Community helps answer Biochar coffee husk question

I approved this comment about 1 day after I asked the

Coffee Husk

question. It always amazes me how willing to help most people are. So for Green Mountain Coffee folks I hope this gives you more to work with on your Project to Biochar coffee husks in Australia.

Comment from Paul Olivier Email him here

It is easy to gasify coffee bean husks in a top-lit updraft gasifier. But a small fan is needed to force air through the husks. I use a small 40 x 40 mm fan, and the speed of the fan is controlled by a speed regulator. The amount of power consumed by this fan in the gasification of coffee bean husks is generally less than one watt.

Virtually no smoke is created during the gasification of coffee bean husks.
Here are two pictures of coffee bean husk being gasified:

IMG 0467 600 150x150 Community helps answer Biochar coffee husk question

Coffee Husk Biochar

IMG 0468 600 150x150 Community helps answer Biochar coffee husk question

biochar gasifier for coffee husks

 

 

 

I did a similar experiment with much drier coffee husks, and I got a much bluer flame that what you see in these two pictures.
Of course I get a much better result gasifying rice hulls:

IMG 0444 600 150x150 Community helps answer Biochar coffee husk question

tlud gasifier for coffee husks

IMG 0445 600 150x150 Community helps answer Biochar coffee husk question

closer look

Here are some of the latest designs of my 150 mm gasifier:

 

004 600 150x150 Community helps answer Biochar coffee husk question

001 600 150x150 Community helps answer Biochar coffee husk question003 600 150x150 Community helps answer Biochar coffee husk question

All of these gasifiers are fabricated out of stainless steel so that they can be used over many years.

My 100 gasifier sells for about $30 US.
The 150 gasifier sell for about $50 US.

This is a totally non-profit effort.
I also design larger gasifiers of a 100 kW capacity.
Here equipment price drop to less than $5.00/kW.

For the larger waste management concept that I am promoting in developing countries, see:

http://dl.dropbox.com/u/22013094/150%20Burner/IMG_0467.JPG
http://dl.dropbox.com/u/22013094/150%20Burner/IMG_0468.JPG
http://dl.dropbox.com/u/22013094/150%20Burner/IMG_0444.JPG
http://dl.dropbox.com/u/22013094/150%20Burner/IMG_045.JPG
http://dl.dropbox.com/u/22013094/150%20Gasifier%20Jpegs/001.jpg
http://dl.dropbox.com/u/22013094/150%20Gasifier%20Jpegs/003.jpg
http://dl.dropbox.com/u/22013094/150%20Gasifier%20Jpegs/004.jpg

http://dl.dropbox.com/u/22013094/Paper/composting.pdf

This is a great resource and I would like to thank the author for his rapid responce to a biochar question.

Charmaster Dolph Cooke

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About Charmaster

Male 45, Australian crazy about biochar. I love the feeling I get when I do something I thought I could not do. Intrests are :- Biochar, Bush Mechanics, Quantum Agriculture, Gardening, Composting, Alternative health through nature, helping others, Dreaming BIG then actioning those dreams.
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