Re: ATprojects - Offer of assistance

[Richard Stanley <rstanley@legacyfound.org>]

John,

We have used coffee husks in the wet process briquette which paul is now into. You will find that you will need long fibrous biomass material to bind it up into the solid non-elastic mass, which makes a good briquette when compressed under about 125 atmospheres and simultaneously dewatered, as this process requires,  Unfortunately, the ones who have mastered that art are rural farmers in MAlawi who tend to keep their recipe a secret lest they lose their competitive advantage. Some would call that selfish, We use the term "patenting".
Either way,  I will be shortly starting some training activity with the uganda wildlife and forestry department out here in coffee central, Uganda,. Coffee husks are on our list and will keep you all posted as to what we find best for other more fibrous biomass binders.

I recall that it "burned hot" but that  the fibrous additive had to be chosen with some attention to its ability to neutralize the burned coffee smell the briquette would otherwise produce.

Richard Stanley

John Olsen wrote:

Paul said.............You identify Coffee bean husks.  If not already done,
work needs to be done on
making those husks (and sawdust and other stuff) into a "processed
fuel"..................
This area of commerce is an important part of my sales effortfor making
Briquettes from Biomass.
The coffee growers by using the husks as a briquette fuel, can roast the
coffee before export, instead of just exporting the bean.
regards
JohnO

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