Hello Keith,
> That's from here, "Deacidifying WVO":
> http://journeytoforever.org/biodiesel_make2.html#deacid
> That might be worth a look, since you're after reducing FFA levels.
I'm interested in making the Glyc. cocktail as compostable as possible.
If you invert the process to "Treating Glycerine Cocktail w. FFAs in WVO",
it probably gives a better picture of my thinking. I get good WVO most of
the time. I was interested in neutralizing the glycerine mix.
I am also interested in minimizing the amount of soap that settles into the
mix.
If the glyc. is neutralizing FFAs, the FFAs are also neutralizing the
glyc.
If the treatment removed water from the WVO and also lowers FFAs, this
should reduce soap production ------> less in the glyc. While it is a
benefit to lower the FFAs in terms of caustic needed to process the WVO,
my interest in lowering the FFA in the WVO was as much a matter of
decreasing the soap that would settle into the glycerine. If water was also
removed by treating WVO with glyc. cocktail, this would decrease soap
content further.
It is my opinion that lower pH and less soap make unsplit glyc. more
compostable. I now have 20+ liters of "treated" glycerine. I have enough
phosphoric acid to split some glyc cocktail, and I have plenty of untreated
glyc.When the weather warms up a bit I'll build a few compost piles and see
if there's any noticable difference in decomposition.
Winter will not let go. I long to be diggin' in the dirt.
Tom
----- Original Message -----
From: "Keith Addison" <[EMAIL PROTECTED]>
To: <biofuel@sustainablelists.org>
Sent: Sunday, March 30, 2008 11:28 AM
Subject: Re: [Biofuel] Treating WVO w. Glycerine Cocktail
> Hi Tom
>
> <snip>
>
>> You can tell me "enough already" and I'll stop, but the gel layer we
>>observe between the treated WVO and the glycerine interests me. Is it fair
>>to say that some of the soap in the glycerine interacts w. some of the
>>mono-
>>and di- glycerides in the WVO to form the layer. It has hydophobic
>>properties that "expel" water, glycerine and other charged/polar
>>molecules.
>> How is this gel layer to be disposed of?
>> Any danger/harm associated with combining it with saw dust and wood
>>chips -----> burning in a wood stove?
>
> It might not burn very well, nor completely, it might leave quite a
> lot of sludge. But burning it at normal woodstove temperatures should
> be safe enough.
>
> Maybe you can turn it into Dubbin, which is useful stuff.
>
>>The soapstock can be used for producing soap, or turned into calcium
>>soap, which is something like Dubbin and has an extremely low water
>>solubility. Useful stuff. "Thus an equimolar amount of calcium
>>chloride may be directly added to the soapstock and prompt
>>separation of the calcium soap by precipitation from a relatively
>>pure saline (NaCl) solution will ensue. Calcium soaps are useful
>>industrial ingredients, for instance as demoulding agents." --
>>Chemical Reactions of Oil, Fat and Fat Based Products --
>>Neutralization (chemical processing)
> http://alfa.ist.utl.pt/~fidel/creac/sec34b.html
>
> Um, that's if you used NaOH, I don't know what will happen if it was KOH.
>
> That's from here, "Deacidifying WVO":
> http://journeytoforever.org/biodiesel_make2.html#deacid
>
> That might be worth a look, since you're after reducing FFA levels.
>
> HTH
>
> Best
>
> Keith
>
> <snip>
>
> _______________________________________________
> Biofuel mailing list
> Biofuel@sustainablelists.org
> http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel
>
> Biofuel at Journey to Forever:
> http://journeytoforever.org/biofuel.html
>
> Search the combined Biofuel and Biofuels-biz list archives (70,000
> messages):
> http://www.mail-archive.com/biofuel@sustainablelists.org/
>
_______________________________________________
Biofuel mailing list
Biofuel@sustainablelists.org
http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel
Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html
Search the combined Biofuel and Biofuels-biz list archives (70,000 messages):
http://www.mail-archive.com/biofuel@sustainablelists.org/
