Bio diesel

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Scottish-prepper
Posts: 12
Joined: Sun May 27, 2018 8:25 pm
Location: Fife, Scotland

Bio diesel

Post by Scottish-prepper » Mon May 28, 2018 10:19 am

Has anyone here ever tried making bio diesel or ethanol fuel to power their car or genny?

I feel for sustainability post society this would be an invaluable skill.

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DustyDog
Posts: 241
Joined: Fri May 23, 2014 7:23 pm
Location: Cumbria

Re: Bio diesel

Post by DustyDog » Wed May 30, 2018 8:37 pm

Looked in to it a few years ago when waste veg oil (Wvo) was cheap and plentiful, I didn’t seem that hard, from what I can remember, you use a catalyst (ethanol I think) having first tested it to see how much catalyst you need to separate the oil from all the gunk you don’t need, then have to wash the oil and a few other bits and bobs. I believe that a company made a device called the ‘fuel pod’ and it did all the work for you, you got your wvo, that has been filtered down to whatever micron it was, it heated then decided how much catalyst it used and so on, it even had a standard fuel pump nozzle just like a regular fuel pump you would normally use, the company reckoned that their diesel Range Rover had done 70+ thousand miles on the stuff.
But by then the cost of buying an ICB of wvo went skyward and by the time you got the stuff unless you made tons of the fuel, cost of the machine and the oil made it not worth the hassle.
So maybe in a post apocalyptic world but at the mo, it may be worth having a look and seeing if it has got any easier or cheaper but don’t count on getting waste oil for peanuts. As for ethanol fuel, couldn’t say myself.
Up in the wet Lake District.

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shocker
Posts: 631
Joined: Sun Jan 22, 2017 5:39 pm
Location: cornwall, near england

Re: Bio diesel

Post by shocker » Thu May 31, 2018 2:07 am

I made bio some years ago - it can be arduous and (a it) dangerous but if one is careful, fine. Of course research into vehicle suitability is a must as bio can have nasty effects on some engines, and kill seals on some engines that is is otherwise suitable for.

I quickly moved on to filtering my waste oil in steps down to 5 micron with cheap "sock" filters in a series of dustbins on multilevel (strong!) shelves. Then I would add a dash of unleaded, up to 10% in winter then away. Sometimes preheating of the fuel is needed in-vehicle, there are many ways to do this, Or twin-tanking and starting on dino-diesel until the engine is warm, similar to LPG/petrol.

I was running 300tdi landrovers for 2 years without problems. A mate ran his XUD engined Peugeot likewise.

I lost my workshop space and had to give it up just when I was building a new system with heaters and an old central heating pump. At that time interest was growing in cleaning up waste motor oil for fuel. I am somewhat behind the times but if you want I will look up someof the old forums and sites and post links.

Shocks
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Deeps
Posts: 4915
Joined: Sun Nov 09, 2014 8:36 pm

Re: Bio diesel

Post by Deeps » Thu May 31, 2018 6:33 am

Morning Shocker, good to see you back mate.

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shocker
Posts: 631
Joined: Sun Jan 22, 2017 5:39 pm
Location: cornwall, near england

Re: Bio diesel

Post by shocker » Thu May 31, 2018 7:08 am

Hiya Deeps ! Thanks for the welcome mate, good to be back :D ;)
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