Pete, from my research it takes a fairly consistent 1600+f and uses about
10,000 btu per pound of water to disassociate H20 thermally, taking into
account the total (bound and free) water mass and where in the system it is
introduced. Theoretically that energy is all recoverable. In practice I
expect 50+% in low quality heat (which I need for drying laminate stock).
Some of the best H2 and CO (real syngas not producer gas) has been shown by
General Atomics to be produced at 20psi. In my device, this is two seperate
reactors, one a "reformer". But I 'm still having problems in the grate of the
reformer with flows in four directions, so can't say I have a working prototype
yet. Progress is slow but steady.
Toby Seiler
seilertechco
From:Gasification [mailto:[email protected]] On
Behalf Of Pete & Sheri
Sent: Monday, February 4, 2013 11:51 AM
To: 'doug.williams'; 'Discussion of biomass pyrolysis and gasification'
Subject: Re: [Gasification] mycoremediation of tarry water
I probably have no business asking entering into this discussion since I am
neither a chemist nor a physicist, but---
Over the last several months I have been trying to learn the “truth” about the
dissociation of the water in my wood chips into Hydrogen and oxygen. I had
previously read someplace that it was a pretty simple process. You just heat
water to somewhere above 350 degrees C and there you go.
Well, lately I have become quite disconcerted as I have read that there are so
many other factors that can be involved, that it’s anybody’s guess as to
whether it will happen at all.
Some of the variables:
Pressure
Temperature (obviously)
Residence time
Presence or absence of carbon and form of that carbon. And, apparently, the
availability of carbon from other molecules.
And apparently, the list goes on and on.
So what is an ordinary human with a stratified downdraft gasifier to do to
reliably pry enough hydrogen out of the process to make it worth doing?
Pete Stanaitis
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