As automotive fuel expenses continue to mount, consumers become curious about cheaper alternatives to fossil fuels. One of the more popular choices is homemade biodiesel. Biodiesel made out of vegetable oils can be utilized in any diesel-fueled auto. Just about any oil that is created from plant material is able to become biodiesel, including hydrogenated oil. Hydrogenated-oil-derived biodiesel is much less likely to oxidize or break down than other types are. However, it more difficult to liquefy and has an unfortunate tendency to clog filters. It coagulates in cold winter weather so is most appropriately a fuel for the summer. The procedure for cooking biodiesel up out of hydrogenated oil is the same as for any other kind of plant-derived oil.
One liter of vegetable oil
Large cooking pot
#2 plastic container at least one-half liter in volume
200 ml methanol
4.9 grams if 99% pure, 5.8 grams if 85% pure, of potassium hydroxide lye
Two 2-liter plastic bottles
Pour the methanol into the ½ L container using one of the funnels. Methanol quickly becomes contaminated when exposed to the air, so be fast. Place the lid back on the container right away, making sure it is completely sealed.
Pour the lye out into the container with the other funnel. Lye also swiftly becomes impure when in contact with air. Pour quickly. Reseal the ½ L container right away Mix the methanol and lye together by agitating the container. The chemical reaction will cause the mixture to heat up. Stop mixing when the mixture becomes transparent. This combination of chemicals is named methoxide.
Bring the oil up to 130 degrees in the cooking pot. Keep stirring the oil so that it doesn’t burn. Pour the oil into the blender.
Add the methoxide to the blender. Put the lid tightly in place. Mix for half an hour at a low speed.
Pour the mixture into one of the 2 liter-bottles. Screw the lid back on. Allow the mixture to sit for at least 24 hours. While the mixture sits, glycerine will settle out of it and build up on the bottom of the bottle. The yellowish liquid above the glycerin is the biodiesel. Pour it into the other bottle.
You can find methanol at any paint store, where it is sold as a paint solvent. Methanol may also be purchased at auto stores, sold as gas-line de-icer. Your biodiesel may need to be filtered for best results.