[Stoves] binder for char briquettes

[ajheggie at gmail.com]

[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