[Stoves] Briquete from paper

[Crispin Pemberton-Pigott]

Dear Ron

I know this is early days and all for biochar discussion, but is there any
evidence that denser or lighter biochar makes more or less different to the
soil?

Is there a water retaining light mix and a denser bacteria sheltering mix
that could bring benefits?

I wonder if Dr AD Karve has any news on that.

If we are processing fuels intended to create better growing conditions,
then the stove should process the fuel in a supportive manner.

Regards
Crispin


-----Original Message-----
From: stoves-bounces at listserv.repp.org
[mailto:stoves-bounces at listserv.repp.org] On Behalf Of Ron Larson
Sent: January 29, 2009 10:14 PM
To: Discussion of biomass cooking stoves
Subject: Re: [Stoves] Briquete from paper

Tufa etal

    There is a possibility that one might convert paper  to char in a 
pyrolyzing or gasifying stove that contains an inner (or outer) semi-sealed 
compartment acting as a retort.  I am thinking of just a thick rolled up 
cylinder of paper, with the pyrolysis gases being flared in the main 
pyrolysis or gasifying region.  This is known to work well with leaves and 
twigs - I don't see why not with paper.  The retort might just be a salvaged

metal can.  The resultant char might work well as biochar - but also could 
be added to pellets or briquettes, to increase their energy content.

Ron