[Bioconversion] Holistic-Fuel
Les Blevins
lbj4 at mindspring.com
Sun Feb 12 12:03:45 EST 2006
Jeff,
Wow, reading through your posting on Holistic-Fuel it seems you have
invented a whole new occupation for farmers.
And here I was trying to facilitate farmers using their farm byproducts as
fuel just as they would go into the field and get it with their balers,
before it all blew away, and without making a new career out of it.
Now lets figure out who's going to do the farmers work for them.
Les
----- Original Message -----
From: "Jeff Davis" <jeff0124 at velocity.net>
To: <bioconversion at listserv.repp.org>
Sent: Sunday, February 12, 2006 10:03 AM
Subject: [Bioconversion] Holistic-Fuel
Dear List,
This study of the charcoal fireball has been a stimulating adventure. It
started in the fall of 2005 while scanning the archives. Looks like we have
John Tatom and Tom Reed to blame for this.
After some luck with charcoal someone mentioned paper. I have lost track who
but I think it was a stove lister. The paper fireball is quite intriguing, I
must say. It gave me inspiration to start to study pulp fiber and paper.
Interesting how parallel the world of paper is to our biomass fuel.
Interwoven between fuel, stoves and gasification is sustainability! That is
the driving force behind the title of this e-mail, Holistic Fuel.
So what about this goofy idea of holistic fuel/fireballs? Well, paper sticks
together because of interlocking particles called fiber and hydrogen
bonding.
I also theorize that charcoal dust could be mixed in with the fibers.
This is an odd process that I hope can unify many odd potential fuels like
switchgrass, algae, waste vegetables, paper waste, etc. Oh, algae is also a
reported binder. I do not see this as a large scale process, more as a
process for the individual or small farm. It is not meant to replace another
process but to add one more option to the list.
Allow me to give an overview of the process as I see it at this point in
time.
Lets use switchgrass as an example. Let it go dormant as long as possible.
Mow and wind row it. We are in no hurry to collect it at this point, like
hay. This is called retting, gleaned from paper making. This should do three
things: 1. leach nutrients back into the soil. 2. Easier to pulp. 3. Burn
better (Roger Samson). I would not use the term biodegrade here. My reason
is
that this retting process is a beneficiation technique, not degrading. In
the
spring, after the snow is off, would be the time I would harvest it. I plan
to start with just a forked high-lift, like they use in Russia. But you can
use your preferred method. One can collect a lot with just a hay fork and
wagon.
Kind of nice not having to worry about keeping your fuel dry or how to store
it (to a point). Sometimes lazy is best. Next we load the hollander beater
with switchgrass and water. The hollander is home built, I think it is
doable. I plan on building a small one first. Check out my web page for some
work on how much power is needed.
Now we end up with pulp and what I would like to name “bio-tea”, named after
manure-tea. My hope is to use it as fertilizer. First we return something,
to
the soil, with retting and now with bio-tea. Not sure if this could be used
in a digester and I doubt that it could be used to make alcohol, any ideas?
Next comes the fireballing agglomeration part. The formation of fireballs
with
charcoal dust is quite different from fireballing wet pulp. By far the most
documentation is on the balling of dust. One starts with a rotating drum,
disc or cone. Add dust, next a spray of water and the balling agglomerations
begins. A lot has been written about this but balling agglomerations with
wet
feed stock has only been hinted to, in my readings. I have found it to be
more difficult. But balling agglomerations is more art than science, most
has
been learned empirically! Also a lot of progress has been made on the
science
end.
One way to look at wet feed stock balling agglomerating is as an opposite
to
dust balling. In pulp balling your feedstock is wet and you add dust to help
create or keep the formation of balls. I did this by adding dry sawdust.
If the moisture is just right it will ball but the window seems vary small,
in
regards to just pulp in the balling agglomerator.
The third way that I was able to produce fireballs with wet pulp was by
crumbling the pulp into the agglomerator. At this point in time I believe
that this method would be the most repeatable, also the driest. It appears
there is no nucleus formation/growth as in dust balling. I think of this as
a
two stage agglomerator. The first stage meters the size of the pellet and
the
rolling gives it shape and structure/density.
At this point the green ball is wet and must be dried somewhat, if any
quantity is going to be made and they will be piled.
Looking forward to balling algae. It should prove easier to macerate. This
would lead one to believe that the fireballing of algae would have low
energy
requirement. If algae prove successful and has good combustion qualities,
fireballs could find a home on the small farm or homestead. Most small farm
land, were I live, is a hodge-podge of dry and wet soil. In the areas of a
field that is dry (good drainage) plant switchgrass or ag products. The wet
areas would make good subjects for algae ponds. An algae pond is natures
bio-reactor/solar collector.
Today we are blind to the fact that land has varying features. We tend to
plow
right over (figure of speech) the wet areas. If we could learn to read the
land better we would do a better job of working it.
After our new species of fuel is burned the ash/char would be spread on the
fields. It could also be possible to mix it with bio-tea. Now we have
returned something to the field three times via retting, bio-tea and
ash/char. I think Tesla would approve (hint: #3).
Alcohol connection: Seems like I have read that alcohol can be made out of
paper. If so, maybe it would be possible to make it from this pulp and
possibly make fireballs out of the left over mash. If the pulp was from
eatable stock the fireballs could be feed to animals. But I will have to
look
into this.
--
Jeff Davis
Somewhere 20 miles south of Lake Erie, USA
http://www.velocity.net/~jeff0124
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