How To: Filter vegetable oil to make biodiesel

Filter vegetable oil to make biodiesel

How to Filter vegetable oil to make biodiesel

In this video, Tom Carpenter explains how to filter vegetable oil into bio-diesel at home. After collecting a large amount of waste vegetable oil, place 30 gallons of it into a modified (by removing the top heating element) water heater. Use a pump and hose to circulate the liquid through the water heater. Heat the oil to 120-130 degrees Fahrenheit. In a separate container, mix methanol and sodium/potassium hydroxide (methoxide). After disconnecting the heating element from the water heater, use a tube to add the methoxide into the oil, allowing the pump to circulate it for 3 hours. Transfer the mixture into a separate tank, allowing it to sit for 24 hours. After 24 hours, the mixture will have separated into two distinct layers: the top layer is raw bio-diesel, and the bottom layer is glycerin. Drain the glycerin (either saving it for other purposes or to dispose of). After draining the glycerin, "wash" the bio-diesel by adding water to it several times, allowing it to settle in between washes. After washing it, run the bio-diesel through a filter. The bio-diesel is now fully processed and ready to be used.

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