[Stoves] Making smoke in 2013?

[Ronal W. Larson]

Dean and list:

    1.  Yes you are correct, of course.  And thanks for bringing it up

    2.  There are acceptable systems that are intended to go into the “forest” and produce char with flaring (no smoke; not just venting).  Some of these capture some liquids, which is better than not.  But mostly we would hope that the useful energy in the flared gases would justify bringing out the wood, not just the char.

    3.  I was at an “Africa Energy” conference last Thursday and Friday (in my hometown) and numerous mentions of the deforestation associated with making char in the way described.  A major problem for many countries - justified only by providing employment for the poorest.  With a biochar approach, the employment can still be there (to receive proper credit, the sourcing has to be certified).  Most importantly, char-making stoves (there are others beside TLUDs) can make money for the users - so this is a proper topic for this list.

    4.  Can you send the advertisement?    

    5.  I urge replacing “bio-char” with “biochar”.  Search engines miss the former.

Ron


On Nov 10, 2013, at 11:18 PM, Dean Still <deankstill at gmail.com> wrote:

> Dear All,
> 
> I received a strange advertisement today inviting participants to go into a forest and make charcoal. As we hear so often, smoke is quite dangerous to health and adds to climate warming. Making smoke to make bio-char just doesn't make sense especially in the USA.
> 
> It's great to use a TLUD to burn biomass very cleanly (no smoke) and to then use the made bio-char as a soil amendment. But I cannot imagine the rational behind burning slash piles resulting in lots of smoke to make some bio-char. Shouldn't bio-char only be made with no attending smoke?
> 
> Best,
> 
> Dean
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