[Stoves] Sequestering carbon -

[Anand Karve]

Dear Rolf,
we use flour swept from the floor of a flour mill. We have small flour
mills all over the city and even in villages. The waste flour is quite
cheap because it consists of a mixture of wheat, maize, sorghum
penisetum, millets, legumes and also a bit of dirt. We use 100g flour
per 1kg char powder, boil the flour in water to make a sticky paste,
mix it with char powder and extrude the mixture into cylindrical
briquettes. The briquettes are sun-dried on a plastic film. For small
scale users, we have made a mold, which makes flat slabs having criss
cross markings like a chocolate slab. These slabs can be broken by
hand into smaller squares before using them in a charcoal brazier.
Yours
A.D.Karve

On 5/4/15, Energies Naturals C.B. <energiesnaturals at gmx.de> wrote:
> Dear Crispin,
>
> you mention pillow briquettes out of char dust. Do you have any direct
> experience with how to make them?
> is there a technical guideline as for pressure needed and most of all the
> ideal aglomeration additive?
>
> I have tried to make them, but it is not easy unless I mix them with
> expensive starch or equally expensive ligno sulfonate
> in quite high concentrations.
>
> Thanks for any advice!
>
> Rolf
>
>
>
> On Mon, 4 May 2015 02:42:25 -0400
> Crispin Pemberton-Pigott <crispinpigott at outlook.com> wrote:
>
>> Dear Ad
>>
>> I completely agree.  Even if it has high ash, it would have value. The
>> value
>> of bio-char dust is about 2/3 the value of lump charcoal so there is a
>> market for it (making pillow briquettes).
>>
>> Thanks
>> Crispin
>>
>>
>> Dear Crispin,
>> if non-rotting leaf litter is a problem, one can char it and convert it
>> into
>> char  briquettes, to be used as fuel.
>> Yours
>> A.D.Karve
>> ***
>> Dr. A.D. Karve
>>
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>
>
> --
> Energies Naturals C.B. <energiesnaturals at gmx.de>
>
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>


-- 
***
Dr. A.D. Karve

Chairman, Samuchit Enviro Tech Pvt Ltd (www.samuchit.com)

Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)