hi geoff,
before I read your post I was a little confused about alternative fuels
now i am totally confused
no offence but im afraid, your terminology is away above my head
like the proffesor says to his students "talk in laymens terms"
words like "transesterification" really blow my mental fuses
I would love to understand your explanations
but I'm even more confused after ive read them
dont get me wrong
the fault is not with you
but more with my inability to understand
"short sentances geoff"
Hi Nick.
Sorry you feel confused but I think the problem is that you are looking for complication and confusion where non exists and thereby miss the simplicity of it all.
It's the terms "Bio" & Vegetable that I believe cause the confusion, so lets remove them.
Biofuel = Fuel. Usual a liquid that's used to power an engine
+ Bio. Made from plants
Therefore Biofuel = Liquid used to power an engine made from plants.
Likewise Biodiesel = Diesel. A specific type of fuel used to power diesel engines. When described like this everyone seems to understand what it is, and that it is different to Petrol, Av gas or other fuels.
Add Bio = specific type of fuel to power diesel engines made from plants.
For Vegetable oil (V.O.) delete vegetable and add Crude.
Crude oil. The raw product that Diesel and other fuels can be made from.
Therefore Vegtable oil. The raw product Biodiesel can be made from.
Diesel is made from Crude oil in a Refinery by a process called Defraction.
Biodiesel is made from vegetable oil in a garden shed, if required, by a process called Transesterification.
I imagine that when talking about (mineral) Diesel you have no problem understanding what I mean, even though you don't understand the technical process, as you can see moving from mineral to Bio changes nothing exept some of the terms used.
It is not nessessery to understand the process just accept that the name given to it is "Transesterification", in the same way we accept that to change a soggy lump of dough into a loaf of bread is called "Baking".
The real point of the post was to point out that whilst people do not have a problem understanding what Diesel is and would not refer to Petrol, Kerosene or even Crude oil as diesel.
When Bio is put in front of it people somehow jump to the conclusion that it can refer to other things as well e.g. Vegetable oils, Diesel/veg. oil mixes or enything else which is not straight mineral Diesel. It is this misuse of the term "Biodiesel" that can lead to a great deal of confusion.
The rest of the post is additional information to help create a better understanding of this subject.
I hope this clarifies the situation, but if there are any particular bits You or anyone else requires further explanation of I will do my best.