thevidmachine (December 31, 1969 at 6:59 pm)

The test should be done before you work your batch up. If it fails then it needs more time and you leave your reaction running longer.

awol09 (December 31, 1969 at 6:59 pm)

process it again

DoctorScuba (December 31, 1969 at 6:59 pm)

Olive Oil as an additive will assist to break up the harder fats.

Floonder (December 31, 1969 at 6:59 pm)

interesting vid by the way & thx for posting

Floonder (December 31, 1969 at 6:59 pm)

i have a question for you graydonblair,ok so we have tri-glycerides in the finnished product , so what can we do to get them out of the biodiesel when we find this out?

thespazticator (December 31, 1969 at 6:59 pm)

The original diesel engine was designed to use peanut oil. Thousands of people worldwide use vegetable oil to power their own diesel cars with no problems. If you live in a climate which rarely dips below the freezing point of the oil, there should be no problem using it.Fatty acids and soaps harm your engine, not glycerol/glycerides.To run on veg oil, however, you have to do a few mods. Advance the injection timing by 2-5 degrees and decrease the injection volume.Make sure you use clean oil.

conotoxin (December 31, 1969 at 6:59 pm)

So no coking problems?

Bill6004 (December 31, 1969 at 6:59 pm)

I know very little about this process. My guess is glycerols would damage a diesel engine. The entire point of the methanolysis (NaOH + MeOH + FA + Heat) is to get the fatty acids to detach from the glycerol and replace that bond with a CH3. There would be no point in doing this if glycerol DIDN'T hurt your engine.

awol09 (December 31, 1969 at 6:59 pm)

the downside is that the raw veggie oil is too thick. you will need to run a 2 tank system, and do a bunch of mods to your car. the biodiesel is pretty much just thinned out veggie oil. it requires no mods to your car. and is easy to make.

conotoxin (December 31, 1969 at 6:59 pm)

Will the glycerols damage a diesel engine? I ask because I have an -ancient- rabbit diesel I keep around to teach people how to drive stick (hard to hurt yourself in it... it makes about 12 hp). I have considered using simple filtered canola in the car but haven't yet. What is the downside of using simply filtered and dried vegetable oil?