RE: Bio Diesel mix...need help

From: Hutterer, John (MPAU) (john.hutterer@smiths-medical.com)
Date: Tue Jan 03 2006 - 08:51:21 PST


Steve,

Here is the phone number for the Red Devil Lye Company. Give them a
call, since that is what Bjorn uses. Red Devil Lye 800-228-4722

John

-----Original Message-----
From: Military Vehicles Mailing List [mailto:mil-veh@mil-veh.org] On
Behalf Of Scuba Steve
Sent: Tuesday, January 03, 2006 10:22 AM
To: Military Vehicles Mailing List
Subject: [MV] Bio Diesel mix...need help

Hi List
  I am having trouble finding pure sodium hydroxide at my local hardware
store. I have found lye crystals which contain sodium hydroxide but
nothing gives me the complete ingedients so I am not sure what I can or
can't use. Any help would be appreciatted.
Steve

--- Bjorn Brandstedt <super_deuce@hotmail.com> wrote:

>
> The biggest hurdle to overcome is a source for used cooking oil. It
> took me about a year, but I finally found a local deli/restaurant that

> was willing to give me all their used fryer oil. They pay $200/year to

> have it hauled off and didn't care who got the oil.
> So, twice a week I bring a steel trash can to the deli and they fill
> it with hot, and I mean hot, oil. It's about 14 gallons each time and
> it is actally very clean (quality restaurant :-)) . The temp of the
> oil is about 280 deg F when I arrive home.
> The processing is best done at about 120 F, so I dilute the hot stuff
> with cold (from past deliveries) until the right temp results.
> On a table right by the door in the garage I have two 12 gallon clear
> plastic storage tubs, which I now fill with 30 liters each of the 120
> F oil.
> For each of the tubs I prepare 6 liters of methanol with 150 mg of lye

> (Red Devil drain cleaner is pure sodium hydroxide=lye). I stir the
> methanol and lye until the lye is completely dissolved (about 15
> minutes) in a 2-gallon
> glass jug (cookie jar, I guess).
> Next, I pour the methoxide into the warm oil and stir using a wooden
> spoon.
> There are three phases to this part, first a clear layer is formed on
> top, more stirring and the whole mixture becomes muddy brown and the
> final phase is a clear light brown liquid. The stirring takes
> 1/2 hour. The occasional
> french fry is pick out with the spoon, some end up in the glycerine.
>
> That's it, after a day or so (I let it sit until next oil pick-up), a
> 1 inch layer of glycerine accumulates on the bottom of the tub. The
> rest is biodiesel, a amber colored liquid, which has the viscosity of
> hot cooking oil. I filter it through a 5 micron filter sock before
> storing it in the empty containers I also get from the restaurant.
> These are the 5-gallon
> cardboard enclosed plastic jugs that the oil comes in.
>
> This biodiesel is "unwashed", which is to say that it contains a small

> residue of methanol and lye. I use it like this and per "From the
> fryer to the fuel tank" book, it's ok.
> For more info on this and the washing procedure, just google it, lots
> of hits.
> I use the deuce with the crane often just at low rpm, say 1,200 and it

> starts right up with very little smoke. It does smell like french
> fries or something like it. People get a kick out of it.
> I now have over 1,000 highway miles on a percentage of biodiesel
> varying from 10% to 95%(currently). I have 70 hours on the hour meter
> with bidiesel.
> Biodiesel is not good for ambients below 60 deg F, so I'll be
> switching over in a couple of months, I guess.
> Performance: Slightly fewer miles/gallon, 8.5 vs 9.5 for petro diesel.
> Slightly cooler EGT and a little less turbo boost.
> (my compensator is not
> bypassed). The engine has a -1D turbo (non whistler).
>
> Cost: About $0.75/gallon.
> Time: About 2 hours (including pickup) for 18 gallons of finished
> product.
> That usually twice a week.
>
> Let me know if you want a sample, we can work something out for say a
> gator aid bottle mailed USPS (no hazmat charge). That goes for the
> glycerine degreaser too.
>
>
> The methanol comes from a gocart fuel dealer(?) for $2.50/gallon. Red
> Devil from the local grocery store. Drano doesn't work, it's not pure.
>
> The glycerine mix at the bottom of the tub is a great degreaser. I
> tested it on the oily front axle of the deuce and after rinsing with
> water, the axle came out clean and free of oil. Got about 10 gallons
> of that stuff.
>
>
> Bjorn
> MVPA19212
> The Blue Ridge Mountains of Virginia
>
> PS. When steelsoldiers(dot)com gets back on line,
> check for more in the
> "Alternate fuel, biodiesel" section.
> BB
>
>
>
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