As fascinating as the relative humidity of the exhaust is, and the idea of
drying wood with the exhaust (which is precisely what has to happen here!), it
brings out another nagging question...
If we were to be drying wood with superheated gases (steam, nitrogen, CO, etc.)
what is the order of march for distructive distillation. I have read and reread
my industrial chemistry books and they tell me that for each ton of hard wood,
I'd get about 20 gallons of methanol and 20 gallons of acetone, some acetic
acid, water, methane, and some other stuff I don't remember. What I can't
remember from the books is the order of march.
So who gets driven off first? And why?
Here is why I am confused...wet wood has volatiles in the bark that will burn
first, these heat the body wood hot enough to cause the steam to hiss out of
butt ends. So if we tossed that example out, and simply heated wood at a
gradual
rate, would the distillation order be simply the boiling point of each molecule?
By rights, then the methane should come out first, but I never see flames
shooting out of the butt ends (or the worm hole pores) until the water is gone.
What is going on?
BPJ
_______________________________________________
The Gasification list has moved to
[email protected] - please update your email contacts to reflect
the change.
Please visit http://info.bioenergylists.org for more news on the list move.
Thank you,
Gasification Administrator
