[Gasification] Some ideas to work on! including micro wave destruction of tar

[Mark Ludlow]

Thanks Geoff!

I am beginning to see how these suggestions are increasing hot gas
production.

Mark

-----Original Message-----
From: gasification-bounces at listserv.repp.org
[mailto:gasification-bounces at listserv.repp.org] On Behalf Of gfwhell at aol.com
Sent: Saturday, September 22, 2007 7:33 PM
To: gasification at listserv.repp.org
Subject: Re: [Gasification] Some ideas to work on! including micro wave
destruction of tar


 David.
It is quit possible to construct a Doughnut shaped "Faraday cage" just below
where the gas production occurs on our gasifiers.
The wave guide connecting this "Doughnut" will enter obliquely to limit the
possibility of energy re entering the wave guide.
The design of the "doughnut" will have to accommodate the wave length 2.45
Ghertz . I see no reason why a Plasma cannot be 
created in the hot gasses leaving the char zone. This will add a powerful
reaction zone in which the reduction process can occur. 
Steam could be added as well as re circulated carbon monoxide, to produce CO
+ H2.as well as removing TAR completely
Take a look at the following web sites and call me a liar.??
http://www.angelfire.com/electronic/cwillis/microwave.html.
Where are the innovators? This could increase gas production by 40%

GF


 

-----Original Message-----
From: David Shackleton <david at gripmagazine.org>
To: Discussion of biomass pyrolysis and gasification
<gasification at listserv.repp.org>
Sent: Sun, 16 Sep 2007 9:12 am
Subject: Re: [Gasification] Some ideas to work on!










GF wrote:

> If the hot zone of a fire is subjected to a beam of micro waves, something

> remarkable happens. The flames can be converted into a high energy plasma.

> This can be demonstrated? by putting a lighted candle into? a microwave 
> oven and switching on. Getting the wife's permission first of course.
> Now? it doesn't take a Quantum mechanic to figure out that the hot gasses 
> from a gasifier if treated with micro waves "while still incandescent" 
> could obtain air free combustion. The water content of this "smoke" would 
> provide enough oxygen to convert any? tar present,? into CO+ H2. carbon 
> has a tendency to absorb microwaves and generate heat.

Note that the microwaves in a microwave oven are "tuned" to match the 
vibrational frequency of the water molecule, and would not excite carbon, 
CO, H2 or any other molecule except water.  Solid carbon, as an electrical 
conductor, will absorb microwaves and absorb heat via circulating eddy 
currents, the way any metal object will in a microwave oven.  Presumably a 
plasma, also being electrically conductive, would as well.  However, gaseous

carbon, CO, H2 and other gasifier outputs would not.

David Shackleton 


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