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Old 04-16-2007, 05:00 PM
Tom D Tom D is offline
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Tank size

If I make a 50 gallon batch of BD, how much glycerol can I expect to separate out of it? I am trying to figure out what size tanks I will need if I do plan to vacuum off the methanol after separation. Thanks.
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Old 04-16-2007, 05:16 PM
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about 10 gallons
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Old 04-16-2007, 10:24 PM
Murphy2000 Murphy2000 is offline
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Whatever gallons you put in as methanol will come back out as glycerin +10% or so.

I was doing 45 gallon batches in a 63 gallon reactor and I usually get 12 to 15 gallons of glycerin out.
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Old 04-17-2007, 08:12 PM
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Thanks for the replies. When you are draining the glycerin out of the separation tank,can you see the difference enough so you can stop draining when you get to BD or how do you guys know when to stop draining?
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Old 04-17-2007, 08:20 PM
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You can very easily see the difference! The glycerol will be very dark, almost black. The biodiesel should be a pale yellow, or golden color.
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Old 04-17-2007, 08:20 PM
 
 
 
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