High Sulfur Fuel Oil (HSFO)

High Sulfur Fuel Oil (HSFO) Definition

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High Sulfur Fuel Oil (HSFO) is the bottom of the oil barrel with the lowest priced oil product now that is the alternative to using marine fuels with such low sulphur content. The HSFO have a maximum sulphur content of 3.5%.

HSFO is the alternative to using marine fuels with such low sulfur content in ECAs is the use of scrubbers. This technology involves injecting water into the exhaust stream to reduce sulfur and other emissions. However, refitting a ship with this technology costs several million euros and means that the ship is docked for a period of time, which leads to a loss in revenue and income for the shipowners. On the other hand, a scrubber allows higher-sulfur marine fuels to be used. In this context, such heavy fuel oils are designated as high-sulfur fuel oils (HSFO), which have a maximum sulfur content of 3.5% as permitted under ISO 8217. Huei Jie Oil is a big producer of HSFO in Iran.

HSFO 180 refer to aromatic rubber process oil with sulfur content around 3%.

HSFO Applications

  1. Heating up homes and fuel trucks.
  2. Lighting up furnaces.
  3. Producing steam for industrial uses and for generating electric energy.
  4. Used to power different types of engines, lamps, heaters, stoves and lanterns.
  5. Emergency generators

High Sulfur Fuel Oil (HSFO) CHARACTERISTICS

CharacteristicsTest MethodsLimitRME180
Density at 15oC, kg/m3ISO 3675 or 12185991
Kinematic viscosity at 50oC, mm2/sISO 3104180
Flash Point, oCISO 271960
Pour Point (upper) (2)oCISO 3016
Winter quality30
Summer quality30
Carbon residue, % (m/m)ISO 1037015
Ash, % (m/m)ISO 62450.10
Water, % (V IV)ISO 37330.50
Sulphur, % (m/m)ISO 87543.5
Vanadium mg/kgIP 501/IP 470/ISO 14579200
AluminumIP 501/IP 470/ISO 1457880
plus silicon, mg/kg
Total sediment, potential, % (m/m)ISO 10307-20.10