Biodiesel is to lower the viscosity of the oil,
That isn't the only purpose in making biodiesel, lower viscosity is
only one aim.
what would happen if we used
just free fatty acids? Why won't that work?
It will work, but for how long?
From previous:
If you think viscosity is all that matters, you should also have a
look at this:
http://journeytoforever.org/biodiesel_SVO-Anso.html
Ricardo report on SVO - Niels Ans¿
... there's rather more to it than just viscosity, especially with DI
diesels - see the ACREVO study on this, for instance:
http://www.nf-2000.org/secure/Fair/F484.htm
Advanced Combustion Research for Energy from Vegetable Oils (ACREVO)
And:
The Fuel Injection Equipment (FIE) Manufacturers (Delphi, Stanadyne,
Denso, Bosch) issued a statement on biodiesel. They strongly support
it, but they have their concerns too, and they're very involved in
standards development... These are their concerns:
* Free methanol
* Dissolved and free water
* Free glycerin
* Mono and di glycerides
* Free fatty acids
* Total solid impurity levels
* Alkaline metal compounds in solution
* Oxidation and thermal stability
... Free fatty acid
Effect: Provides an electrolyte and hastens the corrosion of zinc,
Salts of organic acids, Organic compounds formed
Failure Mode: Corrosion of fuel injection equipment, Filter
plugging, Sediments on parts
http://journeytoforever.org/biodiesel_FIEM.html
FIEM report
And so on.
Best wishes
Keith
Pieter Koole wrote:
>Some time ago I wrote about my mistake, to not boil off the water out of
>wvo, so I finished up with a lump of soap, glop or whatever we can call it.
>Alltogether it was 1000 liters. Now I decided to try to break the soap with
>phosphoric acit (75%) and let it sit for several weeks. The soap was
cracked
>and I was lucky to siphon from the top just over 700 liters of BD. I have
>been driving on it, without any problems.
>Maybe someone out there can do something with this information.
>I have been thinking that I might be driving on FFA's at the moment in
stead
>of BD, but it works.
Pedro
_______________________________________________
Biofuel mailing list
[EMAIL PROTECTED]
http://wwia.org/mailman/listinfo/biofuel
Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html
Biofuel archives at Infoarchive.net (searchable):
http://infoarchive.net/sgroup/biofuel/
