Homemade Biodiesel Oil

Ataya P :  This is my experiment on how to make biodiesel oil from used vegetable oild. Let's see

Ingredients
1. Already filtered used vegetable oil.
2. Methanol 
3. Lye or sodium hydroxide
4. Thermometer
5. 2-3 plastic bottles. 


Process
1. Heat up used oil for let water evaporate away.  Then wait until the oil's temperature down to 50-60 Celsius

2. Mixing warm oil with Methanol (Methanal 1 : 4 oil) and add Lye for about 1-2 tea spoons. After that close the bottle cap and shake it well for about 20 minutes. (Warning !!  It will has gas while you shake the bottle. So, you have to open the bottle cap for every 2-3 minutes to release the gas out)

 3. Place the bottle for a night then you can see the layer of  biodiesel oil on top and glycerin in the bottom. 

4. Separate only the biodiesel oil out and wash it with water by add water into biodisel , shake it softly and wait until water and oil separate into 2 layers then get only biodiesel out.(water will clean fat and leftover glycerin out) Repeat the process until the water was not muddy. Finally put the oil under the sun light to make the water evaporate out of the oil then you have pure Biodiesel !!