Biodiesel information

Biofuel Systems Group Limited
Biodiesel - general information
Company Information
  • The technical definition of biodiesel is a fuel suitable for use in compression ignition (diesel) engines that is comprised of fatty acid monoalkyl esters derived from biologically produced oils or fats including vegetable oils, animal fats and microalgal oils.
  • Biodiesel is an alternative fuel which can be made using a simple chemical process from waste vegetable oil. It can be used directly in any diesel engine, either neat or mixed in any ratio with petroleum diesel.
  • It is a green fuel, does not contribute to the carbon dioxide (CO2) burden and produces drastically reduced engine emmisions. It is non-toxic and biodegradable.
  • Biodiesel has a much higher lubricity than petroleum diesel and its use can prolong engine life...
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Biodiesel advantages

- Renewable - vegetable oil derived

- Dramatically reduced emissions


- Carbon Neutral

- Biodegradable


- Non-toxic

- Less noxious - fuel & exhaust emmisions


- Used directly in unmodified diesel engine

- Biodegradable


- Higher Lubricity - can prolong engine life

- High flashpoint - safer to store & transport


- Simple to make


- Used neat or blended in any ratio with petroleum diesel

Biodiesel disadvantages
  • Availability - very few outlets & manufacturers. Fuel giants have not explored / invested in emerging biofuel technology such as algal oil / biologically produced fuels
  • Poorly made biodiesel of low quality can cause engine problems
  • Producing biodiesel without proper equipment and safety precautions can be dangerous (Link to HSE publication regarding domestic production of biodiesel:
  • Unsustainably produced biodiesel has tarnished the green image of biofuels. For example in countries that have allowed rainforests to be cleared to grow biofuel crops, or instances where food producing land has been turned over to biofuel crops. (Biofuel Systems Group encourage sustainable biofuel production, such as biodiesel production from used cooking oil. We actively seek to dissuade unsustainable biofuel production)
Biodiesel - clean, green fuel
  • Renewable - Biodiesel is derived from vegetable oil which is essentially grown - a sustainable resource that will not run out. Petroleum diesel is derived from crude oil, which is finite and will eventually run out.
  • Carbon Neutral - Biodiesel use does not lead to any overall change in the amount of CO2 in the atmosphere. The vegetables from which the oil has been extracted remove CO2 from the atmosphere to grow. When biodiesel is burned the CO2 is released back into atmosphere.
  • Less noxious, non-toxic - Biodiesel lacks the unpleasant odour of petroleum diesel and exhaust emissions smell like a barbecue! Users can expect a near 100% reduction in Sulphur dioxide (SO2), 40-60% reduction in soot & particulates, 10-50% reduction in Carbon monoxide, and a reduction in all Poly Aromatic Hydrocarbons PAHs - Phenanthren -97%, Benzofluoroanthen -56%, Benzapyren -71%, Aldehydes & Aromatics -13%.
  • Unlike petroleum diesel, it is biodegradable.
Other biodiesel advantages
  • Simple to make, and can be produced from waste vegetable oil.
  • Classed as non-hazardous because it is non-toxic and has a high flash-point.
  • Burns more efficiently than petroleum diesel.
  • Substantially higher lubricity means it can reduce engine wear and hence prolong engine life.
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