[Gasification] Updated Update #2

[Thomas Reed]

Dear Jeff:

Gorgeous pictures and an interesting gasifier.  If I'm reading it right, 
it is a downdraft gasifier.

I note that you got a LOT of slag.  This is the problem with 
agricultural residues.  Wood typically contains < 1% ash, and so can be 
completely gasified without slag buildup.  However, with 2-20% slag it 
is impossible to get complete gasification of the carbon without the 
slag buildup. 

If you don't have a good bed of charcoal, you will get combustion on the 
grate. 

This is the Achilles heel of switchgrass and other non-woody biomass 
being used for clean gas for engines etc.

Try filling the tube with charcoal briquettes and then running. 

COMMENTS?

TOM REED               THE BIOMASS ENERGY FOUNDATION
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Jeff Davis wrote:
> Dear List,
>
> I updated the Gas-of-Fire 1000 update #2. It is day three pictures of the 
> flame, slag and char. It's at the end of the article (comment #1).
>
> http://gasifiers.bioenergylists.org/?q=node/280
>
>
> Jeff
>
>
>
>