Biodiesel made from used Kitchen Grease or Waste Vegetable Oil.

This is how to make your own biodiesel fuel from used cooking oil. The waste vegetable oil (WVO), used fryer grease, animal fats, lard is often free for the taking. All you need is a few common chemicals and some equipment you can easily buy or make yourself. The result is a cheap, clean-burning, non-toxic, renewable, high-quality diesel motor fuel you can use in your car without modifications.

CAUTION:
Wear proper protective gloves, apron, and eye protection and do not inhale any vapors. Methanol can cause blindness and death, and you don't even have to drink it, it's absorbed through the skin. Sodium hydroxide can cause severe burns and death. Together these two chemicals form sodium methoxide. This is an extremely caustic chemical. These are dangerous chemicals treat them as such!

Always have a water hose running when working with them. The workspace must be thoroughly ventilated. No children allowed.

Making biodiesel
Ingredients and Mixture:
Waste vegetable oil (WVO) used cooking oil, fryer grease, animal fats, lard Methanol (CH3OH) 99%+ pure Potasium hydroxide (NaOH -- caustic soda, lye) it must be dry

Titration:
Isopropyl alcohol (rubbing alcohol) 99%+ pure Distilled water Phenolphthalein solution (not more than a year old, kept protected from strong light) "Phenol" or "Phenol Red" from swimming pool or hot tub supply stores may not be the same as phenolphthalein; it can be used but the directions for use may be different.

Procedure

1. Filter WVO to remove any food scraps or solid particles.
2. Perform titration to determine how much catalyst is needed.
3. Prepare potasium methoxide.
4. Heat WVO, mix in the Potasium methoxide while stirring.
5. Allow to settle, remove the glycerine.
6. Wash and dry.
7. Check quality. and use

This procedure is called transesterification. This reaction causes the ester chains to separate from the glycerine. These ester chains are what becomes the soap. They're also called lipids. Their unique characteristic of being attracted to polar molecules such as water on one end and to non-polar molecules like oil on the other end is what makes them effective as soap.
In transesterification, lye and methanol are mixed to create sodium methoxide (Na+ CH3O-). When mixed in with the WVO this strong polar-bonded chemical breaks the transfatty acid into glycerine and also ester chains (biodiesel), along with some soap if you're not careful. The esters become methyl esters. They would be ethyl esters if reacted with booze (ethanol) instead of methanol.