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Written by Rickdatech
The Basic Ingredients
This is where you find out what ingredients are needed, and how to get them.
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A key ingredient in the homebrew biodiesel recipe is catalyst. Sodium Hydroxide and Potassium Hydroxide are the most commonly used. The glycerin and soap that settles out from a reaction using Sodium Hydroxide will be solid, while the soap and glycerin that settles out from a reaction using Potassium Hydroxide will be liquid.
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Methanol or wood grain alcohol is the simplest form of alcohol. It is both poisonous and flammable. It is used in racing, making it available at both chemical supply houses and fuel distributors. It burns without a visible flame in bright sunlight and it is the most expensive ingredient for most homebrewers.
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There is a huge variation in fats and oils used to make biodiesel. This article goes into the properties of the different oils to help you know which are best for making biodiesel. For instance, how much saturated fat an oil contains determines it's gel point.
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Titrating WVO is essential to understanding the quality of your oil. It is a simple test and is used to build a biodiesel recipe. This article contains instructions and videos on how to tirate.
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Collecting Oil
Cheap and free oil is what makes homebrew economical. Homebrewers have a big advantage over commercial producers because they can pick up oil on their way to and from work. Commercial producers either have to buy their oil and pay to have it delivered or have to hire a driver to collect oil directly from restaurants.
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So you want to find free oil? It's not all free. Take some time to read up on how to secure and keep that ultimate oil supply. If you want to keep that oil supply, be sure you clean up the spills to prevent unhealthy conditions like the one in the picture.
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Murphy's Machines goes through the steps of how to collect oil, from finding potential supplies of oil, to testing potential supplies of oil, to getting approval to take the oil, and finally to physical collection and transportation of the oil.
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There are four basic ways to get oil from the resturant to the shop. They are the "Pail Exchange", "The Drum Swap", "Pump it up", and "Vacuum it up".
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If your going to pump it up, you will need an inexpensive, robust pump that's right for the job. This article looks at what's available for the job.
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Dana Linscott shares his vision of the super sucker. Using his advise, you can build a supersucker on the cheap using a recycled well water pressure tank and an old refrigerator compressor.
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How to make your own biodiesel at home
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