I have been researching Biodiesel for a while now. I have read many of the comments on this forum as well as other sites. I am ready to attempt my first test batch of biodiesel. I would like to make several 1 quart test batches. I have 3 gallons of used peanut oil and I have located some small sources of methanol, suitable for a test batch. My problem right now is finding a suitable source of KOH for a test batch. I haven't tried calling any chemical supply places yet because right now I am only interested in very small quantities just to use for a test. Does anyone know of a good place (on the internet or otherwise) that has small quantities of KOH suitable for BD? I realize I may have to pay a premium for such a small quantity but I can't justify buying a large quantity right now. I live in central Kentucky, if that helps any.

 

Not a problem..............If all you want to do is some test batches, just use NaOH. Koh is much better for processing, but NaOH will work just fine for small tests and is availible from your local hardware store [ red devil lye].


FABMANDELUX.

 

Thanks!!!!

How much NaOH would you recommend for 1 quart of WVO? I know it is a different ratio than KOH.

 

Both require base amounts: NaOH needs a base # of 5.5 grams per LITER
KOH needs a base of 7.5 grams per liter


Then you add the extra required from your titration, virgin oil needs no extra amount. I use 2 liter pop bottles for testing, no cost, and I can throw them away!



FABMANDELUX.

 

Thank you!!! I'll let yall know how it turns out.

 

Hey Fabman- I thought you didn't do titration??? LOL

 

I haven't for over 2 years But everybody needs to start somewhere, and I didn't want to confuse him.


My oil titrates out about 3, with a KOH base of 7.5 = 10.5 gms/ltr. I use 14 gms/ltr, 3.5 gms extra. This extra KOH forces the reaction to completion.




FABMANDELUX.