From: Bjorn Brandstedt (super_deuce@hotmail.com)
Date: Tue Mar 18 2003 - 04:11:23 PST
One thing about used cooking oil is the water content, it must all be
removed in addition to the filtering. Apparently, the water interferes with
the catalyst.
The point with my previous post was the high cost of methanol. At
$20.00/gal, that would put a damper on any homebrew process...
Can we make our own methanol?
Another question that keeps popping up is: What EXACTLY clogs the filter(s)
when biodiesel is first used? What if the fuel tank is chemically cleaned
prior to filling up with biodiesel? Rinsing with methanol?
These don't seem like very big problems, just questions based on
inexperience.
Anyway, the way I see it, it's time to start collecting used cooking oil
while the above problems are being solved.
Cheers,
Bjorn
>From: Fred Martin <mung@in-touch.net>
>To: <mil-veh@mil-veh.org> (Military Vehicles Mailing List)
>Subject: Re: [MV] bio diesel and other fuel options
>Date: Tue, 18 Mar 2003 06:06:47 +0000
>
>How are you guys filtering the cooking oil? I read about a fellow
>(somewhere) that made up a pipe or tube assembly that had several rolls of
>toilet paper inside (fit the I.D. of assy.) Had a small valve installed at
>the bottom...poured his used engine oil in top and when it filtered through
>to the bottom...opened valve and the oil coming out looked like it came out
>of a new can. (his description) Probably have a snug fit tube in center to
>keep it from running down center hole. Anyone else know anything about this
>method of filtering oil? Could or would you use it in the crankcase again?
>Fred Martin
>
>J Travis wrote:
>>
>>
>>Bjorn Brandstedt wrote:
>>
>>>I found one recipe for making biodiesel, which involves methanol and
>>>cooking oil. The proportions were 20% methanol and 80% oil with caustic
>>>soda as a catalyst. The price of methanol is about $20.00/gallon and low
>>>cost supermarket cooking oil may cost about $4.00/gallon. Using these
>>>ingredients, a batch of 10 gallons comes to a wopping $72.00.
>>>That's a far cry from $.55/gallon...
>>>
>>>What am I missing here? What other recipes are there?
>>
>>
>>Bjorn,
>>I'm guessing that what you are missing is the idea to get USED cooking oil
>>from local resturants rather than buying it new, and filter it well. If
>>you can get it for the trouble of draining it and carrying it home, then
>>the cost goes down $4 @ gallon for 80% of the volume of the mixture.
>>Otherwise, you're right; it would be cost prohibitive to home-brew it.
>>Jay Travis
>>
>>
>>
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>
>
>
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