Jason & Katie,
Yes, glycerine does dissolve in water and FFAs don't. That's why I was
at a loss to explain why a small amount of FFAs in glycerine should separate
easily while the FFA split from the glycerine cocktail ... with a small
amount of glycerine .... formed an emulsion.
The FFAs seem to be very similar to BD in that they float on water, but
the presence of glycerine -----> emulsions that can be broken w. heat or
acid. My hope is that the first wash will remove the glycerine and
subsequent washes will be easier. FFAs may simply form emulsions in water.
They have a region of charge that is replaced by a methyl group (uncharged)
in BD. This region of charge may allow sufficient interaction w water ---->
emulsions.
I don't know what you ask about using FFA in place of castor oil to
distill ethanol. Do you mean to dehydrate the ethanol?
Tom
----- Original Message -----
From: "Jason & Katie" <[EMAIL PROTECTED]>
To: <biofuel@sustainablelists.org>
Sent: Friday, August 25, 2006 5:47 PM
Subject: Re: [Biofuel] Washing FFAs
> its because of that "difference in miscibility" i bet. ill have to look
> to be sure, but i think with glycerine being an alcohol, and ffa being a
> lipid that the glycerine will dissolve in the water, but ffa's do not. i
> also wonder if the ffa content can be used in place of castor oil to
> distill ethanol...another thing to look into.
>
> On Fri, 2006-08-25 at 14:47 -0400, Thomas Kelly wrote:
>> Hello all,
>> I have been hoping to burn the FFAs split from the glycerine
>> cocktail to help heat my house. My oil fired furnace is currently
>> running on B-100. My plan is to add about 5% FFA.
>> Early attempts have produced coking of the electrodes.
>> I suspect that some glycerine remains w the FFAs.
>> I mix the glycerine component w water and add it to my compost
>> piles. I noticed that any FFA in the mix floats to the top almost
>> immediately. I have tried washing the FFA with water ... as in
>> washing BD. I get an emulsion that is very slow to separate unless I
>> heat it considerably.
>>
>> Question #1: Does anyone burn FFA in their oil fired burners?
>>
>> Question #2: Why does the FFA separate quickly in my glycerine/water
>> mix, but slowly when mixed with just water? I would think it should be
>> the other way around.
>>
>> Tom
>> _______________________________________________
>> Biofuel mailing list
>> Biofuel@sustainablelists.org
>> http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org
>>
>> Biofuel at Journey to Forever:
>> http://journeytoforever.org/biofuel.html
>>
>> Search the combined Biofuel and Biofuels-biz list archives (50,000
>> messages):
>> http://www.mail-archive.com/biofuel@sustainablelists.org/
>>
>
>
> _______________________________________________
> Biofuel mailing list
> Biofuel@sustainablelists.org
> http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org
>
> Biofuel at Journey to Forever:
> http://journeytoforever.org/biofuel.html
>
> Search the combined Biofuel and Biofuels-biz list archives (50,000
> messages):
> http://www.mail-archive.com/biofuel@sustainablelists.org/
>
>
>
_______________________________________________
Biofuel mailing list
Biofuel@sustainablelists.org
http://sustainablelists.org/mailman/listinfo/biofuel_sustainablelists.org
Biofuel at Journey to Forever:
http://journeytoforever.org/biofuel.html
Search the combined Biofuel and Biofuels-biz list archives (50,000 messages):
http://www.mail-archive.com/biofuel@sustainablelists.org/
