the glyc is something that was suggested to me several times. how do
people feel about that in general?
Ken Provost wrote:
on 11/30/04 4:54 PM, Legal Eagle at [EMAIL PROTECTED] wrote:
Today, while pondering my reactor/wash tank set up, I wondered about whether
or not there would be any benefit to run the settled but yet unwashed BD
through a fuel filter once the glycerine has been drained. Any thoughts
accompanied by explanation?
The problem I see is that anything which might precipitate out of
solution (and thus be caught by a filter) would always precipitate
BETTER after a water wash. Filtering before water wash probly wouldn't
catch much of anything.
OTOH, if you add water while the glycerine layer is still in there
(as I always do), you DO precipitate out any gums that were still in
the oil, and those might be caught in a filter. Adding water, and
mixing very gently, while the glycerine is still present is a very
effective way to get a lot of crap (soap, glycerides, alkali, excess
alcohol, gums) into the glycerine layer and out of the picture before
risking emulsification in the water wash. (The glycerine suppresses
emulsion). The few times I've skipped that step (one just recently),
the soap level in the water wash was much higher than usual...... -K
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