Why Are Additives Needed in Biofuels?

If you're contemplating using biofuels such asfresh and can still be used effectively. This is ideal for
biodiesel and bioethanol, or you're already a convert,refineries who supply fuel to forecourts and other
then you will be aware of the environmental benefitssuppliers.
of using renewable fuels.7. Biofuels are used all over the world, and different
1. Biofuels can be made from a wide range ofcountries and environments will use different blends.
sources including vegetable waste, animal fats andIn cold condition, the biodiesel needs to have a cold
from crops grown specially to be used as fuel.flow improver added to it to ensure that it flows and
2. Additives are often needed to help to reduce thepours properly in cold climates. This means that the
formation of deposits in engines, which can affectengine will still work even in very low temperatures
the performance of the engine, and to help theand the vehicles or other machinery will still function.
engine run smoother and reduce wear and tear onThere would be no point in selling fuel in cold
components.countries that didn't work when the temperature
3. Fuels made from bioethanol can absorb water anddropped.
create potential corrosion problems at the refining8. Fuel suppliers, terminals and vehicle manufacturers
and blending plant.may have specific requirements for their fuel. This
4. A wide range of antioxidants, stabilisers, cold flowmay be to do with the weather, the type of vehicle
improvers, cetane improvers and performanceor the conditions in which the vehicles are used. Or, it
additives are available which will improve the qualitymay be to do with national fuel specifications. Using
of the fuel and the performance of the diesel engine.the right additives will ensure that the fuel is right for
5. Additives ensure the stability and cold flow ofthe market in which it is being sold.
biofuels, and are suitable for all diesel engineDiesel additives can make a big difference to the
applications such as on-road and off-road vehiclesperformance of an engine, especially one that uses
including lorries and farm machinery, home heating,biofuel. Imagine being stuck at sea on a ship with a
marine environments and rail uses, as well as powerpoorly performing fuel, or maybe stuck in the desert
generation.in a 4x4 or caught in a snow storm, miles from
6. Biodiesel can degrade over time. If the fuel is to beanywhere. Now can you see why diesel additives are
stored for a time, then diesel additives can ensureso important for biofuels?
that the degradation is minimised and that the fuel is