[Stoves] binder for char briquettes

[Anand Karve]

Dear AJH,
thanks for the tip.
Yours A.D.Karve

On Sun, Jul 20, 2014 at 1:43 AM,  <ajheggie at gmail.com> wrote:
> [Default] On Thu, 17 Jul 2014 15:04:38 +0530,Anand Karve
> <adkarve at gmail.com> wrote:
>
>>Dear Stovers,
>>we use starch paste as binder while making char briquettes. The paste
>>is made by dissolving starch in boiling water. These briquettes have
>>to be dried for about 4 days before they can be sold. In the case of
>>biomass briquettes, the lignin in the biomass acts as a binder because
>>it melts when pressure is applied to the biomass. There is no need to
>>dry these briquettes after they have been made.
>
> I didn't see the outcome of the debate on whether pollutants resulted
> from including simple hydrocarbon plastics in pellets but grocery
> carrier bags are made from high density polythene in UK and I think
> this melts to a mouldable form at 135C. Extruded through a die
> maintained at this temperature  it should form an outer film which
> would hold the briquette together as it cools. These bags tend not to
> be recycled here so end up in landfill.
>
> AJH
>
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-- 
***
Dr. A.D. Karve
Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)