Thread: Where do you get the Veg from?

It is my belief that to turn sump oil into diesel is possible but requires a more complex refining / distilling setup. It is my recollection back to science class that the oil is need to be heated up to a relatively high temperature similar to a distilling process. As the temperature is increased and the oil refined more, I think first you get like a parifin tye wax, then kero, then diesel then petrol.
Any thing is duable if you want to spend enough money. I feel that turning sump oil into diesel is beyond the average back yard, and why have we not heard more about it until now?

Originally Posted by crash

It is my belief that to turn sump oil into diesel is possible but requires a more complex refining / distilling setup. It is my recollection back to science class that the oil is need to be heated up to a relatively high temperature similar to a distilling process. As the temperature is increased and the oil refined more, I think first you get like a parifin tye wax, then kero, then diesel then petrol.
Any thing is duable if you want to spend enough money. I feel that turning sump oil into diesel is beyond the average back yard, and why have we not heard more about it until now?

Did you not look at my earlier response to this thread? I did not make any mention of changing sump oil into distillate. I informed the forum of the long available equipment to clean sump oil and meter it into a bulk fuel installaion. Compression ignition ( diesel ) engines run on virtually anything that will ignite when heated. distillate, corn flour, coal dust, very crude and dirty, gritty oils, etc. Distillate is a light oil. add (clean) sump oil to it and you are burning less money.

You can but a rig from Cummins that you put one end into a drum of sump oil and another line into your fuel tank.
It sucks diesel from your tank and the dirty sump oil blends it together and filters it out.
They were about $5000.00 when I last looked it up.

There was also a rig I saw when I was in the navy.
It would be connected to the marine engines sump. As I understand it could also be used on any drum stock oil which had been contaminated as well.

Not that its really relevant but interesting anyway
It would suck up the oil from the sump, add water and then filter it all out and return the clean oil to the sump.
Before anyone asks the why water was used to remove the sulfur builds up in oil over time. There was one case where some wally didn't connect the water line up to the rig, thinking he was smarter. You see sulfur combines with water to make sulfuric acid bad karma. Sulfuric acid also fills batteries and they give off hydrogen gas at the battery is used. Over several years of not using the rig correctly the sulfur get really really high, a failure in the cooling system caused water to enter the crank case and it was the resulting hydrogen gas that exploded.

Originally Posted by Brian Hjelm

Did you not look at my earlier response to this thread? I did not make any mention of changing sump oil into distillate. I informed the forum of the long available equipment to clean sump oil and meter it into a bulk fuel installaion. Compression ignition ( diesel ) engines run on virtually anything that will ignite when heated. distillate, corn flour, coal dust, very crude and dirty, gritty oils, etc. Distillate is a light oil. add (clean) sump oil to it and you are burning less money.

for an early diesel engine i would be using sump oil thinned out with a bit of diesel or kero....

but in a late model Td5.......?
these are supposed to be very fussy engines.....also too expensive for me to experiment with.....

the main reason for all the questions.....




if a Td5 can be run on filtered and diluted sump oil......i can get my hands on plenty of this stuff.......
we actually have to pay someone to take it away at work......

also...does the fact that sump oil has petrol dilution and other contaminants matter much....?

I have never heard of the equipment Brian is talking about, however I do know that a certain company, lets call them Ray*** have basically no R&D to speak of, and some of their filters use industrial insulation material, instead of actual filter material (only one step better than using toilet paper ). So I would be dubious about any technology they come up with.

Sump oil has a high soot content, and I would be very wary of the effect that would have on modern, close-tolerance common-rail injector pumps. It has been shown that soot can cause significant engine wear, even though the soot particles are smaller than the smallest tolerance. Soot particles can be as small as 20nm (0.020 microns) so will get through almost any fuel filter you can think of.

Yes, sump oil can be used as a diesel substitute once extensively filtered and put through a refining process, which involves high temperature and pressures. Not a built up back yard gig like the vegetable oil process.

I'd say the best bet with fine particulates would be to put it through a centrifuge. Could be a fun project to build one, but would end up getting quite expensive.

the planned system for fozzy includes

a strainer
2 sedimentors
a 30 micron filter with another sedimentro built in
and finally
either a 1 or a 5 micron filter.

since the original spec for the 2.25 only required either a 50 or 40 micron filter I think I can stop the chips getting into the injector pump...