Wood Gas Generator

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Wood Gas Generator don 04-07-2008
Posted by Neon John on April 12, 2008, 5:02 pm
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>Interesting idea. Sounds possible. I don't know how the process works but
>if you put beans in my body a large quantity of methane gas is produced in a
>short period of time. There must be more efficient ways to get the gas out
>of there. I've noticed that algae grows very rapidly under the right
>conditions so I think you are on to something there. Maybe algae working on
>the beans I don't know if you need a PHD to get a government grant but many
>of the ideas presented in this NG certainly have a lot more merit than some
>of the crap the people DO get grants for. OTOH I read somewhere that the
>government recently spend tons of money try to *prevent* beans from making
>gas because flatulation was contributing to global warming.

Funny, beans do the same thing to me. Visualize a tube running from your seat to
your engine. "Eat more beans, Ma. We got another mile til home!"

Seems to me that something set up along the lines of conventional fermentation
would
be more practical. There are very aggressive strains of yeast now available
that
will continue to work in high alcohol concentrations. I can envision a
continuous
process where wort is taken from the fermenter, filtered and low-temperature
distilled in a continuous process, with the reduced alcohol content bottoms fed
back
into the fermenter.

I would expect this to run continuously until some other impurity built up in the
wort sufficiently strong to inhibit the yeast. Then simply start another batch.

If what I read is correct, they've developed yeast strains that digest
cellulosive
fibers as well as sugars. If that isn't true then one should be able to set up
another digester to feed the fermenter. The digester could contain bacteria
like are
in the stomach of a cow that do the cellulose to food conversion. I understand
those
bacteria produce lots of methane too.

Out the other end, ethanol would be a LOT easier to handle than either hydrogen
or
methane. A little more work than a simple digester but if one has access to a
junk
yard...


>As for the "save the grass" people I'm pretty sure there are a lot of people
>opposed to cutting bamboo in China because it's the Panda's primary food.

Only problem I see with bamboo is that it takes a LONG time to dry. I have a
stand
of bamboo on one of my properties. When the stuff is still growing the space
between
the dividers is filled with a moist substance. It takes a great deal of time
for a
mature stalk to dry. Perhaps running the harvested stalks through a sorghum
crusher
would speed things up.

>Here we have people going around trying to save rattlesnakes. The way I
>look at it is every time I kill a rattlesnake I'm saving the lives of dozens
>of kangaroo rats. They want to save those too. They probably also want to
>save whatever it is the kangaroo rats eat. In any case bamboo sounds like a
>good possiblity.

Knuckle-headed state game people here have imported 1500 copperhead snakes to the
Hiwassee basin, claiming that the wild hogs have reduced the population too low.
About 0 population is about right to me. You really have to wonder what kind of
government drug those people are taking to come up with crazy ideas like that...

Meanwhile many of us are working diligently to send the population back to 0.

John
--
John De Armond
See my website for my current email address
http://www.neon-john.com
http://www.johndearmond.com <-- best little blog on the net!
Tellico Plains, Occupied TN
No one can be right all of the time but I'm getting close.


Posted by daestrom on April 13, 2008, 2:08 pm
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> wrote:
>
>
>>Interesting idea. Sounds possible. I don't know how the process works
>>but
>>if you put beans in my body a large quantity of methane gas is produced in
>>a
>>short period of time. There must be more efficient ways to get the gas
>>out
>>of there. I've noticed that algae grows very rapidly under the right
>>conditions so I think you are on to something there. Maybe algae working
>>on
>>the beans I don't know if you need a PHD to get a government grant but
>>many
>>of the ideas presented in this NG certainly have a lot more merit than
>>some
>>of the crap the people DO get grants for. OTOH I read somewhere that the
>>government recently spend tons of money try to *prevent* beans from making
>>gas because flatulation was contributing to global warming.
>
> Funny, beans do the same thing to me. Visualize a tube running from your
> seat to
> your engine. "Eat more beans, Ma. We got another mile til home!"
>
> Seems to me that something set up along the lines of conventional
> fermentation would
> be more practical. There are very aggressive strains of yeast now
> available that
> will continue to work in high alcohol concentrations. I can envision a
> continuous
> process where wort is taken from the fermenter, filtered and
> low-temperature
> distilled in a continuous process, with the reduced alcohol content
> bottoms fed back
> into the fermenter.
>

Heard a story on the news the other day where scientists are working with an
enzyme found in the second chamber of a cow's stomach. This enzyme breaks
down cellulose into simple sugars, which can then be fermented into alcohol.
It seems cellulous fermentation into alcohol is the 'holy grail' of biomass
technology these days.

daestrom


Posted by Ulysses on April 13, 2008, 5:07 pm
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wrote:
>
>
> >Interesting idea. Sounds possible. I don't know how the process works
but
> >if you put beans in my body a large quantity of methane gas is produced
in a
> >short period of time. There must be more efficient ways to get the gas
out
> >of there. I've noticed that algae grows very rapidly under the right
> >conditions so I think you are on to something there. Maybe algae working
on
> >the beans I don't know if you need a PHD to get a government grant but
many
> >of the ideas presented in this NG certainly have a lot more merit than
some
> >of the crap the people DO get grants for. OTOH I read somewhere that the
> >government recently spend tons of money try to *prevent* beans from
making
> >gas because flatulation was contributing to global warming.
>
> Funny, beans do the same thing to me. Visualize a tube running from your
seat to
> your engine. "Eat more beans, Ma. We got another mile til home!"

This is why beans will never be eaten in space. Cause of death: methane
poisoning in spacesuit.

