[Terrapreta] Eprida bio-char available

[Allan Balliett]

MAN! Do tell me more, since I clearly am under informed!

How long of a process is it, to take a pile of wood and and reduce it 
to self-igniting bio-char? Does it smolder for DAYS, WEEKS?

-Allan

At 10:33 AM -0400 8/1/07, Gerald Van Koeverden wrote:
>Allan,
>
>In the pyrolysis process using wood waste products for producing 
>bio-oil, char output comes to about 18% of the input.  But there's a 
>little problem with shipping and storing the stuff : it's 
>pyrogenic.  
>It will start burning spontaneously on exposure to air.
>
>Gerrit
>
>
>On 1-Aug-07, at 7:00 AM, Allan Balliett wrote:
>
>>I remain confused as to why pyrolysis char is in such short supply.
>>
>>It was my impression that 50% of the inputs are available as char
>>after the process.
>>
>>I guess what I'm missing is the size of the chambers and the length
>>of the process.
>>
>>Can someone (Danny Day?) bring me up to speed on this?
>>
>>Also, anyone know anything about the chicken manure pyrolysis 
>>operation in VA?
>>
>>Thanks
>>
>>-Allan Balliett
>>
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