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Juicing crop feedstock for ethanol - Page 16

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Posted by z on April 15, 2010, 5:15 pm

Curbie I do apple cider every year down at my nighbors.  She's got an apple
grinder for the first stage before they go into the press. So I was
thinking something similar might work for you. Just searching I found this:


which maybe you could scale up.  Apples are pretty soft so this guy just
used wood -- which might work for you too.  I'm not sure how tough those
stalks are.. and I suppose they have fibers.

Hey maybe after you press them you could make your own paper out of the
left overs.  


Posted by Curbie on April 15, 2010, 8:00 pm


How've you been?

Yours and Jim's posts sparked another design, which I laid out in
Jim's post, thanks for the feedback. A very nice little DIY apple


Posted by Curbie on April 15, 2010, 8:50 pm


One other thing I forgot to ask you, IIRC you posted about some
special screen your hydro system uses to prevent debris from entering
your feed water, basically separating water from debris. Do you think
that special screen might be of any value in my juicing context???



Posted by z on April 15, 2010, 9:16 pm

maybe.  I think you probably want to have the stock mash in with the
juice during your fermenting though don't you?  All I know is when you
make wine you leave the crushed fruit in with the liquid (called a must)
for the first stage of fermentation.  Then you filter that out later on
-- but then again maybe that is for flavor (which isn't your concern i
would guess!).

Here is a page with info on where I got my screen.  Those guys at Coanda
Intakes were very helpful and might be able to answer some questions:

Somewhere I have a message from someone about how they found a plastic
version of those screens.  As you can imagine the stainless ones are not
cheap.  I'm going to see if I can find that nugget --

good luck dude!


Posted by Curbie on April 15, 2010, 11:28 pm


fermenting though don't you?
For wine and other feedstocks you're correct, one of the problems with
ethanol is the processing varies with each type of feedstock, with
Jerusalem Artichokes in the process I'm following (and there are other
ways for JA), not so, I'm just collecting and processing the sugars in
the stalks, not the starches in the tubers which would be advantageous
to process with the tuber pulp.

I'm knowingly traded some ethanol potential with this way in favor of
reduced feedstock processing and handling, if I can process the sugars
in the stalks (low hanging fruit) I can always go after the tubers
later to increase yields or leave all or some of them in the ground to
start next year's crop, JA is kind of a weed and very hardy.

If you or anyone is interested here the patent I'm working from.

Coanda screen, that's the one I was thinking of.



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