>
> Seems to me that something set up along the lines of conventional
fermentation would
> be more practical. There are very aggressive strains of yeast now
available that
> will continue to work in high alcohol concentrations. I can envision a
continuous
> process where wort is taken from the fermenter, filtered and
low-temperature
> distilled in a continuous process, with the reduced alcohol content
bottoms fed back
> into the fermenter.
>
> I would expect this to run continuously until some other impurity built up
in the
> wort sufficiently strong to inhibit the yeast. Then simply start another
batch.

I started thinking along the lines (using my intestines as a model) of a
tank filled with whatever it is that works, heated by sunlight (a couple of
parabolic reflectors if needed) continuously producing some kind of
flammable gas connected directly to an engine. A water trap would probably
be necessary.

>
> If what I read is correct, they've developed yeast strains that digest
cellulosive
> fibers as well as sugars. If that isn't true then one should be able to
set up
> another digester to feed the fermenter. The digester could contain
bacteria like are
> in the stomach of a cow that do the cellulose to food conversion. I
understand those
> bacteria produce lots of methane too.
>
> Out the other end, ethanol would be a LOT easier to handle than either
hydrogen or
> methane. A little more work than a simple digester but if one has access
to a junk
> yard...
>
Ok, so maybe it can make methane, alcohol, and cook beans. Kinda like a
portable Cinco de Mayo festival.


Now I'm wondering how much gas is being produced by my septic tank. That
can't work because it's too obvious.

>
> >As for the "save the grass" people I'm pretty sure there are a lot of
people
> >opposed to cutting bamboo in China because it's the Panda's primary food.
>
> Only problem I see with bamboo is that it takes a LONG time to dry. I
have a stand
> of bamboo on one of my properties. When the stuff is still growing the
space between
> the dividers is filled with a moist substance. It takes a great deal of
time for a
> mature stalk to dry. Perhaps running the harvested stalks through a
sorghum crusher
> would speed things up.
>
> >Here we have people going around trying to save rattlesnakes. The way I
> >look at it is every time I kill a rattlesnake I'm saving the lives of
dozens
> >of kangaroo rats. They want to save those too. They probably also want
to
> >save whatever it is the kangaroo rats eat. In any case bamboo sounds
like a
> >good possiblity.
>
> Knuckle-headed state game people here have imported 1500 copperhead snakes
to the
> Hiwassee basin, claiming that the wild hogs have reduced the population
too low.
> About 0 population is about right to me. You really have to wonder what
kind of
> government drug those people are taking to come up with crazy ideas like
that...

Wow. Maybe it's really part of the human population control. Personally I
have no sympathy for any snake that needs to have poisonous fangs in order
to eat. King snakes and Gopher snakes seem to get along just fine without
them. If I see a gopher snake crossing the road I wait until it passes. If
I see a rattlesnake I run over it, back up, and run over it again. I don't
know about copperheads but rattlesnakes will stand there and dare you to
shoot them again. What do the hogs do with them? Just kill them because
they hate them?

>
> Meanwhile many of us are working diligently to send the population back to
0.
>
> John
> --
> John De Armond
> See my website for my current email address
> http://www.neon-john.com
> http://www.johndearmond.com <-- best little blog on the net!
> Tellico Plains, Occupied TN
> No one can be right all of the time but I'm getting close.
>



Posted by Ulysses on April 17, 2008, 11:35 am
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>
> wrote:
> >
> >
> > >>
> >
> > >Now I'm wondering how much gas is being produced by my septic tank.
That
> > >can't work because it's too obvious.
> >
> > I don't see why not. It might not make a useful amount of gas but the
> basic
> > process is the same one they use in sewage treatment plant digesters.
The
> > plant my grand dad operated made just about enough methane to fuel the
> sludge
> > dewatering plant. Big steam-heated drums that turned sludge into
> fertilizer
> > chips. The plant had a flaring tower but it practically never had to be
> used.
>

I've been reading about homebrew methane producers and it looks like first I
need to get some chickens. For the giant inner tube design you need three
one pound coffee cans of chickensh*t per day. I wonder how many chickens
that is. I was thinking about getting some chickens anyway. The bobcats
and coyotes are anxiously awaiting their arrival.

I tried putting a plastic bag over a pipe that goes to my septic tank but it
did not fill up with gas. I'm not even sure what the pipe is for.

Woodgas is beginning to look more appealing after all.



Posted by daestrom on April 19, 2008, 6:49 am
Please log in for more thread options

> wrote:
>
>
>>>
>>Ok, so maybe it can make methane, alcohol, and cook beans. Kinda like a
>>portable Cinco de Mayo festival.
>
> :-)
>
>>
>>
>>Now I'm wondering how much gas is being produced by my septic tank. That
>>can't work because it's too obvious.
>
> I don't see why not. It might not make a useful amount of gas but the
> basic
> process is the same one they use in sewage treatment plant digesters. The
> plant my grand dad operated made just about enough methane to fuel the
> sludge
> dewatering plant. Big steam-heated drums that turned sludge into
> fertilizer
> chips. The plant had a flaring tower but it practically never had to be
> used.
>
> A couple years ago I stopped at the Fair Oaks dairy farm in Iowa, a huge
> factory farm with about 27,000 cows being milked. According to the tour
> guide, they'd recently installed a methane plant to digest all the cow
> crap.
> It was making almost enough electricity to run the place. When the tour
> bus
> drove by, it was up and running and turning sh*t into SHINEola :-)
>

Years ago when taking some business class, we worked out the benefits of
'harnessing' all the manure from the Saratoga Springs racetrack. We figured
all those horses put out a lot, so what the heck.

Two things we found out. 1) Horse manure is not as good as cow manure
because cows digest cellulose better (four stomachs and all) 2) The
Saratoga Race track was already doing it !!!

The output from the digester is still an excellent fertilizer, and after
drying doesn't smell nearly as bad as when going into the digester :-)

daestrom


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