Re: GAS-L: Treated wood valorisation

[Arnt Karlsen <arnt@c2i.net>]

Eric Bruce Johnston wrote:
> 
> Joseph FONIO a écrit:
> 
> > Dear everyone at the gasification list,
> >
> > Has anybody heard of a technology to recycle the pieces of wood crossing the
> > railroads (sorry, I do not know the exact english word for this) ?
> 
> "Sleepers".  Some years back the French railways round here were selling a lot
> of them off, and they were great recycled as floor joists, window lintels etc.
> All hardwood : oak, beech, etc.
> 
> > As it is
> > treated wood, the pollutants are likely to cause problems for combustion or
> > gasification. Anyway there are huge ressources of this treated wood and any
> > technology able to make something out of it would surely make a lot of
> > money.
> 
> The ones around here were pressure treated with creosote, I am fairly certain,
> and since creosote is a product of destructive distillation of wood should be no
> problem in a gasifier.  However probably dangerous on an open hearth fire.
> Highly toxic.  I often suffer dreadful headaches after using it for treating
> outdoor timbers.
> 

..is creosote still legal anywhere?  I thought it had been 
banned everywhere?  Mean stuff.  Some leach out, if left in 
place, almost everything is released when burned.  I believe
sleepers are burned in cement furnaces here Norway.
Best way is gasify it. 


-- 
..med vennlig hilsen = with Kind Regards from Arnt... ;-)

  Scenarios always come in sets of three: 
  best case, worst case, and just in case.


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