[Stoves] Adding value to charcoal from TLUD stoves
Joshua Guinto
jed.building.bridges at gmail.com
Sun Mar 30 02:03:44 CDT 2014
Thank you very much Rajan for sharing a very vital information.
I am now very much into the TLUD stoves and bio char for the disaster
affected areas in the Phlippines. I hereby share with you the latest of my
photo narratives.
Best regards
Jed
2014-03-30 11:27 GMT+08:00 Rajan Philip <rajan4023 at gmail.com>:
> Dear All,
>
> It has been observed that the charcoal obtained from a TLUD stove can
> sometimes be to "activated carbon" grade - but not always.
>
> Iodine nos above 1200 has been observed sometimes - but sometimes it can
> be as low as around 200. Methylene Blue no has been observed as just at
> around average/moderate values.
>
> Market charcoal generally has iodine no around 200 to 300 and Methylene
> Blue no at moderate values ( around 150 ).
>
> It looks like the following conditions have to be satisfied to arrive at
> the higher grade of charcoal :
>
>
> 1. The biomass used shouild be perfectly sun-dried.
>
> 2. The pyrolysis process has to be extended by a couple of minutes (
> after the flame drops down ) - so that all volatiles in the charcoal are
> "forced out" ( with the high temperature of charcoal burning ) which
> increases the porosity of charcoal.
>
>
> "Activated carbon grade" charcoal can be valuable in so many applications
> - including biochar application. I have personally seen that composting
> happens much faster when good grade TLUD charcoal is used in the process.
>
> I hope this will be taken up as a subject for *"intense research"* by
> TLUD stove enthusiasts.
>
>
> Regards
>
> Rajan
>
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