Manufacturing Process Of Biodiesel

Making biodiesel at home has become extremely popular not only for people who are concerned about the environmental pollution but also for those with a fetish for DIY projects. It is amazingly easy to make biodiesel at home and believe it or not, you do not need to be a chemist or an automobile engineer in order to do this. You can always buy a biodiesel processor from the market. However, there is nothing like making biodiesel at home and surprise your colleagues by arriving in a car run by 100% pure biodiesel made at your backyard.

that is present in a large quantity in vegetable oil, from the oil itself by using a mixture of an alcoholic substance and a catalyst. This makes biodiesel less viscous than the vegetable oil and much better for your engine as well as the environment. You can use fresh or waste vegetable oil directly to run your car.

biodiesel manufacturing process

However, in such case you will need an additional fuel tank and a fuel line because vegetable oil is not combustible under normal condition. First you have to start your engine with biodiesel or regular diesel then switch to the vegetable oil once the thermal indicator lets you know that it has reached a combustible stage.

In order to make biodiesel you will need vegetable oil, an alcohol (methanol or ethanol) and sodium hydroxide (lye) or potassium hydroxide. If you are using waste vegetable oil, first filter it carefully. Also you need to remove any water particle that it may contain. In order to do that, you need to heat the oil for some time at around 50 °C and let it cool. The water, if there is any, will settle at the bottom. Pour the pure oil from the top and discard the rest. After this, warm the oil again and prepare a mixture of sodium hydroxide and alcohol.

You will need 3.5 grams of sodium hydroxide and 0.2 liter of methanol or ethanol for every 1 liter of fresh vegetable oil. Mix this solution until they dissolve completely and add it to the warm oil. Again, mix thoroughly. After this let them cool down and settle for a few hours. The heavier glycerin will settle at the bottom. Therefore, you can easily remove the biodiesel from the top. Sieve the biodiesel carefully before using.