[Gasification] ..back to defining gasification

[Arnt Karlsen]

On Fri, 12 May 2006 09:55:06 +0200, Dries wrote in message 
<002b01c67599$62748f90$53c1c19d at UGent.be>:

> my humble try at defining gasifiers:
> 
> "A gasifier is a device designed for the controlled production of a
> complex 

..disagreed, I want a simple gas mix, H2, CO and N2.  
I accept a little soot and ash, to be filtered out.

> gas mixture and process heat through accelerated conversion of
> a carbon-rich feedstock"
> 
> * accelerated conversion: usually thermochemical conversion, i.e. by
> applying heat (excludes slow bioconversion processes such as methane 
> fermentation
> from the definition).
> 
> * designed for controlled production of gas and heat: there is a
> production goal - this may distinguish (MSW) gasifiers from (MSW)
> incinerators, the latter having as primary goal to get rid of the
> (MSW) feedstock and only produce heat (...and more air pollution?) -
> in addition, the higher heat output of gasifiers distinguishes them
> also from bioconversion technologies.
> 
> * complex gas mixture: may be dirty (tars) or clean, directly usable
> as a  fuel or
> destined for further processing, distillation or production of fine 
> chemicals, whatever
> you want, it is a gas mixture with interesting features...

..aye.  And precisely what we wanna avoid dumping onto people.

-- 
..med vennlig hilsen = with Kind Regards from Arnt... ;o)
...with a number of polar bear hunters in his ancestry...
  Scenarios always come in sets of three: 
  best case, worst case, and just in case.