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I have done some reading and they say Bio Diesel made of Peanut Oil will gell up below 60 degrees F. And one of my suppliers who will give me free oil, they use peanut oil. Well I would like to use it, and I got two questions.
One: Does anyone have a 'recipe' for making bio diesel out of used peanut oil
Two: Is there anything I can add to it (And other biodiesels) to keep it from geling? I assume mixing regular diesel with it would help but I like some DIY stuff better. I was wondering about adding some 'Power Service' to my batches once there done.
Thanks again guys, been really helpful.
__________________ JESSE: Service Technician GM
1989 Ford Bronco XLT 351/Auto/4X4
A couple years ago I had a restaurant that used peanut oil which I made into biodiesel. It was in very good condition with an average KOH titration of .5-1.0. It made great bio, but yes, it clouded at just under 60F, and would gel at just under 50F. But to answer your first question, the recipe is the same for peanut oil as it would be for any other wvo.
Aside from cutting it with pump #2, there's not anything out there I have heard of that will lower the gel point of biodiesel. I've 'heard' about some things in the works, but haven't seen any firsthand.
One thing that I have done however is a process called cold fractioning. What I did was to allow a drum of my bio to 'freeze', or gel up during one of the winter cold snaps. A few weeks later when the temps rose and the bio let go, I was left with some clearer bio on top which I pumped off and used, saving the gelled portion for later use in the warmer months. On average I would get 25%-30% of the clearer stuff off the top.
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