
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