Mods for running Bio

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  #31  
Old 01-13-2006, 03:56 PM
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OK, I casn see where I got sidetracked. I'm used to evacuating to 2milibar, and that would probablly suck fluid. You're dropping atmospheric pressure, but not enough to move fluid.

I remember now where you recover the methanol from - the glycerol. In a properly transestified batch of biodiesel, there is no methanol left, it combined with the FFA to form glycerol. by heating or evacuating the methanol, you can recover som of the methanol for reuse.
 
  #32  
Old 01-15-2006, 11:42 AM
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Thumbs up vac stuff

cool, look forward to seeing them.
chad
 
  #33  
Old 05-28-2008, 09:45 PM
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Originally Posted by fabmandelux
No,the flow is from the still through the condenser then through a "wet tank" then the vac pump. Nothing goes through the vacuum pump. The wet tank is simply a 5 gal glass jug, it has 2 lines into the top, 1 line is hooked to the condenser,and goes to within an inch of the bottom. The other line is within an inch from the top, and is connected to the vacuum source. I am not at the shop this week as I have 3 speeches to give, Next week I will try to post pic's of the still. FABMANDELUX
Just jumped into this old posting. Fabman, I am interested in the vacuum recovery of methanol and vacuum drying of the biodiesel. Do you have any updated info I could get? Am just getting started and am enjoying your posts and experience.
 
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