Acorns as fuel

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Dave
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Acorns as fuel

Post: #177218 Dave
Sun Nov 15, 2009 12:15 pm

I stumbled across something very interesting while looking for edible uses of acorns - it appears they are high in oil and therefore could be a potential source of bio-diesel!

The thing is I have zero equipment to do any tests on them, so this is a plea really, does anyone have access to an oil press? Or would anyone like to experiment and let me know what happens.

I've only found one reference to someone trying http://www.biofuelsforum.com/making_biodiesel/351-pressing_oil_acorns-2.html but he appears to have given up - plus he was trying in May when I presume most of the oil has dried out over the winter.
So who wants to be the inventor of the world most environmentally friendly fuel - Acorn bio-diesel?

Follow this link http://article.pubs.nrc-cnrc.gc.ca/RPAS/rpv?hm=HInit&journal=cjc&volume=31&calyLang=eng&afpf=v53-151.pdf for a paper on the oil content of acorns.

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Re: Acorns as fuel

Post: #177222 mrsflibble
Sun Nov 15, 2009 1:13 pm

no access to an poil press, but i have plenty of acorns.
oh how I love my tea, tea in the afternoon. I can't do without it, and I think I'll have another cup very
ve-he-he-he-heryyyyyyy soooooooooooon!!!!

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Re: Acorns as fuel

Post: #177223 Dave
Sun Nov 15, 2009 1:47 pm

Well that's one half of the problem sorted - I've just emailed an oil-pressing company to see if anyone has done this before and if its feasible, I'll let you know what they say.
It would be good if someone on this forum can do it first, but that's just vanity on my part :icon_smile:

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Re: Acorns as fuel

Post: #177230 dave45
Sun Nov 15, 2009 3:09 pm

or you could just use them in your wood-burner :-)

I'd imagine you'd have problems producing acorns on an industrial scale anyway.

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Re: Acorns as fuel

Post: #177233 contadina
Sun Nov 15, 2009 3:51 pm

A shovel full on the wood burner keeps it ticking overnight.

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Re: Acorns as fuel

Post: #177248 Dave
Sun Nov 15, 2009 6:58 pm

Got a rely very quickly from the oil pressing guy (see below), not sure I like what he's referring to with the 'choose another nut' but I think I can take that on the chin. So it might be possible with hexane extraction or a high oil acorn variety.

"Hi Dave, If I have read the article right there is only 4.6% oil in an acorn. This is far too low to press out mechanically. It seems they used solvent extraction, not something I'm able to do I'm afraid.

Choose another nut!!"

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Re: Acorns as fuel

Post: #177297 grahoom
Mon Nov 16, 2009 9:40 am

Dave wrote:Got a rely very quickly from the oil pressing guy (see below), not sure I like what he's referring to with the 'choose another nut' but I think I can take that on the chin. So it might be possible with hexane extraction or a high oil acorn variety.

"Hi Dave, If I have read the article right there is only 4.6% oil in an acorn. This is far too low to press out mechanically. It seems they used solvent extraction, not something I'm able to do I'm afraid.

Choose another nut!!"


beech nuts - they have higher oil content that acorns...
|You can't feel lonely with nature as your companion| millican dalton

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Re: Acorns as fuel

Post: #177330 Millymollymandy
Mon Nov 16, 2009 1:18 pm

ha ha, I thought he was referring to himself as a nutter! :lol:
boboff wrote:Oh and just for MMM, :hugish: (thanks)


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Re: Acorns as fuel

Post: #177367 Splottlings
Mon Nov 16, 2009 6:04 pm

With regards to using acorns (or other nuts) as woodburner fuel, do you need to dry them out first or can one use them fresh and does anyone know which are the best to use?

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Re: Acorns as fuel

Post: #177370 contadino
Mon Nov 16, 2009 6:45 pm

No nut that I know of will burn at all fresh. You need to dry them first. However, as the wife says, a shovel of dry acorns on the embers last thing before bed, and they fire will still be burning in the morning.

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Re: Acorns as fuel

Post: #177399 Splottlings
Mon Nov 16, 2009 9:21 pm

Cool thanks, will get collecting and drying.

New woodburner in last weekend so we're discovering the delights of cooking stews and what woods burn best, had never heard of the acorn trick before so look forward to trying it out and the joy of it still happily embering away the next morning.

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Re: Acorns as fuel

Post: #177442 Millymollymandy
Tue Nov 17, 2009 6:22 am

They'd just fall through the grill of mine so no good, shame cos I've got millions of acorns. Not that I want to go out collecting them because that would take a month of Sundays!
boboff wrote:Oh and just for MMM, :hugish: (thanks)


http://chateaumoorhen.blogspot.com/

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Re: Acorns as fuel

Post: #177459 contadina
Tue Nov 17, 2009 8:32 am

Millymollymandy wrote:They'd just fall through the grill of mine so no good, shame cos I've got millions of acorns. Not that I want to go out collecting them because that would take a month of Sundays!


The ones we use are ginormous, it's bizarre as the trees are more like shrubs, yet they produce acorns at least twice the size of the ones that a giant oak would produce. Collecting them takes no time at all. Find a tree, look down and discover a carpet of acorns.

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Re: Acorns as fuel

Post: #177499 Millymollymandy
Tue Nov 17, 2009 11:45 am

I wonder what kind of oak that is? I just have the bog standard ones. I might just collect a few and dry them to try it out though and shove them in the back of the burner away from the grill. They don't explode do they like chestnuts? :iconbiggrin:
boboff wrote:Oh and just for MMM, :hugish: (thanks)


http://chateaumoorhen.blogspot.com/

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Re: Acorns as fuel

Post: #177520 contadino
Tue Nov 17, 2009 1:10 pm

contadina wrote:
Millymollymandy wrote:They'd just fall through the grill of mine so no good, shame cos I've got millions of acorns. Not that I want to go out collecting them because that would take a month of Sundays!


The ones we use are ginormous, it's bizarre as the trees are more like shrubs, yet they produce acorns at least twice the size of the ones that a giant oak would produce. Collecting them takes no time at all. Find a tree, look down and discover a carpet of acorns.


I think a little bit of confusion has crept in there. The oaks that produce the massive nuts are big trees (I don't know the strain, but they're called Querca in Italian) - the little oak bushes are holm oaks (and they produce normal-sized nuts.)


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