Re: GAS-L: Ejecting and Burning High Tar Wood-Gas

[Reedtb2@cs.com]

Dear Ejectors:

Calculation of MW fine.

However, be aware that if the gas cools below the "dew point" of the tar (50
to 400C, depending on concentration), an aerosol mist will also be in the gas
with unstated MW.  (The tar MWs are in the 100-1000 range).  

Anyone know how to handle this in an ejector?

In a message dated 3/30/01 9:30:45 AM Mountain Standard Time,
VHarris001@aol.com writes:

In a message dated 03/29/2001 3:20:12 PM Eastern Standard Time,
arnt@c2i.net
writes:

> > If I've done my math correctly, I get the molecular weight of 24.37 for
the
>  > wood-gas composition you describe above.
>  
>  ..if you want me/us to verify your math, post it.
>  
>  This will also help the newbies learn how, and improves
>  everybody else's understanding of what we really do here.
>  

Hi Arnt, good suggestion.

I calculated the molecular weight of the wood-gas by multiplying the
molecular weight of each component gas by it's molecular weight then
summing
the total.

N2    50% * 28.01 = 14.005
CO2   8% * 44.01 = 3.5208
CO   22% * 28.01 = 6.1622
H2    18% * 2.02 = 0.3636
CH4  2% * 16.04 = 0.3208

The total for the wood gas should be 24.37.  I found the information on the
gases at:

http://www.concoa.com/frames/technical/gases/gases.htm

Best wishes,
Vernon Harris