How to Make Biodiesel (fast and Easy Way)




Introduction: How to Make Biodiesel (fast and Easy Way)

hello, today we will see how to make multi purpose bio diesel. that can be used for cars but for heaters ,stoves or oil lamps too.

but we will not use the usual way. we will not use dangerous lye and methanol , but an easier way with no byproduct like glycerin.

we will use the solvent blending in wvo method .it is a lots easier and faster ,it can be done in micro batch or in larges quantities.

Step 1: WVO : Waste Vegetable Oil

first we will use vegetable oil in our biodiesel. in a blend of 80%.

it can be olive, sunflower ,palm ,grape,algae or any other vegetables.

it can be clear oil but wvo is more interesting.

the oil should be filtered first and all contaminant should be removed.

oil without animal fat inside is better.

in the case of wmo or waste motor oil, i think you should just stay away from it. it is dirty, full of chemicals and metal particles , it is dangerous to burn and can clog engines so we will not use it.

Step 2: Solvent

we will use solvent to thin the oil ,it will improve the biodiesel viscosity and stop it from gelling.

the solvent used will be : gasoline, white gas or turpentine. and will be blended at 20% to 30% in the biodiesel.

white gas (called too naphta, coleman fuel or essence F)is the cleaner burning of all solvant, but sadly is petroleum based.

regular unleaded gasoline is the perfect solvent for cars and the lowest priced but sadly it is petroleum based .

turpentine is the perfect vegetal solvent but has a strong pine smell.

note only one solvent will be blended at 20 to 30% too much solvent will make the biodiesel flammable and dangerous , not suitable for multi purpose use.

optional: you can add 2 to 3% of acetone for better thinning at very low temperature can help when gelling, but too much acetone can damage rubber.

acetone can be petroleum or vegetal based.

we will not use in the biodiesel blend regular diesel or kerosene mostly because of their low thinning power, they are not interesting until they are at least 50% blended in the mix.

Step 3: Final Result.

here are mix of 80% sunflower oil 20% white gas and 2%acetone .it is a very nice biodiesel , I'm mostly using it as an emergency lamps oil fuel in the cold.

the smell is different than regular diesel but it is as strong smelling.

the mix need to settle 24h at minimum before use, sometime impurities can be pushed out by the solvant and another filtering can be needed before use if there is some impurities.


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    Question 3 years ago on Introduction

    Would this work for generators and car engines that run specifically on diesel?would they cause any damage to the engine within or let out more smokes?


    Answer 3 years ago

    it is hard to tell in the long term, it is a lots engine dependant.

    especially if you use only oil.but it will probably smoke more yes.


    3 years ago

    although interesting, you can’t call this biodiesel... not without the transesterificaton process...


    Reply 3 years ago

    this is a kind of biodiesel ,there is 3 type of biodiesel.

    transesterification processed one is just one kind

    heated oil and solvent blend are the two other types of biodiesel a diesel car can use.

    and soon more types will come, like the gen2 biomass without transesterification process.

    transesterification process is just prefered because labs can sell glycerin byproduct at a good price, during a long time the resulting biodiesel was concidered a waste product.


    Reply 3 years ago

    Sorry for insisting, but biodiesel is a mixture of esters and not triglycerides - in your insctructable you show how to change the physical properties of the oil by mixing it with solvents so it will work in a diesel engine.
    This is not a question of point of views, its a fact... See more here:

    Some search at the pubmed site can also lead you to several scientific articles that say the exact same thing as the site. The process could not involve transesterification, but the ester must be there.