cloudy but no water.

Collecting, filtering and dewatering of WVO SVO vegetable oil. For Biodiesel producers too.

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cloudy but no water.

Postby tubular031 » Wed Feb 25, 2009 7:34 pm

how can this be? I have some vo in my still and I drained 4 gal off the bottom. then took this sample
Image

I hot pan tested it 4 times thinking I did something wrong... no bubbles, no crackles just a little smoke as it got hotter.

I used my IR gun and the oil was 350 to 400
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Postby John Galt » Wed Feb 25, 2009 7:43 pm

The cloudiness is likely from hydrogenated oil. What happens when the sample is warmed to 120°F ?
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Postby tubular031 » Wed Feb 25, 2009 7:47 pm

I dont have an answer other then it looks clear in the pan when I pour a bunch in :)

Ill get another sample and give it a water bath on the stove and see what happens. if it clears up with heat, then its hydrogenated oil corect?
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Postby John Galt » Wed Feb 25, 2009 7:58 pm

Ill get another sample and give it a water bath on the stove and see what happens.

or the microwave
if it clears up with heat, then its hydrogenated oil corect?

most likely
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Postby 240Volvo » Wed Feb 25, 2009 8:02 pm

Cool it down to 50F and see if it separates. If it does, it is HO. Sure looks like it.
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Postby tubular031 » Wed Feb 25, 2009 8:13 pm

Good call john! heat did the trick. Thanks again for your input!

Image
01 F350 CCLB SRW

Veggie conversion done!
http://www.burnveg.com/forum/viewtopic.php?t=623
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Postby tubular031 » Wed Feb 25, 2009 8:15 pm

I am going to put it in the fridge too, that will also be an interesting test...

looking at this pic, makes me remember that I need more crown :)
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Postby John Galt » Wed Feb 25, 2009 8:30 pm

Glad to help.
I've found that the fridge test usually drops the hydrogenated component to the bottom.
You're right, Crown is an excellent operator lubricant for producing the best VO fuel.
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Postby David » Thu Feb 26, 2009 7:53 am

It works the other way too!

I remember a friend when he first got into SVO couldn't figure why after cold filtering a test sample of oil a dozen times, still had " Fats" in it.

A HPT opened his eyes to the fact that there can be more than one cause of cloudy oil.

He is still pedantic about fats but concludes that since his oil is clear ( Bit hazy for my liking) it MUST be dry and therefore there is no need to dry it also based on the fact he has been running it 2 years without trouble.

Each to their own beliefs I guess.
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