I have been making torrified for a while.
Its easy to spot a chunk of the stuff.
We are all accustomed to seeing the cracks that form in the grain as it dries.
But when you heat it to the point that we cook the locked in water out you see these cracks get larger.
Its basicly smoked wood HA HA!
You know I just had a short back yard fire with the wife and this is what we fuel it .
Mostly charcoal at the bottom of my wash machine tube ( 1/4 full ) with pyrolized wood on top.
Very little smoke, and the flames are translucent yellow about twice as high as normal.
Closer to the fuel bed blue flames from the CO combustion higher up in the flame the hydrogen is burning out as the cellulose is finally consumed…
Very intense and high temperatures.
Doug Williams once talked about this on the old woodgas list.
He said torification would drive out most the locked in moister that regular drying could not.
In the process the wood itself would be changed into fuel that retained more of its original energy content than charcoal.
Another interesting point he made is you never can get wood normally dry enough that it still does not contain an excess amount of water.
Some of the water in the wood will be cooked out and cool the reaction zone in the water gas shift to help regulate temperatures but its more than we need.
Torrifed wood makes great fuel, but its more trouble to make than charcoal because you have to watch you do not cook it too much and you still need a gasifier with a tar cracking hearth to use it.
No real advantage ( like burning premium in a car that only needs 85 octane )