[Gasification] [Stoves] Fuel test procedures for Tars

[Thomas Reed]

Dear Stovers and Gasifiers:

frank wrote:
> Hi Stovers,
>
> A few questions:
>
> What is 'tar'?
>   
We have two books at our bookstore (www.woodgas.com) on the practical 
measurement of "Tars", and the chemical nature of  TARS.

TOM REED                  TAR PRODUCER AND MEASURER







> It seems to form where the gases have cooled off and deposited on the 
> side of the stove pipe. Is it a 'resin' soluble in alcohol? or 'fats, 
> waxes or oils' soluble in ether?
>
> What is 'soot'?
> It seems to be in air suspension from the start to finish. Is it 
> inorganic material that went out the stack  and not collected at the 
> bottom?  or  mostly organic  'char' ?
> And is this in-soluble in both ether and alcohol?
>
> When you burn a wetter fuel in a gasifier there must be a lot more air 
> speed of the pyrolysis gases due to,  not only the hot air, but also the 
> expansion of the water(?).  Is this noticeable and must be adjusted for ? 
>
>
> Thanks
>
> Frank
>
>
>