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<DIV>Using radiant heat from refractory (ceremics)<BR>There is something
about the performance of the ceramic panels which burn gas for the
production of radiant heat. They run at about 1000F<BR> I
believe these panels would be capable of cleaning the gas leaving the production
zone of a down daft gasifier.<BR> A simple experiment would be to run
a panel on dirty gas to see if there is any improvement in the appearance of the
gas being burned. Like an invisible flame!<BR>I am thinking of slicing up an
auto catalytic converter to make some super filters.<BR>These of course would
need to be installed sufficiently close to the gas producing area <BR>in order
to prevent condensation of any tars which might build up, poisoning the
filter.<BR>For this purpose a little secondary air might be needed.<BR>
</DIV>
<DIV> </DIV>
<DIV>GF<BR></DIV>
<DIV> </DIV>
<DIV>
<DIV>In a message dated 1/3/2014 1:49:08 P.M. Eastern Standard Time,
Doug.Williams@orcon.net.nz writes:</DIV>
<BLOCKQUOTE
style="BORDER-LEFT: blue 2px solid; PADDING-LEFT: 5px; MARGIN-LEFT: 5px"><FONT
style="BACKGROUND-COLOR: transparent" color=#000000 size=2 face=Arial><BR>Hi
GF,<BR><BR>Once the gases have formed and exists in a free space above the
bed, it is unlikely to change due to the influence of refractory radiation. My
understanding of this situation, is that you add more air to oxidise and
combustion any hydrocarbons turning smoke gas into CO2 (cleaner emission), or
like in a gasifier situation, pass it through an incandescent carbon bed at
temperatures over say 1,000C> to enable the thermal disassociation to take
place in a reducing environment. You end up then with the smoke gas being
(theoretically) all producer gas hopefully hydrocarbon free (:-).<BR><BR>I was
informed that some steam locomotives in South Africa were converted to the
type of gasifying principle and was used as an example of gasification during
a conference there about 1985 from memory. I have a photo somewhere in the
files.<BR><BR>Hope this helps.<BR>Doug
Williams,<BR>Fluidyne.<BR><BR><BR><BR>> > On Jan 3, 2014, at 1:05 AM,
GFWHELL@aol.com wrote:<BR>> > <BR>> > <BR>> >
Regarding the reflected heat from the refractory: If you were to travel on the
footplate of a steam locomotive at full regulator, you might observe a
temperature of 2,500 f in the fire box. in which there is generally a
refractory (brick) arch above the grate which extends the flame pattern and
generally helps the secondary air entering above the grate to insure compete
combustion. I have observed these arches to glow bight Yellow, the surface of
the brickwork actually melting with the heat. I am certain the radiation
has a lot to do with complete combustion. Would this form of radiation
help refine "smoke" (gas) breaking it down into short chain Molecules?<BR>>
> <BR>> >
GF<BR><BR>_______________________________________________<BR>Gasification
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