dewater your wvo with glycerol!!! - Ford Truck Enthusiasts Forums



dewater your wvo with glycerol!!!

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Old 07-14-2008, 12:53 PM
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dewater your wvo with glycerol!!!

I used the byproduct "glycerol" to dewater and drop the FFA level in some crappy oil that I picked up, it worked great. I used a 10% by volume mixture and processed it for 30 min let the glycerol settle for about 2 hours drained it and retested the wvo. there was no water and the titrate had come down 2 MLs. I then ran the process as usual and got about a 95% yeild with no soap . I figured you guys could use this info...
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Old 07-14-2008, 01:08 PM
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Very Interesting
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Old 07-14-2008, 05:27 PM
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Originally Posted by MAKO314 View Post
I used the byproduct "glycerol" to dewater and drop the FFA level in some crappy oil that I picked up, it worked great. I used a 10% by volume mixture and processed it for 30 min let the glycerol settle for about 2 hours drained it and retested the wvo. there was no water and the titrate had come down 2 MLs. I then ran the process as usual and got about a 95% yeild with no soap . I figured you guys could use this info...
I heard something of this from another group. I also heard of some-one using the glyc. to break an emulsion. I have not tried either, but still interesting.
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Old 07-15-2008, 12:08 AM
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Originally Posted by MAKO314 View Post
I used the byproduct "glycerol" to dewater and drop the FFA level in some crappy oil that I picked up, it worked great. I used a 10% by volume mixture and processed it for 30 min let the glycerol settle for about 2 hours drained it and retested the wvo. there was no water and the titrate had come down 2 MLs. I then ran the process as usual and got about a 95% yeild with no soap . I figured you guys could use this info...
Interesting. What was "crappy" about the oil besides the water? Dirty? Rancid? Thick?
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Old 07-15-2008, 11:52 AM
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FFAs are a result of repeated heating to high temps possibly overheating.
The quality of oil you get from any source depends on how long it is used.
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Old 07-15-2008, 06:09 PM
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Interesting. What was "crappy" about the oil besides the water? Dirty? Rancid? Thick?

it titrated at a 4.5 and was full of disolved water. this was an experimental process for me going on a whim and it actualy worked out great. I've even started keeping 10 or 15 gallons of fresh glycerol on hand just incase I have to do it again. it adds some time to the reaction but I got a much better quality and quantity of BD.
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Old 07-15-2008, 09:51 PM
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You may want to check in on Info-pop with your results. I have read there of people having good results with this method for quite some time
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Old 07-15-2008, 11:00 PM
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This is good info to pass on to my buddy who's set up and making bio now.

Anybody know what (if anything) can be done to rancid thick oil to make it useable? He's got nearly a whole drum of some really nasty smelling goopy stuff he's trying to figure out what to do with...
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Old 07-15-2008, 11:21 PM
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I still can't figure out what to do with it. It won't react for anything, it gums everything up, and I'm way to scared to put it in my SVO running trucks, plus it won't make biodiesel.
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Old 07-17-2008, 12:16 AM
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Just curious had you reclaimed the Methanol out of it before you did this or not? If not then I can see the methanol attaching to the water and pulling it out (just like the heet additive does in gas tanks)
I know when I run my glycerol back and reclaim the methanol I get about 5 gallons worth out of 30 gallons of glycerol so about 15%.
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Old 07-17-2008, 07:13 AM
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Just curious had you reclaimed the Methanol out of it before you did this or not? If not then I can see the methanol attaching to the water and pulling it out (just like the heet additive does in gas tanks)
I know when I run my glycerol back and reclaim the methanol I get about 5 gallons worth out of 30 gallons of glycerol so about 15%.
no the methanol had not been removed, I put the glycerol in at a temp of about 100* and added about 5 gallons into 40 gallons of oil.
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