Biodiesel is made by chemically changing organic oil or animal fats by using a catalyst
and an alcohol, usually Methanol. The chemical reaction that occurs through this
process is called Transesterification which breaks down the glycerin part of the
oil molecules and replaces them with alcohol molecules. The glycerin being heavier
then falls to the bottom and is drained off leaving you guest it Biodiesel.
Biodiesel is then typically washed to remove any impurities and dried to remove
any residual water from the washing process. Note: Biodiesel used in older model
vehicles that still employ rubber fuel lines will need to be upgraded as the Biodiesel
will eventually dissolve them due to the strong solvent properties of biodiesel.
You will also need to change the fuel filter a coupe of times as Biodiesel will
remove any old deposits remaining from old fossil fuels.
Precautions:
BE SAFE WHEN MAKING BIODIESEL.
When making Biodiesel, it's important to be safe. Why you ask? You are dealing with
several toxic chemicals. Methanol is extremely flammable as well as poisonous and
Lye is highly corrosive and an inhalation hazard. The transferring and mixing of
flammable liquids and caustics can raise the risk in handling and there is a potential
to seriously hurt, injure, and even kill yourself and others. This site and its
contributors will not be held responsible for any injury, death, or destruction
of property that occurs while attempting to make Biodiesel. Always use the proper
safety equipment.
Biodiesel should always be made in a well ventilated area, away from children and
pets with the proper safety equipment utilized.
Before making batches of Biodiesel, check with your local municipality and fire
marshall to ensure that any chemicals, alcohol, or other substances you will use
are being stored and used within the proper laws and ordinances for your area. Some
areas refer back to state and federal fire codes. It's always a good idea to check
before you get started.
Using Biodiesel in a diesel engine may void some manufacturer's warranties. Although
the steps outlined here are sound and have been tested in several thousands of vehicles
all over the world, there's no guarantee your engine manufacturer will honor your
warranty. Biodiesel is considered a fuel, so if you plan to use it in a vehicle
for on-road use, it may be subject to taxes. Check with your state and federal taxing
agencies if in question.
Biodiesel itself, when properly made, is quite safe. It's less toxic than table
salt and degrades faster than sugar. It has a higher flash point than regular diesel
and if spilled is not considered toxic.