[Gasification] [Stoves] Biomass Fuel

[Thomas Reed]

Dear Frank and All:

Rice hulls contain 20% fine silica.  If you try to burn them, the 
temperature is high enough to form a cocoon of solid siliica and prevent 
complete digestion.  It also heats the SiO2 above 800C and forms 
crystobalite which can cause silicosis. 

However, if you pyroyse them below 800C you produce a beautiful white 
silica that is an excellent absorbent, and can be sued for cosmetics and 
white wall tires. 

TOM REED

BEF



frank wrote:
> Dear Stovers,
>
> Are there elements in biomass fuel that would aid or hinder the complete 
> combustion or heat liberated from the fuel enough to be of importance?
>
> For example if the amount of calcium, sodium and/or potassium is high in 
> a fuel would a lot of heat be loss in the making of carbonates?
>
> Does ammonium phosphorus, or any of the above, known to aid in a more 
> complete combustion of the carbon?
>
> Perhaps sodium or potassium citrate?  or nitrates?
>
> I am just wonder if anyone knows of work that has already been done? or 
> if anyone has observed a possible effect on the ash 'shape' or fuel burn 
> that can be contributed to some chemical?.
>
> Thanks
> Frank
>
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