[Market-farming] Charcoal Production - Was: Loss of Soil Carbon After Tilling

Richard Stewart rstewart at zoomtown.com
Thu Oct 29 22:41:39 EDT 2009


That does not mean making biochar is not impossible.  There are lots  
of thoughts on the matter including several commercial ventures.  It  
is possible to produce char without the polluting gasses in the  
quantities discussed here.

Again, I am no expert on this and have not yet tested anything.


Richard Stewart
Carriage House Farm
North Bend, Ohio

An Ohio Century Farm Est. 1855

(513) 967-1106
rstewart at zoomtown.com

On Oct 29, 2009, at 1:20 PM, TMcD wrote:

> --- On Wed, 10/28/09, Wiener, Benjamin L CPT NG NG FORSCOM <benjamin.l.wiener at us.army.mil 
> > wrote:
>> Tom, what do you intend to use as a
>> heat source to char the wood that doesn't use carbon?
>> Nuclear? solar? hydro?  At best, in the most efficient
>> designs, 40% of the carbon used in the process remains as
>> biochar.  then add in the fuel costs for transporting
>> the wood and then distributing the char, and then you can
>> see that it really isn't as "green" as you imagine.
> Thank you very much for replying to my post.  I had no sooner posted  
> my first message when I realized that someone would probably mention  
> the CO2 emissions from the fuel used to heat the wood.  I can't  
> argue with that. Also, I've since found out that the fuel used is  
> often produced from the pyrolysis of the wood, so the CO2 emissions  
> from the fuel burning actually do come from the wood itself.  This  
> pretty much reduces my post to a technically true statement from a  
> narrow point of view that fails to be helpful to anyone.
> Sorry if I have wasted anyone's time.  I'll do way better in the  
> future, I promise.
> Thanks to Richard Stewart and Ben Wiener for their very astute  
> responses.
> Tom
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