[Gasification] Pete's question

[Toby Seiler]

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:gasification-bounces at lists.bioenergylists.org] 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
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/gasification_lists.bioenergylists.org/attachments/20130204/e065893c/attachment.html>