[Stoves] Biomass Reactor Systems Was: Re: Fuel Testing

[frank]

Stovers,
If as you say carbon and hydrogen is what contributes to the BTU 
produced than I would think protein would contribute to a loss in heat. 
As the nitrogen is released as NH3 gas it would carry away some 
hydrogen. I wonder.

Frank

 



AJH wrote:

>On Sun, 8 Oct 2006 23:37:45 -0300, Kevin Chisholm wrote:
>
>  
>
>>Products LEAVING a classic Charcoal Kiln:
>>Pyrolysis gases + CO2 + H2O + N2 (Initially) + Char (At end) + Heat
>>
>>This approach seeks to describe various "biomass reactor systems" in terms 
>>of their function and outputs.
>>    
>>
>
>but misses the point as to which part of the biomass the remaining
>char actually originated from. AD Karve has given us an insight that
>char from paper (taken to be nearer to cellulose than wood) yields 30%
>at a temperature where we would expect wood to yield nearer to 45% of
>the dry matter. In fact I have seen a graph from research by Beall et
>al in 1974 that quite plainly does show the that lignin contributes
>most then hemicellulose and the char from cellulose is under 10% of
>the initial weight of cellulose by 600C. 
>
>AJH
>
>
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-- 
Frank Shields
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