[Gasification] "ecogas" defined

[William Carr]

On Jul 20, 2007, at 3:58 AM, doug.williams wrote:

> No, CO2 (carbon dioxide) is not a combustible gas that can be  
> collected and
> reburnt, as it would need to be CO (carbon monoxide).  CO2 is the  
> result of
> the oxidation zone (exothermic heat) in a gasifier, but it then  
> must pass
> through a charcoal bed with temperatures of over 850C  to become CO
> (reduction). It requires a large amount of heat, and the reduction  
> process
> is called endothermic (heat consuming).
>
>> kill two birds with one stone
>
> No, more like a snake eating it's own tail. (:-)


You can't burn CO2 gas, but that doesn't mean you can't USE it.


The Oil From Algae folks are working on techniques that could use  
waste CO2 to feed Algae and create a host of possible side-benefits  
such as usable protein,  oil for bio-diesel, and incidentally, clean  
fresh oxygen.

If we can get some political will behind this research any coal-fired  
power plant below the Mason-Dixon line could be a possible site for  
co-generation of bio-diesel.


Farther North is a problem, as you'd have to either shut down for the  
length of the winter or find a way to do the process underground and  
pipe in concentrated sunlight via optical fiber cables.    In  
Southern climes the process would be a money-maker, especially with  
carbon credits thrown in.