Absolutely you can add your glycerin back to your oil. This is called
pre-reacting the oil. It will do you two things, it will remove "most" (the
methanol has more of an affinity for biodiesel than glycerin) of the methanol
form the glycerin and it will lower the titration number of the oil to be
reacted. I do this with every batch. I also add this glycerin (with the methanol
removed) back to the biodesel after it is finished reacting and before the first
wash. Ad the glycerin back to the biodiesel, then add water at a rate of 10% of
your total reaction. Then run your pump for about 20 minites and let it settle
again. The glycerin/water will remove a huge amount of soap from the bio. Then
you can water wash with ease! Your first wash can be done with a hose end
sprayer with no chance of emulsification. It will cut your wash time in1/2. Try
it! You'll be amazed at how well it works.
Carl Shortt III
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-THINK-
"Art, like morality, consists of drawing the line somewhere"-- G.K. Chesterson
________________________________
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From: John E. Grabe <johngrabe@...>
To: Biodiesel@yahoogroups.com
Sent: Wednesday, July 8, 2009 4:35:17 PM
Subject: [Biodiesel] Recovering methoxide from glyserin
I have noticed that after sitting for extended periods the gly by product
accumulates a layer of bio on top. I don't think that the bio existed when the
gly was first seperated. I rather think that the meth in the gly continued to
process the gly and formed the bio. Is this true?
I want to recover ALL the meth in the gly so I can make soap from it...safely.
I have heard it suggested to add new WVO to gly to improve the WVO in some way.
Is it viable to add the gly from the previous batch to the warmed oil and get
the meth reacted completely?
Thank you,
John
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