RE: GAS-L: Re: [biofuel] Re wood gas emissions

["Gavin Gulliver-Goodall" <Gavin@roseplac.worldonline.co.uk>]

Yes burning on stoves will be just as clean depending on the nozzle design
to ensure optimum gas-air mixing.
CV of woodgas varies according to fuel, gasifier etc but 4 Mj/kg seems a
realistic number from memory Stoichiometric ration with air is about 1:1
where as propane is 22:1
Depending on temperature and exact conditions of combustion you may have NOx
or CO in the exhaust too.

-----Original Message-----
From: Harmon Seaver [mailto:hseaver@cybershamanix.com]
Sent: Friday, October 05, 2001 15:49
To: biofuel@yahoogroups.com
Cc: gasification@crest.org
Subject: GAS-L: Re: [biofuel] Re wood gas emissions

      Thanx, but burning wood and making woodgas are quite a bit different.
I
guess I need to rephrase my question. I'm building a wood gasifier. Woodgas
should be, if I understand it correctly, primarily CO and H2, along with N.
And as I recall from reading years ago, the exhaust of an engine running on
woodgas should be pretty pure CO2 & N, plus perhaps some H20. What about if
you
burn that woodgas in a gas cooking range? Is it the same, or don't you get
as
clean a burn?
      I've been searching the net for this, haven't found anything so far,
also
can't seem to find an actual BTU rating for woodgas, comparisions with
natural
gas, etc.

glenne1949@aol.com wrote:

>        No I don't have the specific info.  I do know that Dept of Energy,
or
> perhaps it was ERDA before DOE, did a study though one of their labs on
the
> emissions from simply burning wood.  There were, as I recollect, some 18
> different toxic emissions, a number of them carcinogenic, in the wood
smoke.
>  This study was perhaps 8 or 10 years ago.
>

--
Harmon Seaver, MLIS
CyberShamanix
Work 920-203-9633
Home 920-233-5820
hseaver@cybershamanix.com
http://www.cybershamanix.com/resume.html



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