[Terrapreta] new address to the simple kiln

[folke Günther]

*Don't you get some CH4 during the process too? (Actually, I don't
think CO2is formed to an large extent. rather CO is formed directly
from the
decomposition of water in the carbon-rich environment. Anybody?) The process
Sean describes below explains you get a smaller output of charcoal when you
have a moist feedstock. Perhaps one should put some water on the feedstock
if there are many people sharing the wok?*

2008/5/27 Kurt Treutlein <rukurt at westnet.com.au>:

> Sean K. Barry wrote:
> >  Hi Phillip,
> >
> > > The heat from the top layer burning warms the wood below it releasing
> >  >combustible and noncombustible gases which flow up into the charcoal
> >  >layer. Glowingly hot charcoal has a wondrous ability to strip oxygen
> >  >molecules from of anything that passes over it, so it converts the
> >  >water into hydrogen, and the carbon dioxide into carbon monoxide.
> >  >These two gases are flammable.
> >
> >  I think you better check what you say here.  I do not believe this is
> >  correct.  Hot charcoal does not strip oxygen atoms from water making
> >  Hydrogen gas-H2.  It also does not strip oxygen atoms from Carbon
> >  dioxide-CO2, making Carbon monoxide-CO.  Heated biomass in the
> >  absence of oxygen (or in low oxygen environments) decomposes the
> >  biomass into Carbon monoxide-CO and Hydrogen gas-H2.  If there is
> >  oxygen present, then combustion of those two fuel gases occurs,
> >  rendering complete combustion byproducts (CO2 and H2O).
> >
> Sean,
>
> I keep telling you to learn something about gasification. There is a
> sister list to this one where you can do this.
> Phillip is quite correct in what he says, YOU are quite wrong.
>
> Kurt
> who also wishes you had the manners to edit your quotes. I have to pay
> 7cents per megabyte for traffic greater than my satellite cap. This
> month I'm allready up for $50.
>
>
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>



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