| Bio-Diesel Introduction
There are several ways of making Bio-Diesel fuel but one of the simplest and user-friendly ways is by TRANSESTERIFICATION. This means changing one type of Ester into another. By this process the Glycerine that is in vegetable oil is detached or separated form the vegetable oil to leave what is called Bio-Diesel fuel. The glycerine is what makes vegetable oil thick and sticky and therefore what we are doing is reducing this viscosity of the oil.
In order to make this process happen, we use Methanol (Alcohol) and Sodium Hydroxide. When these two chemicals are mixed together in the correct ratio and added to the vegetable oil, the separation of the Glycerine occurs. What is left is crude Bio-Diesel fuel.
The qualities of the above two chemicals are variable to the oil used. Clean oil may require less chemicals, dirty used oil may require more. The amounts of the chemicals are determined by testing the oil that is to be converted. This testing is called TITRATION and is critical to successful Bio-Diesel production.
Once this testing has been done and the amounts of Methanol and Sodium Hydroxide have been determined, the three components are mixed in the Bio Diesel generator. To assist this mixing the generator has a heating element and a stirring mechanism.
If the measurements of the chemicals are correct, the process takes place 45-60 minutes, after which the mixture is pumped into a holding tank to separate over night. Again, if the measurements were correct, the initial separation will occur in 15 minutes and continue overnight.
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