My attempts at acquiring large volumes of used veggie oil from single
sources has not as yet reached fruition. All the promises and best
intentions of some of these large companies seem to fall away when it comes
to making decisions to CHANGE even if its for the better.
The results of the work I have done, on a small scale, show that it is most
important to have starting material that is consistent in composition. I
have found that variability of starting material to be the biggest problem,
for me, in a reduced return.
Here, in South Africa, the used oil is an industry in itself with many
sources already catered for the disposal. One can buy used oil in bulk but
without any guarantee on composition, as expected. Most of it is sold for
reuse for making soap, they say, although its use in animal feed and reuse
as cooking oil by the lower income groups is probable.
I have also had problems with reduced return during the wash. My best
results have been by lowing the ph with vinegar well in excess of that
indicated in the literature (Foolproof) and being careful not to agitate to
much.
So, until I find a regular and consistent source of used oil I am reduced to
producing for my own consumption, for the time being.
Well... its a start!!
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Biofuel at Journey to Forever:
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