Waste Oil company scammers!
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Originally Posted By: kschachn
Originally Posted By: surfstar
Originally Posted By: MotoTribologist
Originally Posted By: SHOZ
I said that waste oil could have the lighter components driven off and the result is tar.
I would be very interested in seeing that kind of alchemy first hand
Don't change the oil in a sludge-prone car?
It would still be oxidized oil, not longer chain hydrocarbons somehow reformed in the engine.
Well, as you said yourself just above, oxidised oil can increase in viscosity, since it polymerises, so longer chain hydrocarbons are somehow reformed in the engine.
That's of course not the same as saying cars make bitumen. As well as polymerised hydroperoxides and carboxylic acids formed by oxidation, sludge can contain lots of other stuff, including coke (from thermal breakdown) fuel residues (from,..er..fuel) and water, so it probably isn't the same as bitumen, and even if it was the yield would be very low.
Its conceivable that waste oil could be used as a feedstock for deliberate physico-chemical processing which would make bitumen, BUT you'd be starting with a product that has been produced to more-or-less specifically resist what you are trying to achieve, and you'd be using it to create something that you can dig out oven-ready from a lake in Trinidad in very big bucketloads.
Doesn't seem likely to be economic.
If you're going to refine waste motor oil into anything, motor oil would seem to be a better choice.
Even in the USA it probably costs more than tar does.
Originally Posted By: surfstar
Originally Posted By: MotoTribologist
Originally Posted By: SHOZ
I said that waste oil could have the lighter components driven off and the result is tar.
I would be very interested in seeing that kind of alchemy first hand
Don't change the oil in a sludge-prone car?
It would still be oxidized oil, not longer chain hydrocarbons somehow reformed in the engine.
Well, as you said yourself just above, oxidised oil can increase in viscosity, since it polymerises, so longer chain hydrocarbons are somehow reformed in the engine.
That's of course not the same as saying cars make bitumen. As well as polymerised hydroperoxides and carboxylic acids formed by oxidation, sludge can contain lots of other stuff, including coke (from thermal breakdown) fuel residues (from,..er..fuel) and water, so it probably isn't the same as bitumen, and even if it was the yield would be very low.
Its conceivable that waste oil could be used as a feedstock for deliberate physico-chemical processing which would make bitumen, BUT you'd be starting with a product that has been produced to more-or-less specifically resist what you are trying to achieve, and you'd be using it to create something that you can dig out oven-ready from a lake in Trinidad in very big bucketloads.
Doesn't seem likely to be economic.
If you're going to refine waste motor oil into anything, motor oil would seem to be a better choice.
Even in the USA it probably costs more than tar does.
Originally Posted By: NWCoaster
Bitumen is NOT asphalt.... sorry, you are wrong on that one.....
??????
https://en.wikipedia.org/wiki/Asphalt
Bitumen is NOT asphalt.... sorry, you are wrong on that one.....
??????
https://en.wikipedia.org/wiki/Asphalt
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