Biodiesel is one way of using veg-oil for diesel fuel. It's not for Dummies
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The other way is to use veg-oil directly.
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A Literature Review [... ... ... ]
It's all fine and dandy if you've never wondered about the ETHICS of using EDIBLE oils which use rangeland or crop land that could be used for FOOD and have an abundant supply of vegetable oil nearby available economically, but what about the rest of the world suffering from high energy costs but which has an abundant and free source of waste from the proliferation of junk food outlets?
Systems are available to make it possible for ALL diesel engines to use vegetable oil directly (elsbett). Why not using WASTE vegetable oil, when we already know the main problems, acidity and water presence? (I already emailed elsbett about it in case you wanted to know)
How difficult could it be to TREAT these oils in such a way so that they would behave mechanically, thermally AND chemically like pure vegetable oil instead of going directly to the Biodiesel route which implies a complex, messy and quite involved process negating much of its true usefulness?
Let this be a challenge for a good chemist in this house
Anyone?