Lew Bivona wrote:
In trying to read about charcoal making, I ended up frequently on pages that discuss wood gasification. I did not understand before today that in charcoal production, the "smoke" exiting the chimney is actually wood gas (at least that's what I've read and heard in articles and videos trying to figure this out!). But it was my impression that pyrolysis (which is what we're looking to encourage to make coal) occurs at lower temperatures and lower oxygen levels than gasification (which is what you want to be at to produce usable wood gas). And my understanding was that in gasification, your goal is to burn the fuel so hot that you're NOT left with charcoal (or at least as much of it), and that it essentially all gasifies. . So I guess third question: Could one design a charcoal maker/kiln/whatever from which one also harvested the wood gas exiting the system? Or are these two mutually incompatible processes, where efficiency in one (e.g. good at producing coal) would be bad at producing the other (e.g. low quality or low amounts of gas)?.