Chris,
I'm guessing you did not titrate the used oil sample after adding
Mangesol. If you could do that it would be intresting to see the results.
And that should tell you definately if the FFA's have been neutralized.
Logan Vilas
----- Original Message -----
From: "Chris Bennett" <[EMAIL PROTECTED]>
To: <biofuel@sustainablelists.org>
Sent: Wednesday, May 24, 2006 4:14 AM
Subject: [Biofuel] Manesol pretreatment and washing
> Been having a play with a bag of Magnesol this week with impressive
> resuts. I made a sample batch of diesel, went over the top with the lye
> by about 2 grams per litre. I added the magnesol powder to the finished,
> seperated diesel and mixed for about 5 minuites. I removed the magnesol
> by filtering thru coffee filters several times (it was quite difficult
> to get it all out without a fine enough filter). The result is crystal
> clear biodiesel. I mean CRYSTAL clear, much better than I have EVER been
> able to get with water washing. Adding water to the diesel yields quick
> seperation, clarity is still 100% and the wash water is perfectly clear.
> 10grams per litre of magnesol has removed EVERY trace of soap and
> contaminants. Lets just say I will no longer be water washing.
> The next experiment was based on the claims that magnesol neutralises
> FFA. I got 2 samples of WVO and filtered them. One 250ml sample was
> treated with about 1.5g of magnesol and mixed for abut 10 minuites. The
> magnesol was filtered out of the sample. BOTH samples were processed as
> new oil with 3.5g lye per litre and 250ml meth per litre. After
> seperation and cooling the pretreated sample is clear, and the byproduct
> is a redish colour. The untreated sample shows an uncomplete reaction
> and a very dark nearly black byproduct. I have yet to try water washing
> these samples. It appears that the magnesol pretreatment has removed the
> ffa content and then the oil has been able to be processed as new oil.
> It should be quite easy to integrate into a process by adding an
> arbitrary amount of magnesol to the feedstock and mixing, PH
> measurements will tell you if more needs to be added.
>
> The waste magnesol, according to manufactutrers literature, can be
> composted, put into landfill, and even used as animal feed. The magnesol
> washing could be integrated into a semi continuous process easily, which
> is why I am looking at it. Another comment is that when using it for
> washing biodiesel it also seems to remove colour and odour from the
> biodesel. The magnesol washed samples are always paler than the water
> washed samples.
>
> If the used magnesol is put into water it instantly goes cramy white, as
> it gives up the soaps etc that it has absorbed.
>
> Kieth, if you are interested I have some photos of the different samples
> tested and washed. Maybe you could incorporate something aout it into
> the JTF page? If anyone wants these photos emailed let me know! I was
> impressed.
>
> Chris Bennett
>
>
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