[Stoves] More on flaming pyrolysis

[frank at compostlab.com]

> >    Tom Reed wished for a gas analyzer.  Maybe 8-10 years ago I reported on 
> >this
> >list (I think) on tests I had made with some borrowed (from the University
> >of Denver) expensive hydrocarbon gas monitoring apparatus.  The (well
> >described by others) 1) very low carbon dioxide, 2) lots of CO and 3) zero
> >oxygen above the pyrolysis front (but still in the charcoal and below the
> >secondary air port) were easy to see.

I am wondering how hydrogen is measured? I noticed the GC-TCD  only goes down
to about 4% (on a good day) and wonder if that is low enough for our purposes?
And are there other ways more in the 'wet chemistry' style that can be used?
For example water coming from the stack collected in moisture traps and
subtracted from the fuel moisture? 

And does anyone know what column type and temperature setting are best for
this purpose? I can find out but thought if someone is using one their
experience would be helpful. I have available an old HP-GC I might be able to
set up for testing purposes. Its been about 30 years since the last time I
packed columns and used one -and things have changed. 

Thanks
Frank
 




> 


--
Frank Shields
Soil Control Lab
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