Heavy Oil

Heavy Oil Uses

Heavy Oil can also be used as a heating fuel in domestic and commercial boilers, a mix of heating oil and biofuel which is standardized and taxed slightly differently from diesel fuel used for transportation.

Older furnaces may contain rubber parts that would be affected by biodiesel’s solvent properties, but can otherwise burn biodiesel without any conversion required. Care must be taken, given that varnishes left behind by petrodiesel will be released and can clog pipes—fuel filtering and prompt filter replacement is required. Another approach is to start using biodiesel as a blend, and decreasing the petroleum proportion over time can allow the varnishes to come off more gradually and be less likely to clog. Due to biodiesel’s strong solvent properties, the furnace is cleaned out and generally becomes more efficient.

BioDiesel Properties

  • Biodiesel has promising lubricating properties and cetane ratings compared to low sulfur diesel fuels.
  • Fuels with higher lubricity may increase the usable life of high-pressure fuel injection equipment that relies on the fuel for its lubrication..
  • The calorific valueof biodiesel is about 37.27 MJ/kg. This is 9% lower than regular Number 2 petrodiesel.
  • Biodiesel gives better lubricity and more complete combustion thus increasing the engine energy output and partially compensating for the higher energy density of petrodiesel
  • The color of biodiesel ranges from golden to dark brown, depending on the production method. It is slightly misciblewith water, has a high boiling point and low vapor pressure. The flash point of biodiesel exceeds 130 °C (266 °F),] significantly higher than that of petroleum diesel which may be as low as 52 °C (126 °F). Biodiesel has a density of ~0.88 g/cm³, higher than petrodiesel (~0.85 g/cm³).
  • Biodiesel contains virtually no sulfur, and it is often used as an additive to ultra-low-sulfur diesel(ULSD) fuel to aid with lubrication, as the sulfur compounds in petrodiesel provide much of the lubricity.


Property/Test Method(ASTM-D) Specifications
Density @15 0 C kg/m3 1298/4052 Max 970
Flash Point (PMCC) 0 C 93 Min 60
Pour Point 0 C 97 Max 21.1
Sulphur Content % (w/w) 4294 Max 3.5
Redwood 1 @37.8 0 C Sec Max 800
Viscosity Kinematic @ 50 0 C 445 Report
Water content %(v/v) 95 Max 1.0
Ash % wt 482 Max 0.2
Conradson Carbon % w/w
or Micro Carbon Residue % w/w
Max 970
Sediment by Extraction ppm 473 Max 0.25
Caloric Value (gross) k.Cal/kg 240 Min 10200
Strong Acid No. KOH mg /g 974 Nil
Metal Contaminants
V 3605 Max 200 ppm
Na + K 3605 Report
Ca 3605 Report
Pb 3605 Report